WO2018199341A1 - アレルギーの抗原およびそのエピトープ - Google Patents
アレルギーの抗原およびそのエピトープ Download PDFInfo
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- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6883—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/564—Immunoassay; Biospecific binding assay; Materials therefor for pre-existing immune complex or autoimmune disease, i.e. systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, rheumatoid factors or complement components C1-C9
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
- G01N33/6893—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids related to diseases not provided for elsewhere
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2200/00—Function of food ingredients
- A23V2200/30—Foods, ingredients or supplements having a functional effect on health
- A23V2200/304—Foods, ingredients or supplements having a functional effect on health having a modulation effect on allergy and risk of allergy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/24—Immunology or allergic disorders
Definitions
- the present invention relates to a novel antigen that is allergic to shrimp.
- the present invention also relates to a diagnostic kit, diagnostic composition, and diagnostic method for allergy to shrimp.
- the present invention also relates to a pharmaceutical composition containing the antigen, and a shrimp or processed shrimp product from which the antigen has been removed or reduced.
- the present invention further relates to a tester composition for determining the presence or absence of shrimp antigens in an object.
- the present invention also relates to a polypeptide containing an epitope of an antigen.
- the present invention also relates to an allergy diagnostic kit, a diagnostic composition, and a diagnostic method comprising the polypeptide.
- the present invention also relates to a pharmaceutical composition containing the polypeptide, and a raw material or processed product from which the polypeptide has been removed or reduced.
- the present invention further relates to a method for producing a processed product from which the polypeptide is removed or reduced.
- the present invention further relates to a tester composition for determining the presence or absence of an antigen containing the polypeptide in an object.
- IgE antibodies specific for specific antigens are produced in the serum and tissues of allergic patients. Allergic reactions are triggered by the physiological results produced by the interaction of this IgE antibody with a specific antigen.
- antigen refers to foods / foods that cause allergic symptoms in a broad sense, and refers to proteins (hereinafter also referred to as allergen components) contained in foods / foods to which specific IgE antibodies bind in a narrow sense.
- allergen reagents are often prepared simply by grinding foods / food ingredients, etc., of allergen candidates (Patent Document 1). For this reason, a positive reaction in an allergy test is detected only when the content of the allergen components contained in a conventional antigen reagent exceeds the threshold that allows a positive reaction to be determined for binding to an IgE antibody. The diagnostic efficiency was not high enough.
- allergen candidate foods and ingredients some allergen components are suggested and commercialized as test kits.
- test kits In order to increase the reliability of the allergy test, it is necessary to comprehensively identify allergen components, but the patient detection rate by measuring the allergen components is still insufficient. Identification of new shrimp allergens is not only important for improving the accuracy of diagnostics, but also very important as a target for low-allergen foods, low-allergen foods and therapeutics.
- the allergen-specific IgE antibody recognizes and binds to an epitope that is a specific amino acid sequence in the allergen component.
- Non-Patent Document 1 Non-Patent Document 1
- allergen components have been analyzed up to the epitope
- allergy diagnostic kit using a polypeptide containing an epitope on the market at present there is no allergy diagnostic kit using a polypeptide containing an epitope on the market at present.
- JP 2002-286716 A JP2011-33544 JP2011-33546A JP2011-33547 JP2011-33548
- the present invention provides a novel antigen that is allergic to shrimp.
- the present invention also provides a diagnostic method and diagnostic kit for allergy to shrimp.
- the present invention also provides a pharmaceutical composition containing the antigen, and a shrimp or processed shrimp product from which the antigen has been removed or reduced.
- the present invention further provides a tester composition for determining the presence or absence of shrimp antigens in an object.
- the present invention also provides a polypeptide containing an epitope of an antigen.
- the present invention also provides an allergy diagnostic kit, a diagnostic composition, and a diagnostic method comprising the polypeptide.
- the present invention also provides a pharmaceutical composition containing the polypeptide and a raw material or processed product from which the antigen containing the polypeptide has been removed or reduced.
- the present invention further relates to a method for producing a processed product from which the antigen has been removed or reduced.
- the present invention further provides a tester composition for determining the presence or absence of an antigen containing the polypeptide in a subject.
- the present inventors conducted intensive research on the identification of causative antigens for allergies to shrimp. As a result, the inventors succeeded in identifying a novel antigen that specifically binds to an IgE antibody in the serum of a patient having shrimp allergy. Based on this finding, the present invention has been completed.
- the present invention may be as follows.
- a shrimp allergy diagnostic kit comprising at least one of the following proteins (1) to (11): (1) (1A) a protein containing a C-terminal part of myosin heavy chain type 1 or a C-terminal part of myosin heavy chain type a or a variant thereof, Any of the following proteins (1A-a) to (1A-e), which is an allergic antigen against shrimp: (1A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 2, 45 or 87; (1A-b) a protein comprising an amino acid sequence having 70% or more identity with the amino acid sequence represented by SEQ ID NO: 2, 45 or 87; (1A-c) a protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 1, 44 or 86; (1A-d) a protein comprising an amino acid sequence encoded by a base sequence having 70% or more identity
- 3A a protein containing a C-terminal part of myosin heavy chain type 2 or a C-terminal part of myosin heavy chain type b or a variant thereof, Any of the following proteins (3A-a) to (3A-e), which is an antigen of allergy to shrimp: (3A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 161, 179 or 230; (3A-b) a protein comprising an amino acid sequence having 70% or more identity with the amino acid sequence represented by SEQ ID NO: 161, 179 or 230; (3A-c) a protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 160, 178 or 229; (3A-d) a protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in
- 5A Any one of the following proteins (5A-a) to (5A-e), which is a protein containing glycogen phosphorylase or a variant thereof, and is an antigen of allergy to shrimp: (5A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 362; (5A-b) a protein comprising an amino acid sequence having 70% or more identity with the amino acid sequence represented by SEQ ID NO: 362; (5A-c) a protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 361; (5A-d) a protein comprising an amino acid sequence encoded by a base sequence having 70% or more identity with the base sequence represented by SEQ ID NO: 361; or (5A-e) complementary to the base sequence represented by SEQ ID NO:
- a composition for diagnosing shrimp allergy comprising at least one of the proteins specified as (1) to (11) in [1] as an antigen.
- a method for providing an index for diagnosing shrimp allergy in a subject comprising the following steps: (I) contacting a sample obtained from a subject with an antigen, wherein the sample is a solution containing IgE antibodies; (Ii) detecting binding between the IgE antibody and the antigen in a sample obtained from the subject; (Iii) if binding of the subject IgE antibody to the antigen is detected, an indication is provided that the subject is allergic to shrimp; Wherein the antigen is at least one of the proteins identified as (1) to (11) in [1] above.
- a pharmaceutical composition comprising at least one of the proteins specified as (1) to (11) in [1] above.
- the shrimp or shrimp processed product is characterized in that the antigen is removed or reduced, and the antigen is at least one of the proteins specified as (1) to (11) in [1] above.
- a tester composition for determining the presence or absence of a shrimp antigen in an object comprising an antibody that binds to at least one of the proteins specified as (1) to (11) in [1] above .
- the present inventors have also succeeded in finding an epitope for a shrimp-derived antigen containing the above antigen.
- the IgE antibody can bind to a plurality of allergen components if the same amino acid sequence is present in different allergen components.
- the allergic patient's IgE antibody binds to both, so the antigen is cross-linked. Therefore, the epitope specified by the present application enables diagnosis and treatment of allergy including cross-ability and detection of a plurality of allergen components including the epitope.
- the present invention has been completed. That is, in another aspect, the present invention may be as follows.
- An allergy diagnostic kit comprising at least one of the following polypeptides: (E1) (i) a polypeptide comprising the amino acid sequence of SEQ ID NOs: 558-565; (ii) in SEQ ID NOs: 558 to 565, one or more amino acid residues corresponding to the 4, 5, 7, 8, 10, 11, 12, 13, 14, 15th amino acid residues of SEQ ID NO: 558 are A polypeptide comprising an amino acid sequence, substituted with any amino acid residue; (E2) (i) a polypeptide comprising the amino acid sequence of SEQ ID NOs: 566-581, 949; (Ii) one or more amino acid residues corresponding to the first, third, fourth, fifth, sixth, seventh, eighth, ninth, eleventh, and twelfth amino acid residues of SEQ ID NO: 566 in SEQ ID NOS: 566-581,949 A polypeptide comprising an amino acid sequence, wherein the group is substituted with any amino acid residue; (E3) (i) a polypeptide
- E32 (i) a polypeptide comprising the amino acid sequence of SEQ ID NOs: 793-809, 974, 975;
- (Ii) corresponds to amino acid residues at positions 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 of SEQ ID NO: 793 in SEQ ID NOs: 793-809, 974, 975
- E33 (i) a polypeptide comprising the amino acid sequence of SEQ ID NO: 810-816;
- Ii) in SEQ ID NO: 810-816, one or more amino acid residues corresponding to the 2, 4, 5, 6, 7, 8, 9, 10, 12, 14th amino acid residues of SEQ ID NO: 810 are A polypeptide comprising an amino acid sequence, substituted with any amino acid residue;
- E34 (i) a polypeptide comprising the amino acid sequence of SEQ ID
- a polypeptide comprising an amino acid sequence substituted with an amino acid residue of (E36) (i) a polypeptide comprising the amino acid sequence of SEQ ID NO: 833-846, 976; (Ii) corresponds to amino acid residues at positions 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 of SEQ ID NO: 833 in SEQ ID NO: 833-846,976 A polypeptide comprising an amino acid sequence, wherein one or more amino acid residues are substituted with any amino acid residue; (E37) (i) a polypeptide comprising the amino acid sequence of SEQ ID NOs: 847-857, 977; (Ii) one or more amino acid residues corresponding to the fifth, sixth, seventh, ninth, tenth, eleventh, twelfth, thirteenth and fourteenth amino acid residues of SEQ ID NO: 847 in SEQ ID NOS: 847-857, 977 A polypeptide comprising an amino acid sequence, substituted with any amino acid residue; (E38) (i)
- a diagnostic composition for allergy which comprises at least one of the polypeptides according to aspect 1.
- a method for providing an index for diagnosing a subject's allergy comprising the following steps: (I) contacting a sample obtained from a subject with an antigen, wherein the sample is a solution containing IgE antibodies; (Ii) detecting binding between the IgE antibody and the antigen in a sample obtained from the subject; (Iii) if binding of the subject IgE antibody to the antigen is detected, an indication is provided that the subject is allergic; Wherein said antigen is at least one of the polypeptides of embodiment 3.
- a pharmaceutical composition comprising at least one of the polypeptides according to aspect 3.
- a tester composition for determining the presence or absence of an antigen in a subject comprising an antibody that binds to at least one of the polypeptides according to aspect 3.
- any of the following primers (A) a primer comprising a part of the base sequence of the nucleic acid encoding the polypeptide of embodiment 3 and / or part of its complementary strand; or (b) SEQ ID NOs: 1, 44, 86, 116, 140, 145 , 160, 178, 229, 275, 299, 305, 361, 380, 398, 413, 420, 454, 480, 485, 519, 540 or a primer that is part of at least one of the base sequences shown in FIG.
- a primer that is part of a sequence that is complementary to at least one of the selected base sequences comprising:
- a method for determining the presence or absence of a polypeptide according to aspect 3 in a raw material / processed product comprising detecting the polypeptide according to aspect 3 in the raw material / processed product.
- a method for producing a processed product from which an antigen has been removed or reduced comprising the step of confirming that the antigen has been removed or reduced in the process of producing the processed product, wherein the antigen is described in Aspect 3.
- the production method which is at least one of the polypeptides.
- a novel antigen of allergy against shrimp can be provided. Since a novel allergen component causing shrimp allergy is identified in the present invention, a highly sensitive diagnostic method and diagnostic kit for allergy to shrimp, a pharmaceutical composition containing the antigen, shrimp or shrimp from which the antigen has been removed or reduced A processed product and a tester composition for determining the presence or absence of a shrimp antigen in an object can be provided.
- a novel polypeptide containing an epitope of an antigen can be provided.
- allergy-sensitive diagnostic kit, diagnostic composition, and diagnostic method pharmaceutical composition containing the polypeptide, and the presence or absence of an antigen containing the polypeptide in the target are determined.
- the tester composition for carrying out, the raw material or processed product from which the said polypeptide was removed or reduced, and the manufacturing method of the processed product can be provided.
- FIG. 1 is a photograph of a gel showing the migration pattern of proteins by two-dimensional electrophoresis for proteins contained in vaname shrimp.
- the band on the left side of the photograph is the molecular weight marker band, and the value on the left side of the photograph is the molecular weight (KDa) of each molecular weight marker.
- the numerical value at the top of the photo represents the isoelectric point.
- FIG. 2 is a photograph of an immunoblot using the serum of a shrimp allergic patient against a two-dimensional electrophoresis pattern of a protein contained in vaname shrimp. Spots 1 to 11 where the IgE antibody in the serum of shrimp allergic patients specifically reacted are shown in white frames, respectively.
- FIG. 1 is a photograph of a gel showing the migration pattern of proteins by two-dimensional electrophoresis for proteins contained in vaname shrimp.
- the band on the left side of the photograph is the molecular weight marker band
- KDa molecular weight (KDa) of each molecular weight marker.
- FIG. 3 is a photograph of a gel showing a protein migration pattern by two-dimensional electrophoresis for proteins contained in black tiger.
- the band on the left side of the photograph is the molecular weight marker band, and the value on the left side of the photograph is the molecular weight (KDa) of each molecular weight marker.
- the numerical value at the top of the photo represents the isoelectric point.
- FIG. 4 is a photograph of an immunoblot using the serum of a shrimp allergic patient against a two-dimensional electrophoresis pattern of a protein contained in a black tiger. Spots 1 to 11 where the IgE antibody in the serum of shrimp allergic patients specifically reacted are shown in white frames, respectively.
- FIG. 5 is a photograph of a gel showing a protein migration pattern by two-dimensional electrophoresis for proteins contained in the prawn.
- the band on the left side of the photograph is the molecular weight marker band, and the value on the left side of the photograph is the molecular weight (KDa) of each molecular weight marker.
- the numerical value at the top of the photo represents the isoelectric point.
- FIG. 6 is a photograph of an immunoblot using sera from shrimp allergic patients with respect to the two-dimensional electrophoresis pattern of the protein contained in the prawn. Spots 1 to 6 and 8 to 11 where the IgE antibody in the serum of shrimp allergic patients specifically reacted are shown in white boxes, respectively.
- FIG. 7 shows the results of examining the cross-reactivity of the peptides having the amino acid sequences of the respective epitopes by ELISA using sera from patients who are allergic to shrimp and wheat or crabs.
- FIG. 8 shows the results of examining the cross-reactivity of the peptides having the amino acid sequences of the respective epitopes by ELISA using sera from patients who are allergic to shrimp and wheat or crabs.
- FIG. 9 shows the results of examining the cross-reactivity of the peptides having the amino acid sequences of the respective epitopes by ELISA using sera from patients who are allergic to shrimp and wheat or crabs.
- FIG. 8 shows the results of examining the cross-reactivity of the peptides having the amino acid sequences of the respective epitopes by ELISA using sera from patients who are allergic to shrimp and wheat or crabs.
- FIG. 9 shows the results of examining the cross-reactivity of the peptides having the amino acid sequences of the respective epitopes by ELISA using
- FIG. 10 shows the results of examining the cross-reactivity of the peptides having the amino acid sequence of each epitope by ELISA using the serum of a patient who has allergies to shrimp and wheat or crabs.
- FIG. 11 shows the results of examining cross-reactivity of a peptide having an amino acid sequence of each epitope by ELISA using sera from patients who are allergic to shrimp and wheat or crabs.
- FIG. 12 shows the results of examining the cross-reactivity of the peptides having the amino acid sequences of the respective epitopes by ELISA using the serum of a patient who has allergies to shrimp and wheat or crabs.
- allergy refers to a state in which a hypersensitivity reaction unfavorable to the living body, which occurs when the antigen enters the living body sensitized to a certain antigen again.
- Allergic reactions can occur when in contact with an antigen or when ingested.
- contact refers to touching an object, and particularly refers to adhesion to the skin, mucous membranes (eye, lips, etc.) and the like for the human body.
- Ingestion means taking into the body, and taking by inhalation or oral means.
- an allergic reaction that occurs when food is ingested is called food allergy.
- the allergy may be a food allergy.
- IgE antibodies specific for antigens are produced in blood and tissues.
- IgE antibodies bind to mast cells or basophils.
- the antigen specific to the IgE antibody enters the body of the allergic disease patient again, the antigen combines with the IgE antibody bound to mast cells or basophils, resulting in the physiological effect of the IgE antibody-antigen interaction.
- physiological effects include the release of histamine, serotonin, heparin, eosinophil migration factor or various leukotrienes.
- These released substances elicit allergic reactions caused by the combination of IgE antibodies and specific antigens.
- an IgE antibody recognizes and binds to an epitope that is a specific amino acid sequence in a specific antigen, and an allergic reaction due to the antigen appears through the above-described pathway.
- the allergy targeted by the present invention is not particularly limited as long as it is an allergy to the allergen containing the epitope to be used.
- the allergen is a seafood, fruit, vegetable, nuts (seed and seeds), edible grass, cereal, livestock meat, milk, dairy product, etc., or a living body (particularly human) ingested by a living body (particularly human).
- Parasites that parasitize are included.
- Non-limiting examples of seafood include shrimp and crab belonging to the Decapoda (shrimp). What is generally recognized as “crustacea” is mostly included in the decapod (shrimp). Decapods (shrimps) include decapodal short tails (aka: crab bottoms) and decapodic tails (hermit crabs). Of the decapods (shrimps), all the names except for the decapods, short tails (aka: crab bottoms) and decapodic tails (hermit crabs) are “shrimp”. Shrimp will be described later.
- the decapodic short tail (aka crab lower) is a crab family (eg, Erimacrus isenbeckii), crabs (eg, Chionoecetescetopilio), Portunus trituberculatus)).
- crabs eg, Chionoecetescetopilio
- Portunus trituberculatus e.g., the Decapoda Coleoptera (hermit crab) include the king crab family (eg, Paralithodes camtschaticus).
- Non-limiting, seafood is also a squid belonging to the order of tsutsui and octopus. Including octopus.
- Seafood further includes fish belonging to the mackerel family and the cod family.
- Seafood further includes marsdalae shellfish.
- Non-limiting examples of the cuttle squid include Todarodes pacificus. The squid is also called “true squid”.
- Octopus octopus includes octopus (Octopus vulgaris).
- Mackerel fish include tuna (Thunnus orientalis) and cassava (Scomber japonicas).
- Cod fish include the cod (Gadus macrocephalus).
- Marsdalegaid shellfish include clams, clams and swordfish. In one embodiment, it includes clams (Ruditapes philippinarum).
- Non-limiting examples of the fruit include fruits belonging to the family Matabidae, Pineapple, Ursi, Cucurbitaceae, Citrus, Citrus, and Rosaceae.
- examples of vegetables include fruits belonging to the eggplant family, the cucurbitaceae family, and the camphor family.
- Examples of nuts (seed and seeds) include nuts (seed and seeds) belonging to Ursiaceae, Rosaceae and Walnuts.
- Examples of edible grass include edible grass belonging to the family Asteraceae.
- Examples of cereals include cereals belonging to the family Gramineae and Capaceae.
- Non-limiting, fruit of the family Tabidae includes kiwi (Actinidia deliciosa). Pineapple fruits include pineapple (Ananas comosus).
- the Urushi family includes nuts (seed and seeds) such as cashew nuts (Anacardium occidentale) in addition to fruits such as mango (Mangifera indica).
- Cucurbitaceae includes vegetables such as cucumber (Cucumis sativus) in addition to fruits such as melon (Cucumis melo).
- the fruit of the family Paceae contains banana (Musa acuminate). Citrus fruits include orange (Citrus sinensis).
- the Rosaceae include nuts (seed and berries) such as almonds in addition to fruits such as peach, strawberry, apple, pear and loquat.
- the Rosaceae includes apples (Malus domestica), almonds (Prunus dulcis).
- Non-limiting examples of solanaceous vegetables include eggplant (Solanum melongena) and tomato (Solanum lycopersicum).
- a camphoraceae vegetable includes avocado (Persea americana).
- Non-limiting examples of nuts (seed and seeds) include Urushiaceae cashew nuts (Anacardium occidentale), Rosaceae almonds (Prunus dulcis). Nuts of the walnut family (seed and seeds) include shinaguru (Juglans regia).
- Non-limiting examples of asteraceae edible grass include mugwort (Artemisia indica var. Maximowiczii or Artemisia indica). Gramineous grains include bread wheat (Triticum aestivum). The cereal family includes, for example, Fagopyrum esculentum.
- the type of livestock meat is not particularly limited. In one embodiment, it includes avian (chicken, duck, etc.) meat, pork, beef, lamb and the like. In one embodiment, it is avian meat. In one embodiment, chicken (Gallus gallus) meat.
- the origin of milk is not particularly limited. In one embodiment, it includes milk from cows, goats, sheep and the like. In one embodiment, it is milk (Bos Taurus). Dairy products are processed milk products. Non-limiting examples include butter, whipped cream, cheese, yogurt and ice cream.
- Parasites are, but are not limited to, for example, Anisakisae parasites. Parasites of the family Anisakis include Anisakis) simplex.
- the allergen is any of the following: Shrimp, crayfish (Erimacrus isenbeckii), snow crab (Chionoecetes opilio), blue crab (Portunus trituberculatus), king crab (Paralithodes camtschaticus), common squid (Todarodes pacificus), octopus (cientus berulshun) Madara (Gadus macrocephalus), clams (Ruditapes philippinarum), kiwi (Actinidia deliciosa), pineapple (Ananas comosus), mango (Mangifera indica), cashew nut (Anacardium occidentale), melon (Cucumis melo), banana (inate) Citrus sinensis), apples (Malus domestica), almonds (Prunusuldulcis), eggplants (Solanum melongena), tomatoes (Solanum lycopersicum), cucumbers (Cucumis sativus), avocados (
- maxim owiczii or Artemisia indica bread wheat (Triticum aestivum), buckwheat (Fagopyrum esculentum), chicken (Gallus gallus) meat, milk (Bos Taurus), anisakis (Anisakis simplex).
- the term “shrimp” refers to a shrimp belonging to the Eucarida.
- the shrimp belonging to the upper shrimp may be, for example, a shrimp belonging to the family Shrimp, Vietnamese tiger, Kurma shrimp
- the shrimp belonging to the lobster family may be, for example, lobster or prickly shrimp
- the shrimp belonging to the Shrimp family is, for example, Omar shrimp (lobster) It may be.
- the shrimp belonging to the familyshrimp can be, for example, a cherry shrimp, the shrimp belonging to the familyshrimp can be, for example, a white shrimp, and the shrimp belonging to the family Shrimp can be, for example, a sweet shrimp, a button shrimp, a shrimp Well, the shrimp belonging to the krill family may be, for example, krill.
- the shrimp targeted by the present invention may be any of the above shrimp.
- the shrimp targeted by the present invention is a shrimp belonging to the familyshrimp family (family Panaeidae).
- allergy to shrimp refers to a state having an allergic reaction that occurs using proteins contained in shrimp as antigens. Allergy to shrimp can cause an allergic reaction when contacted with an antigen contained in shrimp or when the antigen is ingested. In general, an allergic reaction that occurs when food is ingested is called food allergy.
- the allergy to shrimp may be food allergy.
- an antigen is a substance that induces an allergic reaction.
- it is a protein contained in raw materials such as foods, it is also called an allergen component.
- the antigen is preferably a protein.
- a protein is a molecule having a structure in which natural amino acids are linked by peptide bonds.
- the number of amino acids contained in the protein is not particularly limited.
- the term “polypeptide” also means a molecule having a structure in which natural amino acids are linked by peptide bonds.
- the number of amino acids contained in the polypeptide is not particularly limited.
- Polypeptide is a concept that includes “protein”. A polypeptide in which about 2 to 50 amino acids are linked by peptide bonds may be particularly referred to as a peptide.
- L form is shown unless otherwise specified.
- the notation of the amino acid sequence of a protein, polypeptide or peptide used in the present specification is represented by a single letter of amino acid based on standard usage and notation commonly used in the art, and the left direction is the amino terminal direction. Yes, and the right direction is the carboxy-terminal direction.
- X may be any substance having an amino group and a carboxyl group capable of binding to amino acids at both ends, and particularly represents any of 20 kinds of natural amino acids.
- the alanine scan method creates mutants in which residues in a protein are mutated one by one to alanine (glycine if the original amino acid is alanine). It is a method for site-specific identification of residues important for function. If the binding to the patient's IgE antibody remains even after mutation to alanine (glycine if the original amino acid is alanine), the residue is not important for binding to the IgE antibody, and other amino acids Even if it is changed to, binding properties remain.
- the binding property of IgE antibody means that the binding and reaction of the target epitope and IgE antibody are detected.
- binding and maintenance of IgE and antigen is important for the subsequent allergic reaction, and this binding and maintenance is responsible for epitope charge, hydrophobic bond, hydrogen bond, and aromatic interaction.
- the ability to bind and maintain them by losing them by changing to alanine or glycine means that the amino acid is not important.
- the protein contained in the shrimp specific shrimp was subjected to two-dimensional electrophoresis under the following conditions to identify the allergic antigen to shrimp.
- the first dimension electrophoresis is an isoelectric focusing gel
- the gel length is in the range of 5-10 cm
- the gel pH range is 3-10
- the pH gradient of the gel with respect to the migration direction is
- a gel length up to pH 5 is a
- a gel length of pH 5-7 is b
- a gel length of pH 7 or higher is c
- a is in the range of 0.15-0.3
- b Is a gel having a range of 0.4 to 0.7
- c is in a range of 0.15 to 0.3.
- Isoelectric focusing was carried out using an IPG gel Immobiline® Drystrip® (pH 3-10NL).
- IPGphor manufactured by GE was used as the electrophoresis apparatus.
- the upper limit of the current value of the electrophoresis apparatus is set to 75 ⁇ A per gel, and the voltage program is (1) a constant voltage process is performed at a constant voltage of 300 V up to 750 Vhr (the current change width for 30 minutes before the end of the process is (2) Gradually increase the voltage to 1000V over 300Vhr, (3) Gradually increase the voltage to 5000V over 4500Vhr, and (4) then the total Vhr to 12000 at 5000V constant voltage Until then, isoelectric focusing of the first dimension was performed.
- the gel concentration at the base end of the migration direction is set to 3 to 6%, and the gel concentration at the tip end in the migration direction is set higher than the gel concentration at the base end of the migration direction.
- SDS-PAGE was performed using NuPAGE 4-12% Bris-Tris Gels IPG well mini 1 mm manufactured by Life Technologies.
- As an electrophoresis instrument XCell SureLock Mini-Cell manufactured by life Technologies was used.
- electrophoresis was performed at 200 V constant voltage for about 45 minutes.
- spot 1 As a result of mass identification of antigen spot 1 of antigen (1) spot 1 , the amino acid sequences of SEQ ID NOs: 3 to 43 for vaname shrimp, SEQ ID NOs: 46 to 85 for black tiger, and SEQ ID NOs: 88 to 115 for prawns were obtained. was detected.
- SEQ ID NOs: 3 to 43 were identified to be the C-terminal portion of myosin heavy chain type 1 derived from vaname shrimp (amino acid sequence: SEQ ID NO: 2, nucleotide sequence encoding it: SEQ ID NO: 1).
- ⁇ 85 is identified to be the C-terminal portion of myosin heavy chain type ⁇ ⁇ 1 from the black tiger (amino acid sequence: SEQ ID NO: 45, base sequence encoding it: SEQ ID NO: 44), and SEQ ID NO: 88-115
- the amino acid sequence was identified to be the C-terminal part of myosin heavy chain type a from amino acid prawn (amino acid sequence: SEQ ID NO: 87, base sequence encoding it: SEQ ID NO: 86).
- the antigen of spot 1 may be any of (1A-a) to (1A-e) and (1B) below.
- (1A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 2, 45 or 87.
- (1A-b) 70% or more, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, with the amino acid sequence represented by SEQ ID NO: 2, 45 or 87 , A protein comprising 98% or more, 99% or more amino acid sequence.
- a protein comprising an amino acid sequence encoded by a nucleotide sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 1, 44 or 86.
- (1A-d) 70% or more, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, with the nucleotide sequence represented by SEQ ID NO: 1, 44 or 86 ,
- a protein comprising an amino acid sequence encoded by 98% or more and 99% or more of a base sequence.
- a protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid consisting of a base sequence complementary to the base sequence represented by SEQ ID NO: 1, 44 or 86.
- a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 2 to 43, the group consisting of SEQ ID NOs: 45 to 85, or the group consisting of SEQ ID NOs: 87 to 115, preferably the amino acid sequence A protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 45, 50 or all of the sequences.
- amino acid sequence represented by any of SEQ ID NOs: 2 to 43, SEQ ID NOs: 45 to 85, and SEQ ID NOs: 87 to 115 one or several amino acids may be deleted, substituted, inserted or added. .
- the proteins (1A-a) to (1A-e) and (1B) have a molecular weight of 80 to 260 kDa, when gels are subjected to two-dimensional electrophoresis under the conditions described in the above-mentioned section “Identification of antigen”.
- the molecular weight is around 90 to 230 kDa, more preferably 100 to 200 kDa, and an isoelectric point of 3.0 to 7.0, preferably 4.0 to 6.5, more preferably 5.0 to 6.0. It may be a protein that appears as a spot.
- SEQ ID NOs: 118 to 139 are the N-terminal portion of myosin heavy chain ⁇ type 1 derived from vannamei (amino acid sequence: SEQ ID NO: 117, base sequence encoding it: SEQ ID NO: 116).
- ⁇ 144 was identified to be the N-terminal part of myosin heavy chain type 1 from the black tiger (amino acid sequence: SEQ ID NO: 141, base sequence encoding it: SEQ ID NO: 140), and SEQ ID NOs: 147 to 159
- the amino acid sequence was identified to be the N-terminal part (amino acid sequence: SEQ ID NO: 146, base sequence encoding it: SEQ ID NO: 145) of myosin heavy chain type a derived from prawns.
- the antigen of spot 2 may be any of (2A-a) to (2A-e) and (2B) below.
- (2A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 117, 141 or 146.
- (2A-b) 70% or more, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, with the amino acid sequence represented by SEQ ID NO: 117, 141 or 146 , A protein comprising 98% or more, 99% or more amino acid sequence.
- (2A-c) A protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 116, 140 or 145.
- (2A-d) 70% or more, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, with the base sequence represented by SEQ ID NO: 116, 140 or 145 ,
- a protein comprising an amino acid sequence encoded by 98% or more and 99% or more of a base sequence.
- (2A-e) A protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid comprising a base sequence complementary to the base sequence represented by SEQ ID NO: 116, 140 or 145.
- (2B) a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 117 to 139, the group consisting of SEQ ID NOs: 141 to 144, or the group consisting of SEQ ID NOs: 146 to 159, preferably the amino acid sequence A protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 or all of the sequences.
- a protein comprising one, preferably a protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15 or all sequences of the amino acid sequence.
- amino acid sequence represented by any of SEQ ID NOs: 117 to 139, SEQ ID NOs: 141 to 144, and SEQ ID NOs: 146 to 159 one or several amino acids may be deleted, substituted, inserted, or added. .
- the proteins (2A-a) to (2A-e) and (2B) have a molecular weight of 50 to 160 kDa in a gel subjected to two-dimensional electrophoresis under the conditions described in the above-mentioned section “Identification of antigen”.
- the molecular weight is around 55 to 150 kDa, more preferably 60 to 130 kDa, and an isoelectric point of 4.5 to 10.0, preferably 5.0 to 9.5, more preferably 5.5 to 9.0. It may be a protein that appears as a spot.
- SEQ ID NOs: 162 to 177 were the C-terminal portion of myosin heavy chain type 2 derived from vaname shrimp (amino acid sequence: SEQ ID NO: 161, base sequence encoding it: SEQ ID NO: 160).
- ⁇ 228 is identified to be the C-terminal part of myosin : heavy chain type ⁇ 2 derived from black tiger (amino acid sequence: SEQ ID NO: 179, base sequence encoding it: SEQ ID NO: 178), and SEQ ID NOs: 231 to 274
- the amino acid sequence was identified to be the C-terminal part of myosin heavy chain type b derived from prawns (amino acid sequence: SEQ ID NO: 230, base sequence encoding it: SEQ ID NO: 229).
- the antigen of spot 3 may be any one of (3A-a) to (3A-e) and (3B) below.
- (3A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 161, 179 or 230.
- (3A-b) 70% or more identity with the amino acid sequence represented by SEQ ID NO: 161, 179 or 230, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more , A protein comprising 98% or more, 99% or more amino acid sequence.
- (3A-d) 70% or more identity with the base sequence represented by SEQ ID NO: 160, 178 or 229, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more ,
- a protein comprising an amino acid sequence encoded by 98% or more and 99% or more of a base sequence.
- (3A-e) A protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid comprising a base sequence complementary to the base sequence represented by SEQ ID NO: 160, 178 or 229.
- (3B) a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 161 to 177, the group consisting of SEQ ID NOs: 179 to 228, or the group consisting of SEQ ID NOs: 230 to 274, preferably the amino acid sequence A protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 35, 40, 45 or all of the sequences.
- amino acid sequence represented by any of SEQ ID NO: 161 to 177, SEQ ID NO: 179 to 228, and SEQ ID NO: 230 to 274 one or several amino acids may be deleted, substituted, inserted or added. .
- the proteins (3A-a) to (3A-e) and (3B) have a molecular weight of 80 to 260 kDa in a gel subjected to two-dimensional electrophoresis under the conditions described in the above-mentioned section “Identification of antigen”.
- the molecular weight is around 90 to 230 kDa, more preferably 100 to 200 kDa, and an isoelectric point of 3.0 to 7.0, preferably 4.0 to 6.5, more preferably 5.0 to 6.0. It may be a protein that appears as a spot.
- SEQ ID NO: 277-298 is the N-terminal part of myosin ⁇ heavy chain type 2 derived from vannamei shrimp (amino acid sequence: SEQ ID NO: 276, base sequence encoding it: SEQ ID NO: 275).
- ⁇ 304 is identified as the N-terminal part of myosin ⁇ ⁇ heavy chain type 2 derived from black tiger (amino acid sequence: SEQ ID NO: 300, base sequence encoding it: SEQ ID NO: 299), and SEQ ID NO: 307-320
- the amino acid sequence was identified to be the N-terminal portion (amino acid sequence: SEQ ID NO: 306, base sequence encoding it: SEQ ID NO: 305) of myosin heavy chain type b derived from prawns.
- the antigen of spot 4 may be any of the following (4A-a) to (4A-e) and (4B).
- (4A-c) a protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 275, 299 or 305.
- (4A-d) 70% or more, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, the identity with the base sequence represented by SEQ ID NO: 275, 299 or 305 ,
- a protein comprising an amino acid sequence encoded by 98% or more and 99% or more of a base sequence.
- (4A-e) A protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid comprising a base sequence complementary to the base sequence represented by SEQ ID NO: 275, 299 or 305.
- (4B) a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 276 to 298, the group consisting of SEQ ID NOs: 300 to 304, or the group consisting of SEQ ID NOs: 306 to 320, preferably the amino acid sequence A protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 or all of the sequences.
- At least an amino acid sequence selected from the group consisting of SEQ ID NOs: 276-293 and 295-298, the group consisting of SEQ ID NOs: 300-304, or the group consisting of SEQ ID NOs: 306, 307, and 309-319 A protein comprising one, preferably a protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 or all sequences of the amino acid sequence.
- amino acid sequence represented by any of SEQ ID NOs: 276 to 298, SEQ ID NOs: 300 to 304, and SEQ ID NOs: 306 to 320 one or several amino acids may be deleted, substituted, inserted, or added. .
- the proteins (4A-a) to (4A-e) and (4B) have a molecular weight of 50 to 160 kDa, when gels are subjected to two-dimensional electrophoresis under the conditions described in the above item “Identification of antigen”.
- the molecular weight is around 55 to 150 kDa, more preferably 60 to 130 kDa, and an isoelectric point of 4.5 to 10.0, preferably 5.0 to 9.5, more preferably 5.5 to 9.0. It may be a protein that appears as a spot.
- SEQ ID NOS: 363 to 379 are glycogen phosphorylases derived from prawns (amino acid sequence: SEQ ID NO: 362, base sequence encoding it: SEQ ID NO: 361).
- SEQ ID NOs: 321 to 336 and SEQ ID NOs: 337 to 360 glycogen-derived phosphorylase derived from prawns was hit. That is, since a protein with high homology was detected in vaname shrimp and black tiger, glycogen phosphorylase and its homologue were judged to be shrimp antigens.
- the antigen of spot 5 may be any of (5A-a) to (5A-e) and (5B) below.
- (5A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 362.
- (5A-b) 70% or more identity with the amino acid sequence represented by SEQ ID NO: 362, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98% or more , A protein comprising 99% or more amino acid sequence.
- (5A-c) a protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 361.
- (5A-d) 70% or more identity with the base sequence represented by SEQ ID NO: 361, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98% or more , A protein comprising an amino acid sequence encoded by 99% or more of the base sequence.
- (5A-e) a protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid comprising a base sequence complementary to the base sequence represented by SEQ ID NO: 361.
- a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 321 to 336, the group consisting of SEQ ID NOs: 337 to 360, or the group consisting of SEQ ID NOs: 362 to 379, preferably the amino acid sequence A protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 or all of the sequences.
- amino acid sequence represented by any of SEQ ID NOs: 321 to 336, SEQ ID NOs: 337 to 360, and SEQ ID NOs: 362 to 379 one or several amino acids may be deleted, substituted, inserted, or added. .
- the proteins (5A-a) to (5A-e) and (5B) have a molecular weight of 70 to 160 kDa in a gel subjected to two-dimensional electrophoresis under the conditions described in the above-mentioned section “Identification of antigen”.
- the molecular weight is around 75 to 140 kDa, more preferably 80 to 130 kDa, and an isoelectric point of 5.0 to 9.0, preferably 5.5 to 8.5, more preferably 6.0 to 8.0. It may be a protein that appears as a spot.
- SEQ ID NOs: 382 to 397 are a part of the hemocyanin subunit L1 derived from lobster shrimp (amino acid sequence: SEQ ID NO: 381, base sequence encoding it: SEQ ID NO: 380), and SEQ ID NOs: 400 to 412 Is identified as a hemocyanin derived from black tiger (amino acid sequence: SEQ ID NO: 399, base sequence encoding it: SEQ ID NO: 398), and the amino acid sequence of SEQ ID NOs: 415 to 419 is a hemocyanin subunit L derived from prawn (Amino acid sequence: SEQ ID NO: 414, base sequence encoding it: SEQ ID NO: 413) was identified.
- the antigen of spot 6 may be any of the following (6A-a) to (6A-e) and (6B).
- (6A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 381, 399 or 414.
- (6A-b) 70% or more identity with the amino acid sequence represented by SEQ ID NO: 381, 399 or 414, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more , A protein comprising 98% or more, 99% or more amino acid sequence.
- (6A-c) A protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 380, 398 or 413.
- (6A-d) 70% or more, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, the identity with the base sequence represented by SEQ ID NO: 380, 398 or 413 , A protein comprising an amino acid sequence encoded by 98% or more and 99% or more of a base sequence.
- a protein comprising at least one of the amino acid sequences, preferably a protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10 or all sequences of said amino acid sequence.
- amino acid sequence represented by any of SEQ ID NOs: 381 to 397, SEQ ID NOs: 399 to 412 and SEQ ID NOs: 414 to 419 one or several amino acids may be deleted, substituted, inserted or added. .
- the proteins (6A-a) to (6A-e) and (6B) have a molecular weight of 50 to 110 kDa, when gels are subjected to two-dimensional electrophoresis under the conditions described in the above-mentioned section “Identification of antigen”.
- the molecular weight is around 55 to 100 kDa, more preferably 60 to 90 kDa
- the isoelectric point is 4.0 to 7.0, preferably 4.5 to 6.5, more preferably 5.0 to 6.0. It may be a protein that appears as a spot.
- the spot 7 was analyzed by comparing the mass data obtained from the mass spectrometer with the protein data of NCBI. As a result, it was identified that SEQ ID NOs: 422 to 435 were pyruvate kinase 3 (amino acid sequence: SEQ ID NO: 421, base sequence encoding it: SEQ ID NO: 420) derived from lobster shrimp. In addition, as for SEQ ID NOs: 436 to 441, pyruvate kinase ⁇ 3 derived from vaname shrimp was hit. That is, since a protein with high homology was detected in Black Tiger, it was determined that pyruvate kinase 3 and its homologue are shrimp antigens.
- the antigen of spot 7 may be any of (7A-a) to (7A-e) and (7B) below.
- (7A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 421.
- (7A-b) 70% or more identity with the amino acid sequence represented by SEQ ID NO: 421, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98% or more , A protein comprising 99% or more amino acid sequence.
- (7A-c) A protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 420.
- (7A-d) 70% or more identity with the base sequence represented by SEQ ID NO: 420, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98% or more , A protein comprising an amino acid sequence encoded by 99% or more of the base sequence.
- (7A-e) A protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid comprising a base sequence complementary to the base sequence represented by SEQ ID NO: 420.
- a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 421 to 435 or the group consisting of SEQ ID NOs: 436 to 441, preferably at least 2, 3, 4, 5, A protein comprising 6, 7, 8, 9, 10 or all sequences.
- amino acid sequence represented by any of SEQ ID NOs: 421 to 435 and SEQ ID NOs: 436 to 441 one or several amino acids may be deleted, substituted, inserted or added.
- the proteins (7A-a) to (7A-e) and (7B) are those having a molecular weight of 45 to 80 kDa in gels subjected to two-dimensional electrophoresis under the conditions described in the above-mentioned “Identification of antigen”, Preferably, the molecular weight is around 50 to 75 kDa, more preferably 55 to 70 kDa, and an isoelectric point of 4.5 to 9.0, preferably 5.0 to 8.5, more preferably 5.5 to 8.0. It may be a protein that appears as a spot.
- the spot 8 was analyzed by comparing the mass data obtained from the mass spectrometer with the protein data of NCBI. As a result, it was identified that SEQ ID NOs: 456 to 479 were phosphopyruvate hydratase derived from black tiger (amino acid sequence: SEQ ID NO: 455, base sequence encoding it: SEQ ID NO: 454). In addition, as for SEQ ID NOs: 442 to 453, phosphopyruvate hydratase derived from black tiger was hit. That is, since a protein with high homology was detected in vaname shrimp, it was determined that phosphopyruvate hydratase and its homolog are the shrimp antigens.
- SEQ ID NOs: 482 to 484 are phosphopyruvate hydratase derived from tiger prawn (amino acid sequence: SEQ ID NO: 481, base sequence encoding it: SEQ ID NO: 480).
- the antigen of spot 8 may be any of the following (8A-a) to (8A-e) and (8B).
- a protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 454 or 480.
- (8A-d) 70% or more of identity with the base sequence represented by SEQ ID NO: 454 or 480, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98 % Or more, a protein comprising an amino acid sequence encoded by 99% or more of a base sequence.
- a protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid comprising a base sequence complementary to the base sequence represented by SEQ ID NO: 454 or 480.
- 8B a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 442 to 453, the group consisting of SEQ ID NOs: 455 to 479, or the group consisting of SEQ ID NOs: 481 to 484, preferably the amino acid sequence A protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 or all of the sequences.
- a protein comprising at least one of the amino acid sequences preferably a protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15 or all of the amino acid sequences.
- amino acid sequence represented by any of SEQ ID NOs: 442 to 453, SEQ ID NOs: 455 to 479, and SEQ ID NOs: 481 to 484 one or several amino acids may be deleted, substituted, inserted or added. .
- the proteins (8A-a) to (8A-e) and (8B) have a molecular weight of 35 to 80 kDa in a gel subjected to two-dimensional electrophoresis under the conditions described in the above-mentioned section “Identification of antigen”.
- the molecular weight is around 40 to 75 kDa, more preferably 45 to 70 kDa, and an isoelectric point of 4.0 to 8.0, preferably 4.5 to 7.5, more preferably 5.0 to 7.0. It may be a protein that appears as a spot.
- the spot 9 was analyzed by comparing the mass data obtained from the mass spectrometer with the protein data of NCBI.
- SEQ ID NOs: 487 to 490 were mitochondrial ATP synthase subunit alpha precursor (amino acid sequence: SEQ ID NO: 486, nucleotide sequence encoding the same: SEQ ID NO: 485) derived from lobster shrimp.
- SEQ ID NOs: 491 to 497 and SEQ ID NOs: 498 to 518 mitochondrial ATP synthase subunit alpha precursor derived from lobster shrimp was hit.
- the antigen of spot 9 may be any of (9A-a) to (9A-e) and (9B) below.
- (9A-a) a protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 486.
- (9A-b) 70% or more identity with the amino acid sequence represented by SEQ ID NO: 486, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98% or more , A protein comprising 99% or more amino acid sequence.
- (9A-c) A protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 485.
- (9A-d) 70% or more identity with the base sequence represented by SEQ ID NO: 485, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98% or more , A protein comprising an amino acid sequence encoded by 99% or more of the base sequence.
- (9A-e) A protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid comprising a base sequence complementary to the base sequence represented by SEQ ID NO: 485.
- a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 486 to 490, the group consisting of SEQ ID NOs: 491 to 497, or the group consisting of SEQ ID NOs: 498 to 518, preferably the amino acid sequence A protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 or all of the sequences.
- a protein comprising one, preferably a protein comprising at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 15 or all sequences of the amino acid sequence.
- amino acid sequence represented by any of SEQ ID NOs: 486 to 490, SEQ ID NOs: 491 to 497 and SEQ ID NOs: 498 to 518 one or several amino acids may be deleted, substituted, inserted or added. .
- the proteins (9A-a) to (9A-e) and (9B) are those having a molecular weight of 40 to 70 kDa, when gels are subjected to two-dimensional electrophoresis under the conditions described in the above item “Identification of antigen”.
- the molecular weight is around 45 to 65 kDa, more preferably 50 to 60 kDa
- the isoelectric point is 5.0 to 10.0, preferably 5.5 to 9.5, more preferably 6.0 to 9.0. It may be a protein that appears as a spot.
- the spot 10 was analyzed by comparing the mass data obtained from the mass spectrometer with the protein data of NCBI. As a result, it was identified that SEQ ID NOs: 521 to 527 were troponin I derived from the lobster shrimp (amino acid sequence: SEQ ID NO: 520, base sequence encoding it: SEQ ID NO: 519). In addition, with regard to SEQ ID NOs: 528 to 532 and SEQ ID NOs: 533 to 539, troponin I derived from the lobster shrimp was hit. That is, since proteins with high homology were detected in black tiger and car prawns, it was determined that troponin I and its homologues are shrimp antigens.
- the antigen of the spot 10 may be any of the following (10A-a) to (10A-e) and (10B).
- (10A-c) A protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 519.
- (10A-d) 70% or more identity with the base sequence represented by SEQ ID NO: 519, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98% or more , A protein comprising an amino acid sequence encoded by 99% or more of the base sequence.
- (10A-e) A protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid comprising a base sequence complementary to the base sequence represented by SEQ ID NO: 519.
- a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 520 to 527, the group consisting of SEQ ID NOs: 528 to 532, or the group consisting of SEQ ID NOs: 533 to 539, preferably the amino acid sequence A protein comprising at least 2, 3, 4, 5, 6 or all of the sequences. More preferably, it comprises at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 520 to 525 and 527, the group consisting of SEQ ID NOs: 528 to 530 and 532, or the group consisting of SEQ ID NOs: 533 to 537 and 539.
- a protein preferably a protein comprising at least 2, 3, 4, 5 or all sequences of the amino acid sequence.
- amino acid sequence represented by any of SEQ ID NOs: 520 to 527, SEQ ID NOs: 528 to 532, and SEQ ID NOs: 533 to 539 one or several amino acids may be deleted, substituted, inserted, or added. .
- the proteins of the above (10A-a) to (10A-e) and (10B) have a molecular weight of 10 to 50 kDa, when gel is subjected to two-dimensional electrophoresis under the conditions described in the above-mentioned “Identification of antigen”.
- the molecular weight is around 15-40 kDa, more preferably 20-40 kDa, and an isoelectric point of 7.0-11.0, preferably 7.5-10.5, more preferably 8.0-10.0. It may be a protein that appears as a spot.
- SEQ ID NOs: 542 to 547 are cyclophilin A derived from the tiger shrimp (amino acid sequence: SEQ ID NO: 541, base sequence encoding it: SEQ ID NO: 540).
- SEQ ID NOs: 554 to 557 cyclophilin A derived from vannamei shrimp was hit. That is, since a protein with high homology was detected in the prawn, it was determined that cyclophilin A and its homologue were the shrimp antigens.
- SEQ ID NOs: 550 to 553 are black tiger-derived cyclophilin A (amino acid sequence: SEQ ID NO: 549, base sequence encoding it: SEQ ID NO: 548).
- the antigen of the spot 11 may be any of the following (11A-a) to (11A-e) and (11B).
- (11A-a) A protein comprising an amino acid sequence in which one or several amino acids are deleted, substituted, inserted or added in SEQ ID NO: 541 or 549.
- (11A-b) 70% or more identity with the amino acid sequence represented by SEQ ID NO: 541 or 549, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98 % Or more, protein containing 99% or more amino acid sequence.
- (11A-c) A protein comprising an amino acid sequence encoded by a base sequence in which one or several nucleotides are deleted, substituted, inserted or added in SEQ ID NO: 540 or 548. (11A-d) 70% or more of identity with the base sequence represented by SEQ ID NO: 540 or 548, preferably 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, 97% or more, 98 % Or more, a protein comprising an amino acid sequence encoded by 99% or more of a base sequence.
- (11A-e) A protein comprising an amino acid sequence encoded by a nucleic acid that hybridizes under stringent conditions with a nucleic acid comprising a base sequence complementary to the base sequence represented by SEQ ID NO: 540 or 548.
- (11B) a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 541 to 547, the group consisting of SEQ ID NOs: 549 to 553, or the group consisting of SEQ ID NOs: 554 to 557, preferably the amino acid sequence A protein comprising at least 2, 3, 4, 5 or all of the sequences.
- a protein comprising at least one amino acid sequence selected from the group consisting of SEQ ID NOs: 541 to 543, 545, and 546, the group consisting of SEQ ID NOs: 549 to 553, or the group consisting of SEQ ID NOs: 554 to 556, Preferably a protein comprising at least two, three or all of the amino acid sequences.
- amino acid sequence represented by any of SEQ ID NOs: 541 to 547, SEQ ID NOs: 549 to 553, and SEQ ID NOs: 554 to 557 one or several amino acids may be deleted, substituted, inserted or added. .
- the proteins (11A-a) to (11A-e) and (11B) have a molecular weight of 10 to 30 kDa in a gel subjected to two-dimensional electrophoresis under the conditions described in the above-mentioned section “Identification of antigen”.
- the molecular weight is in the vicinity of 13 to 25 kDa, more preferably 15 to 20 kDa, and the isoelectric point is 7.0 to 11.0, preferably 7.5 to 10.5, more preferably 8.0 to 10.0. It may be a protein that appears as a spot.
- the above proteins (1) to (11), which are antigens and the polypeptides (E1) to (E50) described later, are subjected to phosphorylation, sugar chain modification, aminoacylation, ring opening, deamination, etc. Alternatively, embodiments in which the amino acid residue of the polypeptide is modified are also included.
- the proteins (1) to (11) described above and the polypeptides (E1) to (E50) described later are allergic antigens.
- amino acids when “one or several amino acids are deleted, substituted, inserted or added” in the amino acid sequence, one or several amino acids are deleted in the target amino acid sequence. Or an amino acid sequence in which other amino acids are substituted, other amino acids are inserted, and / or other amino acids are added.
- Several amino acids means, but not limited to, 200 or less, 100 or less, 50 or less, 30 or less, 20 or less, 15 or less, 12 or less, 10 or less, 8 or less, Means 6 amino acids, 4 amino acids, 3 amino acids or less.
- several amino acids mean 30%, preferably 25%, 20%, 15%, 10%, 5%, 3%, 2% or 1% of amino acids relative to the total length of the amino acid sequence.
- substitution is preferably a conservative substitution.
- a conservative substitution is the replacement of a particular amino acid residue with a residue having similar physicochemical characteristics, but any substitution that does not substantially change the structural characteristics of the original sequence. For example, any substitution may be made so long as the substituted amino acid does not destroy the helix present in the original sequence or other types of secondary structures characterizing the original sequence.
- conservative substitution of amino acid residues is exemplified for each substitutable residue, but the substitutable amino acid residues are not limited to those described below.
- Group A leucine, isoleucine, valine, alanine, methionine
- B group aspartic acid
- glutamic acid glutamic acid
- C group asparagine
- glutamine D group: lysine
- arginine arginine
- Group E Serine
- Threonine Group F: Phenylalanine, Tyrosine
- one member of the above types can be exchanged for another type of member.
- the amino acids of the above groups B, D, and E may be substituted with amino acids of other groups.
- cysteines may be deleted or substituted with other amino acids to prevent folding in the protein with tertiary structure.
- the hydropathic index of amino acids J.P.
- J.P. which is a measure of hydrophobicity / hydrophilicity for amino acids, so that the hydrophilic / hydrophobic balance is maintained or the hydrophilicity is increased to facilitate synthesis.
- Kyte and R. Doolittle, J. Mol. Biol., Vol.157, p.105-132, 1982), amino acids may be substituted.
- substitution with an amino acid having less steric hindrance than the original amino acid for example, substitution from the F group to the A, B, C, D, E group; substitution from a charged amino acid to an uncharged amino acid
- substitution from group B to group C may be performed.
- the percent identity between two amino acid sequences can be determined by visual inspection and mathematical calculation.
- the percent identity can also be determined using a computer program. Examples of such computer programs include BLAST and ClustalW. In particular, various conditions (parameters) for identity search by the BLAST program are described in Altschul et al. (Nucl. Acids. Res., 25, p. 3389-3402, 1997), NCBI and DNA Data Bank of Japan. (BDB manual, Altschul et al. NCB / NLM / NIH Bethesda, MD 20894; Altschul et al.). It can also be determined by using programs such as genetic information processing software GENETYX Ver.7 (Genetics), DNASIS Pro (Hitachi Software), Vector NTI (Infomax).
- nucleotides when “one or several nucleotides are deleted, substituted, inserted or added” in the base sequence, one or several nucleotides are deleted in the target base sequence. Or a base sequence in which another nucleotide is substituted, another nucleotide is inserted, and / or another nucleotide is added. “Several nucleotides” means, but not limited to, within 600, within 300, within 150, within 100, within 50, within 30, within 20, within 15, within 12, It means no more than 10, no more than 8, no more than 6, no more than 4, no more than 3 nucleotide acids.
- nucleotides mean 30%, preferably 25%, 20%, 15%, 10%, 5%, 3%, 2% or 1% nucleotides relative to the entire length of the base sequence. It is preferable that no frame shift occurs in the sequence encoding the amino acid due to the deletion, substitution, insertion or addition of the nucleotide.
- the percent identity of two base sequences can be determined by visual inspection and mathematical calculation.
- the percent identity can also be determined using a computer program.
- sequence comparison computer program examples include the BLASTN program (Altschul et al. (1990) available from the website of the National Library of Medicine: https://blast.ncbi.nlm.nih.gov/Blast.cgi. ) J. Mol. Biol. 215: 403-10: Version 2.2.7, WU-BLAST 2.0 algorithm or the like. Standard default parameter settings for WU-BLAST 2.0 can be those described in the following Internet site: http://blast.wustl.edu.
- under stringent conditions means to hybridize under moderately or highly stringent conditions.
- moderately stringent conditions can be easily determined by those skilled in the art having general techniques based on, for example, the length of DNA. The basic conditions are shown in Sambrook et al., Molecular Cloning: A Laboratory Manual, 3rd Edition, Chapters 6-7, Cold Spring Harbor Laboratory Press, 2001.
- moderately stringent conditions are as hybridization conditions: 1 ⁇ SSC to 6 ⁇ SSC, 42 ° C. to 55 ° C., more preferably 1 ⁇ SSC to 3 ⁇ SSC, 45 ° C. to 50 ° C.
- the most preferable conditions are 2 ⁇ SSC and 50 ° C.
- the hybridization solution contains, for example, about 50% formamide
- a temperature 5 to 15 ° C. lower than the above temperature is adopted.
- Cleaning conditions include 0.5 ⁇ SSC to 6 ⁇ SSC, 40 ° C. to 60 ° C.
- 0.05% to 0.2%, preferably about 0.1% SDS may generally be added.
- Highly stringent conditions can also be readily determined by one skilled in the art based on, for example, the length of the DNA.
- highly stringent conditions include hybridization and / or washing at higher temperatures and / or lower salt concentrations than moderately stringent conditions.
- the hybridization conditions are 0.1 ⁇ SSC to 2 ⁇ SSC, 55 ° C.
- Washing conditions include 0.2 ⁇ SSC to 2 ⁇ SSC, 50 ° C. to 68 ° C., more preferably 0.2 ⁇ SSC, 60 to 65 ° C.
- the antigen may be obtained from shrimp by separating and purifying by a combination of protein purification methods well known to those skilled in the art.
- the antigen may be obtained by expressing the antigen as a recombinant protein by a gene recombination technique well known to those skilled in the art, and separating and purifying it by a protein purification method well known to those skilled in the art.
- Protein purification methods include, for example, methods using solubility such as salting out, solvent precipitation, methods using molecular weight differences such as dialysis, ultrafiltration, gel filtration, and SDS-PAGE, ion exchange chromatography and hydroxylation. Methods that use charge such as apatite chromatography, methods that use specific affinity such as affinity chromatography, methods that use the difference in hydrophobicity such as reversed-phase high-performance liquid chromatography, isoelectric focusing, etc. For example, a method using the difference in electric points can be used.
- an expression vector containing a nucleic acid encoding an antigen is prepared, the expression vector is introduced into an appropriate host cell by gene transfer or transformation, and the host cell is transformed into a recombinant protein. Culturing under conditions suitable for expression and recovering the recombinant protein expressed in the host cell.
- a “vector” is a nucleic acid that can be used to introduce a nucleic acid linked thereto into a host cell, and an “expression vector” can direct the expression of a protein encoded by the nucleic acid introduced by the vector. It is a vector. Vectors include plasmid vectors, viral vectors and the like. One skilled in the art can select an appropriate expression vector for expression of the recombinant protein depending on the type of host cell used.
- a “host cell” is a cell that is subjected to gene transfer or transformation with a vector.
- the host cell can be appropriately selected by those skilled in the art depending on the vector to be used.
- the host cell can be derived from a prokaryote such as, for example, E. coli.
- the antigen of the present invention may contain an N-terminal methionine residue to facilitate expression of the recombinant protein in the prokaryotic cell. This N-terminal methionine can also be cleaved from the recombinant protein after expression.
- cells or silkworms derived from eukaryotes such as unicellular eukaryotes such as yeast, plant cells, animal cells (eg, human cells, monkey cells, hamster cells, rat cells, mouse cells or insect cells).
- eukaryotes such as yeast, plant cells, animal cells (eg, human cells, monkey cells, hamster cells, rat cells, mouse cells or insect cells).
- Gene transfer or transformation of an expression vector into a host cell can be appropriately performed by a method known to those skilled in the art.
- those skilled in the art can express the recombinant protein by appropriately selecting conditions suitable for the expression of the recombinant protein according to the type of the host cell and culturing the host cell.
- the host cell which expressed the recombinant protein is homogenized
- the antigen expressed as a recombinant protein can be isolate
- the antigen can also be prepared by introducing the expression vector or the synthesized double-stranded DNA, or mRNA transcribed therefrom, into a cell-free protein synthesis system and expressing it, and separating and purifying the expressed protein.
- the present invention is a method for providing an index for diagnosing shrimp allergy in a subject, comprising the following steps: (I) contacting a sample obtained from a subject with an antigen, wherein the sample is a solution containing IgE antibodies; (Ii) detecting binding between the IgE antibody and the antigen in a sample obtained from the subject; (Iii) if binding of the subject IgE antibody to the antigen is detected, an indication is provided that the subject is allergic to shrimp; Wherein the antigen is at least one of the proteins identified as the antigens (1) to (11) above.
- diagnosis generally includes simple “detection” including possibility in addition to (deterministic) diagnosis by a doctor.
- the sample obtained from the subject is a solution containing IgE antibody collected from the subject.
- solutions include, for example, blood, saliva, sputum, runny nose, urine, sweat, tears.
- the sample obtained from the subject may be subjected to a pretreatment for increasing the IgE antibody concentration in the sample before contacting with the antigen.
- Sample pretreatment may include, for example, obtaining serum or plasma from blood.
- the Fab portion that is a binding portion with an antigen may be purified.
- the step (i) is performed by contacting an antigen with IgE antibody in serum obtained from the subject.
- the IgE antibody may be an IgE antibody itself or a mast cell to which the IgE antibody is bound.
- the contact between the sample obtained from the subject and the antigen and the detection of the binding can be performed by a known method.
- a known method for example, detection by ELISA (Enzyme-Linked Immunosorvent Assay), sandwich immunoassay, immunoblotting, immunoprecipitation, or immunochromatography can be used.
- the target IgE antibody is brought into contact with and bound to the antigen, and an enzyme-labeled secondary antibody is allowed to act on the IgE antibody specifically bound to the antigen, whereby the enzyme substrate (usually color development or luminescence).
- This is a technique for detecting the binding between an antigen and a target IgE antibody by adding a reagent) and detecting the product of the enzyme reaction.
- a fluorescently labeled secondary antibody it is a method for detecting a fluorescently labeled secondary antibody.
- detection by a measuring method capable of evaluating the binding between an antigen and an IgE antibody, such as surface plasmon resonance (SPR), can also be used.
- SPR surface plasmon resonance
- Plural types of antigen-specific IgE antibodies may be mixed.
- the antigen may be in a state where the isolated antigen is immobilized on a carrier.
- ELISA sandwich immunoassay
- immunochromatography immunochromatography
- surface plasmon resonance etc.
- the sample obtained from the subject is treated with the antigen. This is done by bringing it into contact with a fixed surface.
- An isolated antigen may be obtained from shrimp by separating and purifying by a combination of protein purification methods well known to those skilled in the art, or by preparing by genetic recombination techniques. Alternatively, an antibody may be attached.
- the antigen may not be fixed to the carrier.
- flow cytometry or the like can be used in the above steps (i) and (ii), and the presence of the antigen bound by the antibody can be confirmed by laser light.
- BAT basophil activation test
- HRT histamine release test
- the antigen may be transferred from a state separated by two-dimensional electrophoresis and detected by immunoblotting.
- Two-dimensional electrophoresis is a technique for separating protein samples by performing isoelectric focusing in the first dimension and SDS-PAGE in the second dimension.
- the conditions for two-dimensional electrophoresis are not particularly limited as long as the antigens of the present invention can be separated.
- the two-dimensional electrophoresis conditions described in the item “Identification of antigen” can be used.
- electrophoresis conditions can be determined with reference to the descriptions in Patent Documents 1 to 4 described above, for example:
- (A) As a first-dimension isoelectric focusing gel, the gel length is in the range of 5 to 10 cm, the pH range of the gel is 3 to 10, and the gel pH gradient with respect to the migration direction is up to pH 5. Satisfying the relationship of “a ⁇ b” and “b> c”, where a is the gel length of b, the gel length of pH 5-7 is b, and the gel length of pH 7 or higher is c;
- (B) In the case of (A), when the total length of the gel is 1, a is in the range of 0.15 to 0.3, b is in the range of 0.4 to 0.7, and c is 0.
- a constant voltage step is performed by applying a constant voltage having a value in the range of 100 V to 600 V for each gel containing a specimen, and the change width of electrophoresis per 30 minutes of electrophoresis is Start the voltage increasing process to increase the voltage from the constant voltage after being in the range of 5 ⁇ A;
- the final voltage in the voltage raising step is within the range of 3000V to 6000V;
- the gel length in the longitudinal direction of the first-dimension isoelectric focusing gel is 5 to 10 cm, and the gel concentration at the proximal end in the migration direction of the second-dimensional electrophoresis gel is 3 to 6%;
- the gel concentration at the front end portion in the migration direction of the second-dimensional electrophoresis gel is set higher than the gel concentration at the base end portion in the migration direction;
- Two-dimensional electrophoresis can be performed under
- the antigens (1) to (11) above are antigens that specifically bind to IgE antibodies of patients who are allergic to shrimp. Thus, when binding of the subject IgE antibody to the antigen is detected, an indication that the subject is allergic to shrimp is provided.
- the present invention also provides a diagnostic kit for allergy to shrimp, comprising at least one of the antigens (1) to (11).
- the diagnostic kit of the present invention may be used in a method for providing an index for diagnosing the above-mentioned allergy to shrimp or the following diagnostic method.
- the diagnostic kit of the present invention may contain an enzyme-labeled anti-IgE antibody and a chromogenic or luminescent substrate as a substrate of the enzyme, in addition to containing at least one of the antigens (1) to (11) above. .
- a fluorescently labeled anti-IgE antibody may be used.
- the antigen may be provided in a state immobilized on a carrier.
- the diagnostic kit of the present invention may also be provided together with instructions for a procedure for diagnosis and a package containing the instructions.
- the diagnostic kit includes a companion diagnostic agent for allergy to shrimp.
- Companion diagnostic agents are used to identify patients who are expected to benefit from the drug, to identify patients who are at risk of serious side effects of the drug, or to examine the reactivity of the drug to optimize treatment with the drug. It is used for this purpose.
- the optimization of treatment includes, for example, determination of dosage volume, determination of discontinuation of administration, confirmation of which allergen component is used for immune tolerance, and the like.
- the present invention also provides a composition for diagnosing allergies to shrimp, comprising at least one of the antigens (1) to (11).
- the diagnostic composition of the present invention can be used in the following diagnostic methods.
- the diagnostic composition of the present invention may contain a pharmaceutically acceptable carrier or additive generally used with the antigen of the present invention, if necessary.
- the present invention is a method for diagnosing allergy to shrimp in a subject comprising the following steps: (I) contacting a sample obtained from a subject with an antigen; (Ii) detecting binding between the IgE antibody and the antigen in a sample obtained from the subject; (Iii) If binding between the subject IgE antibody and the antigen is detected, it is determined that the subject is allergic to shrimp; Wherein the antigen is at least one of the proteins specified as the antigens (1) to (11) above.
- steps (i) and (ii) are performed as described for each step of the method for providing an index for diagnosing allergy to shrimp.
- the present invention provides a method for diagnosing allergy to shrimp in a subject, comprising administering to the subject at least one of the antigens (1) to (11) above.
- the method may be performed in the form of a skin test characterized by applying an antigen to the skin.
- the skin test after applying the diagnostic composition on the skin, the prick test and diagnostic composition were applied to observe the skin reaction by infiltrating the skin with the antigen by making a minute wound so as not to bleed. Scratch test to observe reaction by scratching skin a little, patch test to observe reaction by applying diagnostic composition such as cream or ointment to skin, and observe reaction by administering antigen intradermally Includes forms such as an intradermal test. If a skin reaction such as swelling occurs in the skin to which the antigen is applied, the subject is diagnosed as having an allergy to shrimp.
- the amount of the antigen applied to the skin may be, for example, a dose of 100 ⁇ g or less per one time.
- the antigen protein used for the load test may be a protein that has been expressed and purified, such as pollen rice in which rice is transformed with a cedar pollen antigen gene and the antigen protein is expressed in rice. It may be expressed in raw materials and processed products.
- the above-described diagnostic composition and diagnostic kit can be used for prick tests, scratch tests, patch tests, intradermal tests, and the like.
- the present invention provides at least one of the antigens (1) to (11) described above for use in diagnosis of allergy to shrimp.
- it also includes providing at least one of the antigens (1) to (11) above mixed with a known antigen.
- the present invention provides use of at least one of the antigens (1) to (11) in the manufacture of a composition for diagnosing allergies to shrimp.
- composition / treatment method (1) The present invention provides a pharmaceutical composition comprising at least one of the antigens (1) to (11).
- the pharmaceutical composition is used to treat allergies to shrimp.
- treatment of allergy is to increase the limit amount of antigen that does not develop even if it is taken into the body, and ultimately aims at a state (remission) that does not develop with normal antigen intake. is there.
- the present invention also provides a method for treating allergy to shrimp, comprising administering at least one of the antigens (1) to (11) to a patient in need of treatment for allergy to shrimp. .
- the present invention provides at least one of the above antigens (1) to (11) for use in the treatment of allergy to shrimp. In still another aspect, the present invention provides use of at least one of the antigens (1) to (11) above for the manufacture of a therapeutic agent for allergy to shrimp.
- desensitization therapy is often performed with the goal of inducing immune tolerance by administering an antigen to a patient.
- At least one of the above antigens (1) to (11) can be used as an active ingredient for desensitization therapy against allergy to shrimp.
- the antigen protein used for the desensitization therapy may be an expression-purified protein.
- a pollen rice obtained by transforming a rice cedar pollen antigen gene into rice and expressing the antigen protein in rice. Thus, it may be expressed in the raw material / processed product.
- the pharmaceutical composition of the present invention can be administered by a usual administration route.
- Common routes of administration include, for example, oral, sublingual, transdermal, intradermal, subcutaneous, intravascular, intranasal, intramuscular, intraperitoneal, and rectal administration.
- the pharmaceutical composition of the present invention comprises a pharmaceutically acceptable adjuvant, excipient, or various additives (for example, a stabilizer, a solubilizing agent, milk, etc.) that are generally used together with the antigen of the present invention as necessary.
- a suspending agent, a buffering agent, a preservative, a coloring agent, etc. can be used as a pharmaceutical composition added by a conventional method.
- the dosage form of the pharmaceutical composition can be appropriately selected by those skilled in the art depending on the administration route. For example, it may be in the form of tablets, capsules, troches, sublingual tablets, injections, intranasal sprays, poultices, solutions, creams, lotions, suppositories, and the like.
- the dosage, frequency and / or administration period of the pharmaceutical composition of the present invention can be appropriately selected by a doctor according to the administration route, symptoms, patient characteristics such as age and weight, and the like. For example, in the case of an adult, it may be administered at a dose of 100 ⁇ g or less per dose.
- the dosing interval may be, for example, about once a week, once a week, twice a month, or about once every three months.
- the administration period can be, for example, several weeks to several years. It may be an administration method in which the dosage is increased stepwise within the administration period.
- Tester composition (1) The present invention provides a tester composition comprising an antibody against at least one of the antigens (1) to (11).
- the antibody can be prepared by a conventional method. For example, it may be prepared by immunizing a mammal such as a rabbit with the antigens (1) to (11).
- the antibody may be an Ig antibody, a polyclonal antibody, a monoclonal antibody, or an antigen-binding fragment thereof (eg, Fab, F (ab ′) 2 , Fab ′).
- the antibody may be provided in a form bound to a carrier.
- the carrier is not particularly limited as long as it is a carrier that can be used for detecting the binding between the antibody and the antigen. Any carrier known to those skilled in the art can be utilized.
- Examples of the method for examining the presence or absence of an antigen include the following methods. -The tester composition containing the prepared Ig antibody is brought into contact with the sample obtained from the raw material / processed product, etc., and the binding between the Ig antibody and the antigen in the sample is detected using, for example, ELISA, and the Ig antibody A method for determining that a target raw material / processed product contains the antigen when binding between the antigen and the antigen is detected. -A method in which raw materials and processed products are soaked in filter paper and the antibody solution is reacted so as to detect the antigen contained therein.
- a tester composition for determining the presence or absence of an allergic antigen to shrimp in an object comprising a primer having a base sequence complementary to at least a part of the base sequence represented by 519, 540 or 548 Including things.
- Non-limiting examples of the primer include, for example, SEQ ID NOs: 1, 44, 86, 116, 140, 145, 160, 178, 229, 275, 299, 305, 361, 380, 398, 413, 420, 454, 480, Preferably complementary to 12 residues, 15 bases, 20 bases, 25 bases of the sequence at the 3 ′ end part or the central part of at least one part of the base sequence represented by 485, 519, 540 or 548 It has a typical base sequence. In particular, when targeting mRNA, it has a complementary primer of poly A tail.
- the tester composition comprising the above primer further comprises SEQ ID NOs: 1, 44, 86, 116, 140, 145, 160, 178, 229, 275, 299, 305, 361, 380, 398, 413, 420. 454, 480, 485, 519, 540 or a base sequence of at least one sequence of the base sequence represented by 548, preferably a base sequence consisting of 12 bases, 15 bases, 20 bases, 25 bases An included primer may be included.
- cDNA was amplified by PCR (PolymerasemerChain Reaction) including RT-PCR (Reverse Transcription-Polymerase Chain Reaction)
- the sequence of the cDNA is SEQ ID NO: 1, 44, 86, 116, 140, 145, 160, 178, 229, 275, 299, 305, 361, 380, 398, 413, 420, 454, 480, 485, 519, 540 or By comparing with 548, the presence or absence of the antigen is determined.
- the method of amplification by PCR include the RACE (Rapid Amplification of cDNA End) method.
- the amino acid sequence encoded by the cDNA is SEQ ID NO: 2, 45, 87, 117, 141, 146, 161.
- 179, 230, 276, 300, 306, 362, 381, 399, 414, 421, 455, 481, 486, 520, 541 or 549 have an identity of 70% or more, preferably 80, 90, When it is 95, 98, 99% or more, it is determined that the antigen is present.
- the above tester composition is used for examining the presence or absence of an antigen in an object such as a food (shrimp) or a food production line.
- the tester composition may be used for quality inspection of production lines and pre-shipment products by the manufacturer, or for checking the presence or absence of antigens in the target raw material / processed product by the eater himself.
- the present invention relates to the antigen of (1) to (11) above, which comprises contacting an antibody against at least one of the antigens (1) to (11) with a raw material / processed product (including a liquid). Includes a method for determining the presence or absence of a target substance.
- the raw material may be a food material, a cosmetic raw material, a pharmaceutical raw material, or the like.
- the processed product may be an edible processed product, and may be a cosmetic product, a pharmaceutical product, or the like.
- the antibody a method for producing the antibody, a method for bringing the antibody into contact with the raw material / processed product, a binding between the antibody and the antigen, and the like are as described above in “Tester composition (1)”.
- the present invention provides a shrimp or a shrimp processed product, wherein at least one of the antigens (1) to (11) is removed or reduced.
- the method for removing or reducing the antigen of the present invention in shrimp or shrimp processed products is not limited.
- the removal or reduction of the antigen may be performed by any method as long as the antigen of the present invention is removed or reduced.
- shrimp in which the expression of the antigen of the present invention has been modified may be prepared using a gene modification technique.
- any technique known to those skilled in the art can be used.
- Oishi, et al. (Scientific Reports, Vol.6, Article number: 23980, 2016, doi: 10.1038 / srep23980) applies CRISPER / Cas9, a genome editing technology, to primordial germ cells in chickens. It describes obtaining genetically deleted individuals.
- Shrimp from which the antigen of the present invention has been removed may be obtained using a similar technique.
- shrimp with reduced antigens of the present invention may be obtained by mating by artificial insemination with shrimp that does not contain or contain little antigen.
- Artificial mating of shrimp is carried out by the National Fisheries Research and Education Agency, National Institute of Fisheries Science and Technology (“Maturation of Eggs, Oviposition and Egg Collection Technology” (Takuji Okumura and Katsuki Mito), Aichi Prefectural Fisheries Promotion Fund, 2014) Etc., and can be carried out by conventional methods.
- the processed shrimp from which the antigen of the present invention has been removed or reduced may be a processed product made from shrimp from which the antigen of the present invention has been removed or reduced.
- a treatment for removing or reducing the antigen of the present invention is performed before or after the preparation of a shrimp processed product.
- protein components in raw materials and processed products such as high-pressure treatment and elution with a neutral salt solution, and high-temperature steam are removed.
- the present invention relates to a method for producing shrimp or a shrimp processed product from which antigen has been removed or reduced, comprising the step of confirming that the antigen has been removed or reduced in the process of manufacturing the processed product, wherein Provided is the production method, wherein the antigen is at least one of the antigens (1) to (11).
- the step of confirming that the antigen has been removed or reduced during the production of the shrimp or processed shrimp product from which the antigen has been removed or reduced is carried out by the method described in the above item “Tester (1)”. You may carry out by checking the presence or absence.
- Antigen Epitope For the antigen and arginine kinase specified as shown in Example 1-3, as shown in Example 4, the epitope and amino acids important for binding to IgE antibodies of allergic patients within the epitope Identified.
- the present invention includes, or consists of, each amino acid sequence of SEQ ID NOs: 558 to 984 shown in Table 3 below as a polypeptide containing an amino acid sequence that specifically binds to an IgE antibody of an allergic patient.
- SEQ ID NOs: 558 to 984 shown in Table 3 below as a polypeptide containing an amino acid sequence that specifically binds to an IgE antibody of an allergic patient.
- To (E50) are provided.
- Each of (E1) to (E50) is an amino acid sequence that binds to an IgE antibody derived from the protein described in “Derivation” in Table 3 (hereinafter sometimes referred to as “epitope”).
- the polypeptide containing the amino acid sequence of (E1)-(E50) may be prepared by a chemical synthesis method such as solid phase synthesis of the peptide.
- a polypeptide containing an epitope may be obtained by expressing it as a recombinant polypeptide by a gene recombination technique well known to those skilled in the art, and separating and producing it by a protein production method well known to those skilled in the art.
- Polypeptides may be linked in combination of two or more, or may be those in which one epitope is linked repeatedly. In that case, generally, the binding property with the Ig antibody is improved.
- the length of the polypeptide containing the amino acid sequence (E1)-(E50) is not particularly limited.
- the length of the polypeptide comprising the amino acid sequence of (E1)-(E50) is 500 amino acids or less, 300 amino acids or less, 200 amino acids or less, 100 amino acids or less, 50 amino acids or less, 30 amino acids or less, 20 amino acids.
- it may be 15 amino acids or less, 10 amino acids or less, or 5 amino acids or less.
- the length of the amino acid sequence portion is 1000 amino acids or less, It may be 750 amino acids or less, 500 amino acids or less, 250 amino acids or less, 100 amino acids or less, 75 amino acids or less, 50 amino acids or less, 30 amino acids or less, 15 amino acids or less, 10 amino acids or less, or 5 amino acids or less.
- the number of amino acid residues described in a preferred embodiment as the length of the polypeptide is the total length of the sequences before and after the spacer (excluding the spacer).
- SEQ ID NOs: 558 to 984 described in Table 3 SEQ ID NOs: 558, 566, 582, 586, 594, 599, 614, 624, 634, 640, 654 described in “Common 15 residue sequences” in Table 3 , 671, 672, 678, 681, 686, 691, 697, 704, 705, 708, 717, 725, 729, 741, 750, 752, 765, 770, 778, 788, 793, 810, 817, 826, 833 , 847, 858, 865, 879, 881, 892, 908, 912, 915, 917, 928, 935, 939, and 943, (E1)-(E50 ) Common 15 amino acids identified as epitopes that bind to IgE antibodies at each epitope It is a residue sequence.
- the present invention is a polypeptide comprising or consisting of these amino acid sequences.
- the epitope sequence contained in the polypeptide of the present invention can be the entire common epitope 15 amino acid residues or a part thereof.
- Epitope sequence is 4 amino acid residues or more, 5 amino acid residues or more, 6 amino acid residues or more, 7 amino acid residues or more, 8 amino acid residues or more, 9 amino acid residues or more, 10 amino acid residues or more, 11 amino acid residues These are 12 amino acid residues or more, 13 amino acid residues or more, or 14 amino acid residues or more.
- a polypeptide consisting of 4 amino acid residues for example, SEQ ID NOs: 587, 593, 595, 636, 655, 662, 663, 679, 707, 726, 727, 794, 880, etc.
- SEQ ID NOs: 587, 593, 595, 636, 655, 662, 663, 679, 707, 726, 727, 794, 880, etc. was confirmed. Furthermore, epitope cross-reactivity was confirmed in many cases of 5 amino acid residues or more. Therefore, if at least 4 amino acid residues are present, it is useful as an epitope sequence for detecting cross-reactivity with various antigens.
- SEQ ID NOs: 558 to 984 “a common 15 residue sequence”, ie, SEQ ID NOs: 558, 566, 582, 586, 594, 599, 614, 624, 634, 640, 654, 671, 672, 678, 681 , 686, 691, 697, 704, 705, 708, 717, 725, 729, 741, 750, 752, 765, 770, 778, 788, 793, 810, 817, 826, 833, 847, 858, 865, 879 , 881, 892, 908, 912, 915, 917, 928, 935, 939 and 943, polypeptides comprising these amino acid sequences or consisting of these amino acid sequences are also included in the present invention.
- the “preferred” sequence is a shorter partial sequence that can function as an epitope in the “common 15-residue sequence”.
- a “key” sequence refers to a sequence that appears to be particularly important among “common 15 residue sequences” or “key” sequences.
- the amino acid sequence indicated by “X” is binding to IgE antibody even if it is changed to any alanine (glycine when the original amino acid residue is alanine) by alanine glycine scanning. Is an amino acid residue that has been confirmed to remain.
- X is any amino acid residue, preferably alanine (or glycine).
- an amino acid residue that was confirmed to remain binding to IgE antibody by alanine glycine scan was not found. Is the case.
- amino acid residue represented by X in SEQ ID NOs: 560, 562, 564, and 565 was confirmed to remain binding to IgE antibody even if it was changed It is. Therefore, in SEQ ID NOs: 558 to 565, one or more amino acid residues corresponding to the 4, 5, 7, 8, 10, 11, 12, 13, 14, 15th amino acid residues of SEQ ID NO: 558 are arbitrary.
- the amino acid residue may be substituted.
- one or a plurality of amino acid residues represented by X in the “key sequence” corresponding to each “preferred sequence” may be substituted with any amino acid residue. .
- the corresponding key sequence in SEQ ID NO: 559 which is a preferred sequence, is SEQ ID NO: 560.
- the 2, 6, 7, 8, 9th amino acid residues which are X in SEQ ID NO: 560 (the 8, 12, 13, 14, 15th amino acid residues of SEQ ID NO: 558) Is an amino acid residue that can be optionally substituted.
- the corresponding key sequence in SEQ ID NO: 563 is a preferred sequence is SEQ ID NO: 564.
- amino acid residues 1, 2, 4, 5, 7, and 8 that are X in SEQ ID NO: 564 are amino acid residues that can be optionally substituted.
- amino acid residues 1, 2, 4, 5, 7, and 8 that are X in SEQ ID NO: 564 are amino acid residues that can be optionally substituted.
- the number of amino acid residues that may be substituted is not limited, and is preferably 6 or less, 5 or less, 4 or less, 3 or less, 2 or less, or 1 or less.
- Table 1 summarizes information on the epitopes (E1)-(E50).
- the polypeptide of the present invention includes a polypeptide comprising or consisting of these amino acid sequences.
- the IgE antibody in the serum of each allergic patient is 1.05 times or more, 1.10 times or more, 1.15 times higher than the IgE antibody in the serum of non-allergic subjects against the polypeptide of the present invention. It exhibits a binding property that is twice or more, 1.20 times or more, or 1.25 times or more.
- polypeptide comprising the amino acid sequence of (E1) to (E50) includes a polypeptide comprising or consisting of each amino acid sequence of SEQ ID NOs: 558 to 984, as described above. Any embodiment in which amino acid residues are substituted is included. “Including each amino acid sequence of SEQ ID NO: 558-984” means binding of each amino acid sequence of SEQ ID NO: 558-984 (including the above-mentioned substituted embodiments) to an IgE antibody (ie, as these epitopes) It means that any other amino acid sequence may be included as long as it does not affect the function).
- the present invention provides a method for providing an index for diagnosing an allergy in a subject, comprising the following steps: (I) contacting a sample obtained from a subject with an antigen, wherein the sample is a solution containing IgE antibodies; (Ii) detecting binding between the IgE antibody and the antigen in a sample obtained from the subject; (Iii) if binding of the subject IgE antibody to the antigen is detected, an indication is provided that the subject is allergic; Wherein the antigen is a polypeptide that is at least one of the polypeptides comprising the amino acid sequence of (E1)-(E50), or a polypeptide comprising two or more amino acid sequences of (E1)-(E50). The above method is provided wherein the peptide is a polypeptide linked via or without a spacer.
- polypeptide that is at least one of the polypeptides comprising the amino acid sequence of (E1)-(E50) above, or a polypeptide comprising two or more amino acid sequences of (E1)-(E50) described above via a spacer
- the polypeptide linked without intervention may be referred to as “antigen containing (E1)-(E50)” in the present specification.
- the type of spacer is not particularly limited, and spacers commonly used by those skilled in the art for linking a plurality of peptides can be used.
- the spacer may be, for example, a polypeptide such as a hydrocarbon chain such as Acp (6) -OH or an amino acid chain.
- the number of polypeptides to be linked is not particularly limited. In one embodiment, the number is 2 or more, 3 or more, 4 or more, 5 or more, 6 or more, 8 or more, 10 or more, 15 or more. In one aspect, 30 or less, 20 or less. 15 or less. 10 or less, 8 or less, 6 or less, 5 or less, 3 or less, 2 or less.
- polypeptides containing the amino acid sequences (E1) to (E50) above the same one may be repeated or a plurality of different ones may be linked. Thus, even when a plurality of polypeptides containing the amino acid sequences (E1) to (E50) are linked, the polypeptide of the present invention can be applied to the method, kit, and composition of the present invention.
- the sample obtained from the subject is as described in the above item “Diagnostic kit / diagnostic method (1)”.
- Detection of the contact between the sample obtained from the subject and the polypeptide and the binding thereof can be performed by a known method described in the above item “Diagnostic Kit / Diagnostic Method (1)”, for example, ELISA (Enzyme-Linked Immunosorvent Assay). , Sandwich immunoassay, immunoblotting, immunoprecipitation, immunochromatography, and the like.
- the polypeptide containing the amino acid sequence (E1)-(E50) may be in a state of being immobilized on a carrier.
- ELISA sandwich immunoassay, immunochromatography, surface plasmon resonance, etc.
- the sample obtained from the subject is subjected to the above (E1).
- -It is carried out by bringing the polypeptide comprising the amino acid sequence of (E50) into contact with the fixed surface.
- the target IgE antibody may be immobilized on a carrier, and the binding to the polypeptide containing the amino acid sequence (E1)-(E50) may be detected by the above-described method.
- a tag such as a spacer or biotin may be attached to the N-terminus or C-terminus of the polypeptide for binding to the carrier, for providing a space with the carrier, or for facilitating contact of the antibody with the polypeptide.
- the carrier preferably has avidin.
- the polypeptide containing the amino acid sequence (E1)-(E50) may not be immobilized on a carrier.
- flow cytometry or the like can be used in the above steps (i) and (ii), and the presence of the polypeptide containing the amino acid sequence of (E1)-(E50) to which the IgE antibody is bound by laser light is confirmed. it can.
- This method is, for example, a method for detecting a surface antigen CD203c that appears when a basophil is activated by contact with a polypeptide comprising the amino acid sequence of (E1)-(E50) described above. BAT). Further, there is a histamine release test (HRT) for examining whether or not histamine is released by further contacting a polypeptide containing the amino acid sequence of (E1)-(E50) with a blood cell in a sample.
- HRT histamine release test
- the polypeptide containing the amino acid sequence of (E1)-(E50) is an antigen that specifically binds to an IgE antibody of an allergic patient. Therefore, when the binding between the subject IgE antibody and the antigen is detected, an indication that the subject is allergic is provided, including cross-linking.
- sequences may be added before and after the epitope to increase the sequence length. In such a case, if the binding between the IgE antibody of interest and the amino acid sequence of (E1)-(E50) is detected, an indication that the subject is allergic, including crossover properties, is provided. Therefore, anything may be added before and after the amino acid sequence of the above (E1)-(E50) which is an epitope.
- the present invention also provides an allergy diagnostic kit comprising at least one of the polypeptides comprising the amino acid sequences (E1) to (E50).
- the diagnostic kit of the present invention may be used in a method for providing an index for diagnosing the above-mentioned allergy or the following diagnostic method.
- the diagnostic kit of the present invention comprises at least one of the polypeptides comprising the amino acid sequences (E1) to (E50) above, an enzyme-labeled anti-IgE antibody, and a chromogenic substrate or luminescent substrate serving as a substrate for the enzyme. May be included. Alternatively, a fluorescently labeled anti-IgE antibody may be used.
- the polypeptide containing the amino acid sequence (E1)-(E50) may be provided in a state immobilized on a carrier.
- the diagnostic kit of the present invention may also be provided together with instructions for a procedure for diagnosis and a package containing the instructions.
- the diagnostic kit includes a companion diagnostic for allergies.
- Companion diagnostic agents are used to identify patients who are expected to benefit from the drug, to identify patients who are at risk of serious side effects of the drug, or to examine the reactivity of the drug to optimize treatment with the drug. It is used for this purpose.
- the optimization of treatment includes, for example, determination of dosage volume, determination of discontinuation of administration, confirmation of which allergen component is used for immune tolerance, and the like.
- the present invention also provides a composition for diagnosing allergy comprising at least one of the polypeptides comprising the amino acid sequences (E1) to (E50).
- the diagnostic composition of the present invention can be used in the following diagnostic methods.
- the diagnostic composition of the present invention may contain a pharmaceutically acceptable carrier or additive generally used with the polypeptide of the present invention, if necessary.
- the invention is a method of diagnosing an allergy in a subject comprising the following steps: (I) contacting a sample obtained from a subject with an antigen; (Ii) detecting binding between the IgE antibody and the antigen in a sample obtained from the subject; (Iii) If binding between the subject IgE antibody and the antigen is detected, it is determined that the subject is allergic; Wherein the antigen is at least one polypeptide identified as a polypeptide comprising the amino acid sequence of (E1)-(E50) above.
- steps (i) and (ii) are performed as described for each step of the method for providing an index for diagnosing allergy.
- the present invention relates to a method for diagnosing allergy in a subject, which comprises administering to the subject at least one of the polypeptides comprising the amino acid sequence of (E1)-(E50) above.
- the method may be performed in the form of a skin test characterized by applying a polypeptide containing the amino acid sequence (E1)-(E50) to the skin.
- the skin containing the amino acid sequence (E1)-(E50) is penetrated into the skin by making a slight scratch so as not to bleed.
- a prick test for observing the reaction a scratch test for observing the reaction by scratching the skin a little after applying the diagnostic composition
- examples include a test, an intradermal test in which a polypeptide containing the amino acid sequence of (E1)-(E50) is administered intradermally and the reaction is observed, and the like.
- the amount of the polypeptide applied to the skin may be, for example, a dose of 100 ⁇ g or less per one time.
- the polypeptide used for the oral challenge test may be an expression-purified polypeptide, for example, a pollen rice obtained by transforming a rice cedar pollen antigen gene into rice and expressing the polypeptide in rice. Thus, it may be expressed in the raw material / processed product.
- the above-described diagnostic composition and diagnostic kit can be used for prick tests, scratch tests, patch tests, intradermal tests, and the like.
- the present invention provides at least one of the polypeptides comprising the amino acid sequences (E1) to (E50) described above for use in diagnosis of allergy.
- the present invention provides the use of at least one polypeptide comprising the amino acid sequence of (E1)-(E50) above in the manufacture of a diagnostic agent for allergy.
- the allergy to be diagnosed may be an allergy to a polypeptide containing the amino acid sequence (E1)-(E50) above. That is, the diagnosis of allergy including detection of allergy and provision of a diagnostic index diagnoses allergy including not only allergy to a polypeptide containing the single amino acid sequence of (E1)-(E50) but also cross-ability. Can be a thing.
- composition / treatment method (2) The present invention provides a pharmaceutical composition comprising at least one polypeptide comprising the amino acid sequence of (E1)-(E50).
- the above pharmaceutical composition is used to treat allergies.
- the treatment of allergy is to increase the limit amount of a polypeptide that does not develop even if it is taken into the body, and ultimately aims at a state (remission) that does not develop with a normal polypeptide intake.
- the present invention also provides a method for treating allergy, comprising administering at least one of the polypeptides comprising the amino acid sequences (E1) to (E50) to a patient in need of treatment for allergy. To do.
- the present invention provides at least one polypeptide comprising the amino acid sequence of (E1)-(E50) above for use in the treatment of allergy. In yet another aspect, the present invention provides at least one use of a polypeptide comprising the amino acid sequence of (E1)-(E50) above for the manufacture of a therapeutic agent for allergy.
- desensitization therapy is often performed with the goal of inducing immune tolerance by administering an antigen to a patient.
- At least one of the polypeptides containing the amino acid sequences (E1) to (E50) can be used as an active ingredient for desensitization therapy for allergy.
- the antigen used for the desensitization therapy may be an expression-purified polypeptide, for example, an antigen expressed in a raw material / processed product such as pollen rice.
- the above-mentioned “Pharmaceutical composition / treatment method (1)” is used. It may be as described in the item.
- the dose in the case of using the polypeptide containing the amino acid sequence of (E1)-(E50) may be, for example, 100 ⁇ g or less per dose in the case of an adult.
- the allergy to be treated may be an allergy to a polypeptide containing the amino acid sequence (E1)-(E50) above. That is, the treatment of allergy can treat not only allergy to a polypeptide containing a single amino acid sequence of the above (E1)-(E50), but also allergy including crossing.
- Tester composition (2) The present invention provides a tester composition comprising an antibody against at least one of the polypeptides comprising the amino acid sequences (E1) to (E50).
- the antibody can be prepared by a conventional method. For example, it may be produced by immunizing a mammal such as a rabbit with a polypeptide containing the amino acid sequence of (E1)-(E50).
- the antibody may be an Ig antibody, a polyclonal antibody, a monoclonal antibody, or an antigen-binding fragment thereof (eg, Fab, F (ab ′) 2 , Fab ′).
- the antibody may be provided in a form bound to a carrier.
- the carrier is not particularly limited as long as it is a carrier that can be used for detecting the binding between the antibody and the polypeptide comprising the amino acid sequence (E1)-(E50). Any carrier known to those skilled in the art can be utilized.
- an antibody against a polypeptide comprising the amino acid sequence of (E1)-(E50) is an antibody against a polypeptide having the same amino acid sequence as the epitope described in the item “Epitope of antigen” and the important amino acid. Preferably there is. Thereby, it can be set as the tester composition which can be detected including a crossing property.
- Examples of the method for examining the presence or absence of the polypeptide containing the amino acid sequence (E1) to (E50) include the following methods.
- -A tester composition containing the prepared antibody is brought into contact with a sample obtained from a raw material / processed product, etc., and the amino acid sequence containing the antibody and the above (E1)-(E50) in the sample using, for example, ELISA
- the amino acid sequence of the target raw material / processed product is detected.
- the method of judging that the polypeptide containing is contained. (In the “method for examining the presence or absence of polypeptide”, the polypeptide is removed or reduced when the binding between the antibody and the polypeptide containing the amino acid sequence of (E1)-(E50) is decreased.
- the amino acid sequence of (E1)-(E50) above for allergy in a subject comprising a primer corresponding to a polypeptide whose epitope and important amino acid have the same amino acid sequence
- the primer may be designed to include, for example, a part of the base sequence of the nucleic acid encoding the amino acid sequence specified in (E1) to (E50) or a complementary strand thereof. .
- the primer is a nucleic acid encoding a protein comprising a polypeptide having the same amino acid sequence as the epitope that is the amino acid sequence specified in (E1) to (E50) above, and the epitope and the important amino acid.
- Examples of such a primer include SEQ ID NOs: 1, 44, 86, 116, 140, 145, 160, 178, 229, 275, 299, 305, 361, 380, 398, 413, 420, 454, 480, 485, 519.
- the position of the epitope in the full length sequence of the antigen is as specified in Table 3 of Example 4 below.
- DNA or mRNA obtained from a sample is used as a template, the primer is used, DNA is amplified by PCR (Polymerase Chain Reaction) including RT-PCR, and the amplified DNA sequence (E1)-( By determining whether or not the nucleic acid encoding the amino acid sequence specified in E50) is included, the presence or absence of the antigen including (E1) to (E50) is determined.
- PCR Polymerase Chain Reaction
- E1-(E50) By determining whether or not the nucleic acid encoding the amino acid sequence specified in E50) is included, the presence or absence of the antigen including (E1) to (E50) is determined.
- Examples of a method for amplifying mRNA by PCR include the RACE method. When one of the amino acid sequences encoded by the three possible open reading frames in the amplified DNA contains the amino acid sequence specified in the above (E1)-(E50), it is determined that it has an antigen. If the DNA is not amplified, it is determined that
- the above tester composition is used for examining the presence or absence of a polypeptide containing the amino acid sequence (E1)-(E50) in an object such as a raw material or a processed product production line.
- the raw materials may be food materials, cosmetic raw materials, pharmaceutical raw materials and the like.
- the processed product may be an edible processed product, and may be a cosmetic product, a pharmaceutical product, or the like.
- the tester composition may be used for searching for biological species contained as a raw material, or may be used for quality inspection of a production line by a manufacturer and a product before shipment. It may be used for checking whether the processed product contains an antigen.
- the present invention includes a method for determining the presence or absence of a polypeptide comprising the amino acid sequence of (E1)-(E50) in a raw material / processed product.
- the method includes detecting a polypeptide having the whole or part of the amino acid sequence of the polypeptide containing the amino acid sequence of (E1)-(E50) in the raw material / processed product.
- the method of the present invention comprises contacting an antibody against at least one of the polypeptides comprising the amino acid sequence of (E1)-(E50) with a raw material / processed product (including a liquid). Determining the presence or absence of the polypeptide comprising the amino acid sequence of (E1) to (E50) in the target substance.
- the method for determining the presence or absence of the antigen includes an embodiment in which an epitope portion of a polypeptide containing the amino acid sequence (E1)-(E50) contained in the antigen is detected.
- the “epept portion” is preferably 4 amino acid residues or more, 6 amino acid residues or more, or 8 amino acid residues or more.
- the detection of the part of the epitope can be performed by a known method for detecting a specific amino acid sequence of a part of the polypeptide. For example, whether or not the peak of any epitope peptide has been reduced by the antigen removal treatment by cleaving the protein of the target raw material / processed product (eg food) with a digestive enzyme for antigen removal treatment and separating it with HPLC etc.
- the method etc. which measure can be considered.
- an antibody that recognizes a portion of the polypeptide containing the amino acid sequence of (E1)-(E50) in the target substance of the antigen containing the polypeptide containing the amino acid sequence of (E1)-(E50) The presence or absence may be determined.
- Allergen removal raw materials (2) The present invention provides a raw material or processed product in which at least one of the polypeptides comprising the amino acid sequences (E1) to (E50) is removed or reduced.
- the method for removing or reducing the antigen of the present invention in the raw material or processed product is not limited.
- the removal or reduction of the antigen may be performed by any method as long as the polypeptide containing the amino acid sequence of (E1)-(E50) is removed or reduced.
- the described technique may be used.
- the removal or reduction of at least one of the polypeptides comprising the amino acid sequence of (E1)-(E50) above may be achieved by removing or reducing the entire amino acid sequence, or from the antigen protein.
- the amino acid sequence portion of (E1)-(E50) may be cleaved or removed. “Removed” includes deletion and modification of all or part of the sequence portion specified in (E1)-(E50) above.
- the raw material from which the polypeptide containing the amino acid sequence of (E1)-(E50) is removed or reduced is expressed using the gene modification technique to express the polypeptide containing the amino acid sequence of (E1)-(E50). You may prepare the raw material which is no longer damaged.
- the genetic modification knockout technique any technique known to those skilled in the art can be used.
- the processed product from which the polypeptide containing the amino acid sequence of (E1)-(E50) is removed or reduced has the amino acid sequence of (E1)-(E50) as in the case of powdered milk using a protein digest as a raw material. It may be a processed product using a raw material from which the polypeptide contained is removed or reduced. When ordinary raw materials are used, a treatment for removing or reducing the polypeptide containing the amino acid sequence (E1) to (E50) is performed before, during or after the preparation of the processed product. “Preparation of processed product” means preparation of a processed food product (eg, shrimp processed product such as fried shrimp) from, for example, a food raw material (eg shrimp).
- a processed food product eg, shrimp processed product such as fried shrimp
- the method described in the above item “Allergen-removed foods” may be used.
- the method for cleaving the polypeptide containing the amino acid sequence of (E1)-(E50) include a method of cleaving with a specific digestive enzyme.
- the present invention relates to a method for producing a processed product from which at least one of the polypeptides comprising the amino acid sequence of (E1)-(E50) has been removed or reduced, wherein the antigen is removed or reduced in the process of producing the processed product.
- the manufacturing method including the step of confirming that
- the polypeptide containing the amino acid sequence of (E1)-(E50) is removed or reduced means that the polypeptide containing the amino acid sequence of (E1)-(E50) (E1)-(E50) It means that at least one of the peptides has been removed or reduced, or the sequence portion specified by (E1)-(E50) above has been cleaved or removed from the antigen.
- the method for confirming that the polypeptide is removed or reduced during the manufacturing process of the processed product is not particularly limited, and at least one of the polypeptides containing the amino acid sequences (E1) to (E50) can be detected. Any method may be used. For example, due to the binding between a sample containing a material produced during the manufacturing process of the processed product and an antibody against at least one of the polypeptides containing the amino acid sequences (E1) to (E50), the poly The presence or absence of the peptide may be confirmed. Details of such a method are as described in the above item “Diagnostic Kit / Diagnostic Method (2)”.
- the “target IgE antibody” in the item “diagnostic kit / diagnostic method (2)” is defined as “at least one polypeptide comprising the amino acid sequence of (E1)-(E50)”.
- “Antibody” and “antigen” and “polypeptide” in the above item “diagnostic kit / diagnostic method (2)” are replaced with “sample containing materials generated during the manufacturing process of processed products” and “diagnosis kit / diagnostic”
- the method described in the item “Method (2)” can be used to confirm that the antigen is removed or reduced in the process of manufacturing the processed product.
- the tester composition described in the item “Tester composition (2)” can also be used.
- Example 1 Confirmation of protein pattern Using the following two-dimensional electrophoresis method, proteins contained in shrimp (Banamei shrimp, black tiger shrimp and prawn) were examined.
- precipitation was performed twice using a 2D-CleanUP kit (manufactured by GE).
- TCA trichloroacetic acid
- TCA precipitation was recovered.
- acetone was added to the recovered TCA precipitate to perform precipitation, and the precipitate (specimen) obtained by the operation was recovered.
- GE DeStreak Rehydration Solution
- GE DeStreak Rehydration Solution
- a specimen solution for second-order isoelectric focusing (swelling specimen solution) was used.
- DeStreak Rehyd The composition of ration Solution is as follows. 7M thiourea 2M urea 4% (w / v) CHAPS 0.5% (v / v) IPG buffer; appropriate amount of BPB (bromophenol blue) manufactured by GE
- First-order isoelectric focusing of the first-dimension isoelectric focusing gel The first-dimension isoelectric focusing gel (GE: IPG gel Immobiline Drystrip (pH 3-10NL)) described above
- the sample solution for electrophoresis was immersed in 140 ⁇ l and allowed to permeate overnight at room temperature.
- IPGphor manufactured by GE was used as an electrophoresis apparatus.
- the electrophoresis tray was filled with silicon oil.
- a filter paper moistened with water was provided at both ends of the gel infiltrated with the specimen, and the gel was set on an electrophoresis tray so as to be covered with silicone oil, and an electrode was set with the filter paper sandwiched between the gel and the gel.
- the upper limit of the current value of the isoelectric focusing device is set to 75 ⁇ A per gel, and the voltage program is set to (1) a constant voltage step to 750 Vhr at a constant voltage of 300 V (current for 30 minutes before the end of the step) (2) The voltage was gradually increased to 1000V over 300Vhr), (3) the voltage was gradually increased to 5000V over 4500Vhr, and (4) the total Vhr at a constant voltage of 5000V. The first-dimension isoelectric focusing was performed until the value reached 12000.
- the composition of the equilibration buffer containing the alkylating agent is as follows. 100 mM Tris-HCl (pH 8.0) 6M urea 30% (v / v) glycerol 2% (w / v) SDS 2.5% (w / v) iodoacetamide
- Second dimension SDS-PAGE In this example, XCell SureLock Mini-Cell manufactured by life technologies was used as an electrophoresis apparatus. As the gel for the second dimension electrophoresis, NuPAGE 4-12% Bis-Tris Gels manufactured by life technologies was used. In addition, an electrophoresis buffer having the following composition was prepared and used. 50 mM MOPS 50 mM Tris base 0.1% (w / v) SDS 1 mM EDTA
- an agarose solution for adhesion in which 0.5% (w / v) agarose S (manufactured by Nippon Gene) and an appropriate amount of BPB (bromophenol blue) were dissolved in the electrophoresis buffer was used.
- the sealed container to be used was thoroughly washed with 98% (v / v) ethanol in advance.
- Remove the gel for the second dimensional electrophoresis after electrophoresis from the SDS-PAGE instrument, place it in a washed sealed container, and immerse it in an aqueous solution containing 50% (v / v) methanol and 7% (v / v) acetic acid for 30 minutes was performed twice. Thereafter, the aqueous solution was replaced with water and immersed for 10 minutes.
- the 2D gel was immersed in 40 ml of SYPRO Ruby and shaken overnight at room temperature.
- Example 2 Confirmation of antigen by immunoblot Antigen confirmation by immunoblot was carried out by performing the procedure described in Example 1 for “Baname shrimp”, “Black tiger” and “Kuruma shrimp” until “second-dimensional SDS-PAGE”. Were performed by performing the operations of “transfer to membrane”, “immunoblot” and “analysis”.
- Transfer to the membrane Transfer to the membrane was performed using the following transfer device and transfer buffer.
- Transcriptor XCell SureLock Mini-Cell and XCell II Blot Module (life technologies)
- Transfer buffer NuPAGE transfer buffer (x20) (life technologies) was diluted 20 times with milliQ water and used.
- the protein in the two-dimensional electrophoresis gel was transferred to a membrane (PVDF membrane) according to the following procedure.
- the PVDF membrane was dipped in 100% methanol, then dipped in milliQ water, then transferred to a transfer buffer solution, and the PVDF membrane was hydrophilized.
- Immunoblotting of the immunoblot membrane was performed using sera from patients with allergy to shrimp or sera from non-shrimp allergic subjects as the primary antibody.
- the immunoblotting of the membrane was performed according to the following procedure.
- (1) The transferred membrane was shaken in a 5% skim milk / PBST solution (PBS buffer containing 0.1% of the nonionic surfactant Tween 20) at room temperature for 1 hour.
- (2) The primary antibody was allowed to stand at room temperature for 1 hour in a 5% serum / 5% skim milk / PBST solution.
- Anti-human IgE-HRP horsedish peroxidase
- (6) The mixture was allowed to stand for 5 minutes with Pierce Western Blotting Substrate Plus (manufactured by Thermo).
- the molecular weight and isoelectric point of the 11 spots are as follows (FIGS. 2, 4, and 6).
- Spot 1 molecular weight 100-200 kDa
- Spot 2 molecular weight 60-130 kDa
- Spot 3 molecular weight 100-200 kDa
- Spot 4 molecular weight 60-130 kDa, pI 5.5-9.0
- Spot 5 molecular weight 80-130 kDa
- Spot 6 molecular weight 60-90 kDa
- Spot 7 molecular weight 55-70 kDa
- Spot 8 molecular weight 45-70 kDa
- 9 molecular weight 50-60 kDa
- Spot 10 molecular weight 20-40
- Example 3 Mass Spectrometry and Identification of Antigen The amino acid sequence was identified by mass spectrometry for the antigen that produced the above three spots.
- each spot mass data obtained from the mass spectrometer was analyzed by NCBI, and each spot was identified as the following protein.
- troponin I (NCBI protein accession number AFW99839.1, GenBank DNA accession number JX683730.1) (amino acid sequence: SEQ ID NO: 520, base sequence encoding it: SEQ ID NO: 519)
- NCBI protein accession number AFW99839.1 was a hit. From this, it was shown that a homolog of troponin I exists in black tiger and tiger shrimp, and it becomes an antigen of shrimp allergy.
- NCBI protein accession AEP83534.1 GenBank DNA accession number JN546074.1 (amino acid sequence: SEQ ID NO: 541, base sequence encoding it: SEQ ID NO: 540)
- cyclophilin A derived from black tiger NCBI protein accession AGS46493.1, GenBank DNA accession number KF214635.1
- amino acid sequence: SEQ ID NO: 549, base sequence encoding it: SEQ ID NO: 548 ⁇
- NCBI protein accession AEP83534.1 was a hit. From this, it was shown that a homologue of cyclophilin A exists in the prawn, which is an antigen of shrimp allergy.
- Example 4 Epitope identification Epitope of shrimp allergen component The epitope was identified for the shrimp allergen component by the following procedure.
- Epitope mapping was performed using a library of overlapping peptides (length: 15 amino acids) corresponding to the amino acid sequence identified as the allergic component of shrimp and the amino acid sequence of arginine kinase. Specifically, SEQ ID NOs: 117, 141, 146, 2, 45, 87, 276, 161, 230, 179, 362, 381, 399, 421, 455, 481, 486, 520, 541, 300, 306 and arginine A library of overlapping peptides was prepared based on the amino acid sequence of the kinase.
- Each peptide to be synthesized was shifted by 10 amino acids. That is, each peptide has a 5 amino acid overlap with the previous and subsequent peptides.
- Intavis® CelluSpots TM technology was used for peptide array preparation. That is, the following procedure: (1) The target peptide is synthesized on an amino-modified cellulose disk using an automated synthesizer (Intavis® MultiPep® RS), and (2) the amino-modified cellulose disk is dissolved to obtain a cellulose-binding peptide solution. (3) A peptide array was prepared by spotting the cellulose-binding peptide on a glass slide coated. Details of each procedure are as follows.
- Peptide synthesis was performed stepwise using 9-fluorenylmethoxycarbonyl (Fmoc) chemical reaction on an amino-modified cellulose disk in a 384-well synthesis plate. That is, an amino acid in which an Fmoc group is bonded to an amino group is activated with a solution of N, N′-diisopropylcarbodiimide (DIC) and 1-hydroxybenzotriazole (HOBt) in dimethylformamide (DMF) and added dropwise to the cellulose disk.
- Fmoc 9-fluorenylmethoxycarbonyl
- the Fmoc group-bound amino acid is coupled to the amino group on the cellulose disk (coupling), the unreacted amino group is capped with acetic anhydride, washed with DMF, further treated with piperidine and washed with DMF, The Fmoc group was removed from the amino group of the amino acid bonded to the amino group on the cellulose disk.
- Peptide synthesis was performed by extending the amino terminus of the amino acid bound to the amino group on the cellulose disk by repeating the above coupling, capping, and removal of the Fmoc group.
- Anti-human IgE antibody-HRP (1: 20,000, Pierce Protein-Free (PBS) Blocking Buffer (manufactured by Thermo) was added and shaken at room temperature for 1 hour.
- the amount of chemiluminescence was quantified using ImageQuant TM TL (GE Healthcare). Obtained from the results of using the serum of 37 patients, with the second highest value among the values obtained from the images obtained from the results of using the serum of 5 non-shrimp allergic subjects. A peptide having a value of 35,000 or more in the value obtained by taking the difference between the N2nd values of the peptides from the values quantified from the obtained images was judged to be a peptide specifically bound to the IgE antibody.
- Each peptide to be synthesized was shifted by one amino acid. That is, each peptide has a 9 amino acid overlap with the previous and subsequent peptides.
- the library was prepared by the same procedure as in the above (A), and whether or not IgE antibody in the patient's serum was bound was measured for each peptide fragment by the same method as described above. (3)
- Each of the values obtained from the results obtained by performing only (1) and (4) to (6) described in the column of the spot of the cellulose-binding peptide solution is used as a control value.
- one amino acid at a time Peptides that lost or markedly reduced the patient's binding to IgE antibody due to the shifted peptide were judged to be peptides without IgE antibody binding.
- the amount of chemiluminescence was quantified with respect to the image obtained by measurement. It was digitized from the image obtained from the results (secondary antibody measurement values) when only (1), (4) to (6) described in the column of (3) cellulose-binding peptide solution were performed.
- the sequence (SEQ ID NO: 558, 566, 582, 586, 594, 599, 614, 624, 634, 640, 654, 671, 672, 678, 681, 686, 691, 697, 704, 705, 708, 717, 725, 729, 741, 750, 752, 765, 770, 778, 788, 793, 810, 817, 826, 833, 847, 858, 865, 879, 881, 8 2, 908, 912, 915, 917, 928, 935, 939 and 943), when the value obtained is 100%, less than 30% has no binding with IgE antibody, and 30% or more but less than 50% is IgE.
- the binding property with an antibody is inferior, the binding property with an IgE antibody is 50% or more and less than 70%, the binding property with an IgE antibody is somewhat inferior, but the binding property with an IgE antibody is 70% or more. As a result, it was determined that the peptide remained binding to IgE antibody.
- alanine the original amino acid is changed from the amino terminal side
- alanine glycine scan a technique called alanine glycine scan
- a library of peptide fragments substituted with glycine in the case of alanine is prepared by the same method as described above, and whether or not IgE antibody in the patient's serum binds by the same method as described above is measured for each peptide fragment did.
- amino acid at the position where the binding to the IgE antibody of the patient is lost or markedly reduced by alanine glycine substitution is determined to be an amino acid important for the original antigenic expression or an amino acid affecting the original antigenic expression.
- Amino acids whose patient's binding to IgE antibody was not lost or significantly decreased were not important for the original antigenic expression and were considered as replaceable amino acids.
- the control value is the value quantified from the image obtained from the secondary antibody measurement value, and the difference between the control value of the peptide from the value quantified from the image obtained from the results of using the serum of 37 patients.
- each patient has obtained interview information indicating that he / she is allergic to the food shown in Table 4 below.
- IgE antibodies of patients shown in Table 5 below showed binding to the common 15-residue sequence of (E1)-(E50).
- Example 5 Confirmation of cross-reactivity of epitopes Each epitope sequence (SEQ ID NOs: 559, 561, 563, 567, 569, 571, 573, 576, 578, 580, etc.) found in each of the shrimp proteins in Table 3 above.
- the ELISA was specifically performed according to the following procedure.
- Peptides having these amino acid sequences were prepared by the same procedure as in Example 4 (A), and it was measured whether IgE antibodies in the serum of allergic patients and the serum of non-allergic subjects were bound. For the serum of non-allergic subjects, the value obtained by measuring two patients and dividing by the average value was shown.
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Abstract
Description
(1)(1A)ミオシン ヘビー チェイン タイプ 1(myosin heavy chain type 1)のC末端部分またはミオシン ヘビー チェイン タイプ a(myosin heavy chain type a)のC末端部分を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(1A-a)~(1A-e)のいずれかのタンパク質:
(1A-a)配列番号2、45または87において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(1A-b)配列番号2、45または87で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(1A-c)配列番号1、44または86において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(1A-d)配列番号1、44または86で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(1A-e)配列番号1、44または86で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(1B)配列番号2~43からなる群、配列番号45~85からなる群、または配列番号87~115からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(2)(2A)ミオシン ヘビーチェイン タイプ 1のN末端部分またはミオシン ヘビー チェイン タイプ aのN末端部分を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(2A-a)~(2A-e)のいずれかのタンパク質:
(2A-a)配列番号117、141または146において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(2A-b)配列番号117、141または146で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(2A-c)配列番号116、140または145において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(2A-d)配列番号116、140または145で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(2A-e)配列番号116、140または145で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(2B)配列番号117~139からなる群、配列番号141~144からなる群、または配列番号146~159からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(3)(3A)ミオシン ヘビー チェイン タイプ 2(myosin heavy chain type 2)のC末端部分またはミオシン ヘビーチェイン タイプ b(myosin heavy chain type b)のC末端部分を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(3A-a)~(3A-e)のいずれかのタンパク質:
(3A-a)配列番号161、179または230において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(3A-b)配列番号161、179または230で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(3A-c)配列番号160、178または229において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(3A-d)配列番号160、178または229で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(3A-e)配列番号160、178または229で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(3B)配列番号161~177からなる群、配列番号179~228からなる群、または配列番号230~274からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(4)(4A)ミオシン ヘビーチェイン タイプ 2のN末端部分またはミオシン ヘビー チェイン タイプ bのN末端部分を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(4A-a)~(4A-e)のいずれかのタンパク質:
(4A-a)配列番号276、300または306において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(4A-b)配列番号276、300または306で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(4A-c)配列番号275、299または305において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(4A-d)配列番号275、299または305で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(4A-e)配列番号275、299または305で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(4B)配列番号276~298からなる群、配列番号300~304からなる群、または配列番号306~320からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(5)(5A)グリコーゲン ホスホリラーゼ(glycogen phosphorylase)を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(5A-a)~(5A-e)のいずれかのタンパク質:
(5A-a)配列番号362において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(5A-b)配列番号362で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(5A-c)配列番号361において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(5A-d)配列番号361で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(5A-e)配列番号361で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(5B)配列番号321~336からなる群、配列番号337~360からなる群、または配列番号362~379からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(6)(6A)ヘモシアニン サブユニット L1(hemocyanin subunit L1)の一部、ヘモシアニン(hemocyanin)またはヘモシアニン サブユニット L(hemocyanin subunit L)を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(6A-a)~(6A-e)のいずれかのタンパク質:
(6A-a)配列番号381、399または414において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(6A-b)配列番号381、399または414で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(6A-c)配列番号380、398または413において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(6A-d)配列番号380、398または413で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(6A-e)配列番号380、398または413で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(6B)配列番号381~397からなる群、配列番号399~412からなる群、または配列番号414~419からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(7)(7A)ピルベート キナーゼ 3(pyruvate kinase 3)を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(7A-a)~(7A-e)のいずれかのタンパク質:
(7A-a)配列番号421において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(7A-b)配列番号421で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(7A-c)配列番号420において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(7A-d)配列番号420で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(7A-e)配列番号420で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(7B)配列番号421~435からなる群、または配列番号436~441からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(8)(8A)ホスホピルベート ヒドラターゼ(phosphopyruvate hydratase)を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(8A-a)~(8A-e)のいずれかのタンパク質:
(8A-a)配列番号455または481において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(8A-b)配列番号455または481で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(8A-c)配列番号454または480において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(8A-d)配列番号454または480で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(8A-e)配列番号454または480で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(8B)配列番号442~453からなる群、配列番号455~479からなる群、または配列番号481~484からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(9)(9A)ミトコンドリアル ATP シンターゼ サブユニット アルファ プレカーサー(mitochondrial ATP synthase subunit alpha precursor)を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(9A-a)~(9A-e)のいずれかのタンパク質:
(9A-a)配列番号486において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(9A-b)配列番号486で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(9A-c)配列番号485において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(9A-d)配列番号485で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(9A-e)配列番号485で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(9B)配列番号486~490からなる群、配列番号491~497からなる群、または配列番号498~518からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(10)(10A)トロポニン I(troponin I)を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(10A-a)~(10A-e)のいずれかのタンパク質:
(10A-a)配列番号520において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(10A-b)配列番号520で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(10A-c)配列番号519において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(10A-d)配列番号519で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(10A-e)配列番号519で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(10B)配列番号520~527からなる群、配列番号528~532からなる群、または配列番号533~539からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
(11)(11A)シクロフィリン A(cyclophilin A)を含むタンパク質またはその変異体であって、エビに対するアレルギーの抗原である、以下の(11A-a)~(11A-e)のいずれかのタンパク質:
(11A-a)配列番号541または549において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質;
(11A-b)配列番号541または549で示されるアミノ酸配列と同一性が70%以上のアミノ酸配列を含むタンパク質;
(11A-c)配列番号540または548において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質;
(11A-d)配列番号540または548で示される塩基配列と同一性が70%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質;もしくは
(11A-e)配列番号540または548で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質;又は
(11B)配列番号541~547からなる群、配列番号549~553からなる群、または配列番号554~557からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質;
を抗原として含む、前記診断キット。
(i)対象から得られた試料を抗原に接触させる、ここで当該試料はIgE抗体が含まれる溶液である;
(ii)対象から得られた試料中のIgE抗体と当該抗原との結合を検出する;
(iii)対象のIgE抗体と当該抗原との結合が検出された場合、対象がエビアレルギーであることの指標が提供される;
を含み、ここで当該抗原は、上記[1]において(1)~(11)として特定されるタンパク質の少なくとも一つである、前記方法。
以下のポリペプチドの少なくとも一つを含む、アレルギーの診断キット。
(E1)(i)配列番号558-565のアミノ酸配列を含むポリペプチド;
(ii)配列番号558-565において、配列番号558の4、5、7、8、10、11、12、13、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E2)(i)配列番号566-581、949のアミノ酸配列を含むポリペプチド;
(ii)配列番号566-581、949において、配列番号566の1、3、4、5、6、7、8、9、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E3)(i)配列番号582-585、950のアミノ酸配列を含むポリペプチド;
(ii)配列番号582-585、950において、配列番号582の9、10、11、12、13番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E4)(i)配列番号586-593、951のアミノ酸配列を含むポリペプチド;
(ii)配列番号586-593、951において、配列番号586の2、4、5、6、7、10、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E5)(i)配列番号594-598、952のアミノ酸配列を含むポリペプチド;
(ii)配列番号594-598、952において、配列番号594の9、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E6)(i)、配列番号599-613、953、954のアミノ酸配列を含むポリペプチド;
(ii)配列番号599-613、953、954において、配列番号599の2、3、4、5、6、7、8、9、10、11、12、13番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E7)(i)配列番号614-623、955のアミノ酸配列を含むポリペプチド;
(ii)、配列番号614-623、955において、配列番号614の1、2、3、4、5、6、7、8、9、10、13、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E8)(i)配列番号624-633のアミノ酸配列を含むポリペプチド;
(ii)配列番号624-633において、配列番号624の3、5、6、7、8、10、11、12、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E9)(i)配列番号634-639のアミノ酸配列を含むポリペプチド;
(ii)配列番号634-639において、配列番号634の4、6、8、10、11番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E10)(i)配列番号640-653、956、957のアミノ酸配列を含むポリペプチド;
(ii)配列番号640-653、956、957において、配列番号640の4、6、8、9、11、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E11)(i)配列番号654-670のアミノ酸配列を含むポリペプチド;
(ii)配列番号654-670において、配列番号654の2、4、5、6、7、8、9、10、12、13、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E12)配列番号671のアミノ酸配列を含むポリペプチド;
(E13)(i)配列番号672-677、958のアミノ酸配列を含むポリペプチド;
(ii)配列番号672-677、958において、配列番号672の6、7、8、9、10、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基に相当する任意のアミノ酸残基に置換されていてもよい。
(E15)(i)配列番号681-685のアミノ酸配列を含むポリペプチド;
(ii)配列番号681-685において、配列番号681の10番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E16)(i)配列番号686-690、959,960のアミノ酸配列を含むポリペプチド;
(ii)配列番号686-690、959,960において、配列番号686の4、5、6、7、9、10、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E17)(i)配列番号691-696、961のアミノ酸配列を含むポリペプチド;
(ii)配列番号691-696、961において、配列番号691の7、10、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E18)(i)配列番号697-703のアミノ酸配列を含むポリペプチド;
(ii)配列番号697-703において、配列番号697の1、3、5番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E19)配列番号704のアミノ酸配列を含むポリペプチド;
(E20)配列番号705-707のアミノ酸配列を含むポリペプチド;
(E21)(i)配列番号708-716、962、963のアミノ酸配列を含むポリペプチド;
(ii)配列番号708-716、962、963において、配列番号708の1、2、4、5、7、8、9、10、12、13、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E22)(i)配列番号717-724、964のアミノ酸配列を含むポリペプチド;
(ii)配列番号717-724、964において、配列番号717の2、4、5、6、8、9、10、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E23)配列番号725-728のアミノ酸配列を含むポリペプチド;
(E24)(i)配列番号729-740、965、966のアミノ酸配列を含むポリペプチド;
(ii)配列番号729-740、965、966において、配列番号729の4、5、6、7、8、9、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E25)(i)配列番号741-749、967、968のアミノ酸配列を含むポリペプチド;
(ii)配列番号741-749、967、968において、配列番号741の3、5、6、8、9、10、11、13番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E26)配列番号750-751のアミノ酸配列を含むポリペプチド;
(E27)(i)配列番号752-764、969、970のアミノ酸配列を含むポリペプチド;
(ii)配列番号752-764、969、970において、配列番号752の3、4、5、7、8、9、10、11番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E28)(i)配列番号765-769のアミノ酸配列を含むポリペプチド;
(ii)配列番号765-769において、配列番号765の3、5、6番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E29)(i)配列番号770-777、971、972のアミノ酸配列を含むポリペプチド;
(ii)配列番号770-777、971、972において、配列番号770の1、2、5、6、7、8、9、10、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E30)(i)配列番号778-787、973のアミノ酸配列を含むポリペプチド;
(ii)配列番号778-787、973において、配列番号778の2、3、4、6、7、8、9、10、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E31)(i)配列番号788-792のアミノ酸配列を含むポリペプチド;
(ii)配列番号788-792において、配列番号788の4、7、8、9、10、11、13番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E32)(i)配列番号793-809、974、975のアミノ酸配列を含むポリペプチド;
(ii)配列番号793-809、974、975において、配列番号793の3、4、5、6、7、8、9、10、11、12、13、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E33)(i)配列番号810-816のアミノ酸配列を含むポリペプチド;
(ii)配列番号810-816において、配列番号810の2、4、5、6、7、8、9、10、12、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E34)(i)配列番号817-825のアミノ酸配列を含むポリペプチド;
(ii)配列番号817-825において、配列番号817の2、4、5、7、8、9、11、12、13,14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E35)(i)配列番号826-832のアミノ酸配列を含むポリペプチド;
(ii)配列番号826-832おいて、配列番号826の2、3、5、8、9、10、11、12、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E36)(i)配列番号833-846、976のアミノ酸配列を含むポリペプチド;
(ii)配列番号833-846、976において、配列番号833の1、2、3、4、5、6、7、8、9、10、11、12、13、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E37)(i)配列番号847-857、977のアミノ酸配列を含むポリペプチド;
(ii)配列番号847-857、977において、配列番号847の5、6、7、9、10、11、12、13、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E38)(i)配列番号858-864のアミノ酸配列を含むポリペプチド;
(ii)配列番号858-864において、配列番号858の6、7、8、9、13、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E39)(i)配列番号865-878、984、978のアミノ酸配列を含むポリペプチド;
(ii)配列番号865-878、984、978において、配列番号865の1、2、4、5、6、8、9、10、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E40)配列番号879-880のアミノ酸配列を含むポリペプチド;;
(E41)(i)配列番号881-891、979のアミノ酸配列を含むポリペプチド;
(ii)配列番号881-891、979において、配列番号881の2、3、4、6,9、10、11、12、13、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E42)(i)配列番号892-907、980のアミノ酸配列を含むポリペプチド;
(ii)配列番号892-907、980において、配列番号892の1、2、3、4、5、8、9、10、11、12、13、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E43)(i)配列番号908-911、981のアミノ酸配列を含むポリペプチド;
(ii)配列番号908-911、981において、配列番号908の7番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E44)配列番号912-914のアミノ酸配列を含むポリペプチド;;
(E45)配列番号915-916のアミノ酸配列を含むポリペプチド;
(E46)(i)配列番号917-927、982、983のアミノ酸配列を含むポリペプチド;
(ii)配列番号917-927、982、983において、配列番号917の4、7、8、9、10、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E47)(i)配列番号928-934のアミノ酸配列を含むポリペプチド;
(ii)配列番号928-934において、配列番号928の6、7、8、10、12、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E48)(i)配列番号935-938のアミノ酸配列を含むポリペプチド;
(ii)配列番号935-938において、配列番号935の5、6番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E49)(i)配列番号939-942のアミノ酸配列を含むポリペプチド;
(ii)配列番号939-942において、配列番号939の3、6、7、10、11番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E50)(i)配列番号943-948のアミノ酸配列を含むポリペプチド;
(ii)配列番号943-948において、配列番号943の1、2、3,4,5、8、10、11番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド。
アレルギーの診断用組成物であって、態様1に記載のポリペプチドの少なくとも一つを含む、前記診断用組成物。
アレルギー患者のIgE抗体に特異的に結合するポリペプチドであって、態様1に記載のポリペプチドのいずれか一つである、前記ポリペプチド。
対象のアレルギーを診断するための指標を提供する方法であって、以下の工程:
(i)対象から得られた試料を抗原に接触させる、ここで当該試料はIgE抗体が含まれる溶液である;
(ii)対象から得られた試料中のIgE抗体と当該抗原との結合を検出する;
(iii)対象のIgE抗体と当該抗原との結合が検出された場合、対象がアレルギーであることの指標が提供される;
を含み、ここで当該抗原は、態様3に記載のポリペプチドの少なくとも一つである、前記方法。
態様3に記載のポリペプチドの少なくとも一つを含む医薬組成物。
アレルギーを治療するための、態様5に記載の医薬組成物。
態様3に記載のポリペプチドの少なくとも一つと結合する抗体を含むことを特徴とする、対象物における抗原の有無を判定するためのテスター組成物。
以下のいずれかのプライマー:
(a)態様3に記載のポリペプチドをコードする核酸の塩基配列の一部及び/またはその相補鎖の一部を含むプライマー;または
(b)配列番号1、44、86、116、140、145、160、178、229、275、299、305、361、380、398、413、420、454、480、485、519、540または548で示される塩基配列の少なくとも1つの一部であるプライマーおよび/または配列番号1、44、86、116、140、145、160、178、229、275、299、305、361、380、398、413、420、454、480、485、519、540または548で示される塩基配列の少なくとも1つと相補的な配列の一部であるプライマー;
を含むことを特徴とする、対象物における抗原の有無を判定するためのテスター組成物。
態様3に記載のポリペプチドの原料・加工品中の有無を判定する方法であって、前記原料・加工品中に態様3に記載のポリペプチドを検出する、ことを含む、前記方法。
抗原が除去若しくは低減されていることを特徴とする原料又は加工品であって、当該抗原は態様3に記載のポリペプチドの少なくとも一つである、前記原料又は加工品。
抗原が除去若しくは低減されている加工品の製造方法であって、当該加工品の製造過程で抗原が除去若しくは低減されていることを確認するステップを有し、ここで当該抗原は態様3に記載のポリペプチドの少なくとも一つである、前記製造方法。
エビに含まれるタンパク質を下記の条件で2次元電気泳動に供し、エビに対するアレルギーの抗原の特定を行った。
(1)スポット1の抗原
スポット1について質量分析による配列同定を行った結果、バナメイエビについて配列番号3~43、ブラックタイガーについて配列番号46~85、クルマエビについて配列番号88~115、のアミノ酸配列が検出された。
(1A-a)配列番号2、45または87において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(1A-b)配列番号2、45または87で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(1A-c)配列番号1、44または86において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(1A-d)配列番号1、44または86で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(1A-e)配列番号1、44または86で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(1B)配列番号2~43からなる群、配列番号45~85からなる群、または配列番号87~115からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20、25、30、45、50種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号2~5、7~13、16~24および26~43からなる群、配列番号45、46、48、49、51~55、58~66および68~85からなる群、または、配列番号87~90および92~115からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20、25、30、45種またはすべての配列を含むタンパク質。ここにおいて、配列番号2~43、配列番号45~85および配列番号87~115のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット2について質量分析による配列同定を行った結果、バナメイエビについて配列番号118~139、ブラックタイガーについて配列番号142~144、クルマエビについて配列番号147~159、のアミノ酸配列が検出された。
(2A-a)配列番号117、141または146において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(2A-b)配列番号117、141または146で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(2A-c)配列番号116、140または145において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(2A-d)配列番号116、140または145で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(2A-e)配列番号116、140または145で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(2B)配列番号117~139からなる群、配列番号141~144からなる群、または配列番号146~159からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号117~126、128~132、136、138および139からなる群、配列番号141~144からなる群、または配列番号146~159からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15種またはすべての配列を含むタンパク質。ここにおいて、配列番号117~139、配列番号141~144および配列番号146~159のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット3について質量分析による配列同定を行った結果、バナメイエビについて配列番号162~177、ブラックタイガーについて配列番号180~228、クルマエビについて配列番号231~274、のアミノ酸配列が検出された。
(3A-a)配列番号161、179または230において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(3A-b)配列番号161、179または230で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(3A-c)配列番号160、178または229において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(3A-d)配列番号160、178または229で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(3A-e)配列番号160、178または229で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(3B)配列番号161~177からなる群、配列番号179~228からなる群、または配列番号230~274からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20、25、30、35、40、45種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号161、162および164~177からなる群、配列番号179~181、183~186、188~190、192~212、214~216および218~228からなる群、配列番号230~233、235~240、242、244~258、260~262および264~274からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20、25、30、35、40種またはすべての配列を含むタンパク質。ここにおいて、配列番号161~177、配列番号179~228および配列番号230~274のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット4について質量分析による配列同定を行った結果、バナメイエビについて配列番号277~298、ブラックタイガーについて配列番号301~304、クルマエビについて配列番号307~320、のアミノ酸配列が検出された。
(4A-a)配列番号276、300または306において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(4A-b)配列番号276、300または306で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(4A-c)配列番号275、299または305において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(4A-d)配列番号275、299または305で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(4A-e)配列番号275、299または305で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(4B)配列番号276~298からなる群、配列番号300~304からなる群、または配列番号306~320からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号276~293および295~298かからなる群、配列番号300~304からなる群、または配列番号306、307、および309~319からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20種またはすべての配列を含むタンパク質。ここにおいて、配列番号276~298、配列番号300~304および配列番号306~320のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット5について質量分析による配列同定を行った結果、バナメイエビについて配列番号321~336、ブラックタイガーについて配列番号337~360、クルマエビについて配列番号363~379、のアミノ酸配列が検出された。
(5A-a)配列番号362において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(5A-b)配列番号362で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(5A-c)配列番号361において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(5A-d)配列番号361で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(5A-e)配列番号361で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(5B)配列番号321~336からなる群、配列番号337~360からなる群、または配列番号362~379からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号322~326、329~330および332~336からなる群、配列番号338~343、345、347~349および352~360からなる群、配列番号362~367、369、371および373~379からなる群より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15種またはすべての配列を含むタンパク質。ここにおいて、配列番号321~336、配列番号337~360および配列番号362~379のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット6について質量分析による配列同定を行った結果、バナメイエビについて配列番号382~397、ブラックタイガーについて配列番号400~412、クルマエビについて配列番号415~419、のアミノ酸配列が検出された。
(6A-a)配列番号381、399または414において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(6A-b)配列番号381、399または414で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(6A-c)配列番号380、398または413において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(6A-d)配列番号380、398または413で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(6A-e)配列番号380、398または413で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(6B)配列番号381~397からなる群、配列番号399~412からなる群、または配列番号414~419からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号381~384および386~397からなる群、配列番号399~402、404および407~412からなる群、または配列番号414~416、418および419から成る群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10種またはすべての配列を含むタンパク質。ここにおいて、配列番号381~397、配列番号399~412および配列番号414~419のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット7について質量分析による配列同定を行った結果、バナメイエビについて配列番号422~435、ブラックタイガーについて配列番号436~441、のアミノ酸配列が検出された。
(7A-a)配列番号421において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(7A-b)配列番号421で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(7A-c)配列番号420において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(7A-d)配列番号420で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(7A-e)配列番号420で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(7B)配列番号421~435からなる群、または配列番号436~441からなる群より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10種またはすべての配列を含むタンパク質。ここにおいて、配列番号421~435および配列番号436~441のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット8について質量分析による配列同定を行った結果、バナメイエビについて配列番号442~453、ブラックタイガーについて配列番号456~479、クルマエビについて配列番号482~484、のアミノ酸配列が検出された。
(8A-a)配列番号455または481において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(8A-b)配列番号455または481で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(8A-c)配列番号454または480において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(8A-d)配列番号454または480で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(8A-e)配列番号454または480で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(8B)配列番号442~453からなる群、配列番号455~479からなる群、または配列番号481~484からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号442~450、452および453からなる群、配列番号455~459、463~469、471~473および476~479からなる群、または配列番号481~484からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15種またはすべての配列を含むタンパク質。ここにおいて、配列番号442~453、配列番号455~479および配列番号481~484のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット9について質量分析による配列同定を行った結果、バナメイエビについて配列番号487~490、ブラックタイガーについて配列番号491~497、クルマエビについて配列番号498~518、のアミノ酸配列が検出された。
(9A-a)配列番号486において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(9A-b)配列番号486で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(9A-c)配列番号485において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(9A-d)配列番号485で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(9A-e)配列番号485で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(9B)配列番号486~490からなる群、配列番号491~497からなる群、または配列番号498~518からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15、20種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号486~490からなる群、配列番号491~497からなる群、または配列番号498~501、503~507、509および512~518からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6、7、8、9、10、15種またはすべての配列を含むタンパク質。ここにおいて、配列番号486~490、配列番号491~497および配列番号498~518のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット10について質量分析による配列同定を行った結果、バナメイエビについて配列番号521~527、ブラックタイガーについて配列番号528~532、クルマエビについて配列番号533~539、のアミノ酸配列が検出された。
(10A-a)配列番号520において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(10A-b)配列番号520で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(10A-c)配列番号519において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(10A-d)配列番号519で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(10A-e)配列番号519で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(10B)配列番号520~527からなる群、配列番号528~532からなる群、または配列番号533~539からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5、6種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号520~525および527からなる群、配列番号528~530および532からなる群、または配列番号533~537および539からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5種またはすべての配列を含むタンパク質。ここにおいて、配列番号520~527、配列番号528~532および配列番号533~539のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
スポット11について質量分析による配列同定を行った結果、バナメイエビについて配列番号542~547、ブラックタイガーについて配列番号550~553、クルマエビについて配列番号554~557、のアミノ酸配列が検出された。
(11A-a)配列番号541または549において1又は数個のアミノ酸が欠失、置換、挿入又は付加されたアミノ酸配列を含むタンパク質。
(11A-b)配列番号541または549で示されるアミノ酸配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上のアミノ酸配列を含むタンパク質。
(11A-c)配列番号540または548において1又は数個のヌクレオチドが欠失、置換、挿入又は付加された塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(11A-d)配列番号540または548で示される塩基配列と同一性が70%以上、好ましくは75%以上、80%以上、85%以上、90%以上、95%以上、97%以上、98%以上、99%以上の塩基配列によりコードされるアミノ酸配列を含むタンパク質。
(11A-e)配列番号540または548で示される塩基配列に対し相補的な塩基配列からなる核酸とストリンジェントな条件下でハイブリダイズする核酸によりコードされるアミノ酸配列を含むタンパク質。
(11B)配列番号541~547からなる群、配列番号549~553からなる群、または配列番号554~557からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3、4、5種またはすべての配列を含むタンパク質。さらに好ましくは、配列番号541~543、545および546からなる群、配列番号549~553からなる群、または配列番号554~556からなる群、より選択されるアミノ酸配列の少なくとも一つを含むタンパク質、好ましくは当該アミノ酸配列の少なくとも2、3種またはすべての配列を含むタンパク質。ここにおいて、配列番号541~547、配列番号549~553および配列番号554~557のいずれかで示されるアミノ酸配列は、1もしくは数個のアミノ酸が欠失、置換、挿入もしくは付加されていてもよい。
A群:ロイシン、イソロイシン、バリン、アラニン、メチオニン
B群:アスパラギン酸、グルタミン酸
C群:アスパラギン、グルタミン
D群:リジン、アルギニン、
E群:セリン、スレオニン
F群:フェニルアラニン、チロシン
本発明は、対象のエビアレルギーを診断するための指標を提供する方法であって、以下の工程:
(i)対象から得られた試料を抗原に接触させる、ここで当該試料はIgE抗体が含まれる溶液である;
(ii)対象から得られた試料中のIgE抗体と当該抗原との結合を検出する;
(iii)対象のIgE抗体と当該抗原との結合が検出された場合、対象がエビアレルギーであることの指標が提供される;
を含み、ここで当該抗原は上記(1)~(11)の抗原として特定されるタンパク質の少なくとも一つである、前記方法を提供する。
(A)1次元目の等電点電気泳動ゲルとして、ゲル長が5~10cmの範囲内であって、ゲルのpH範囲が3~10であり、泳動方向に対するゲルのpH勾配が、pH5までのゲル長をa、pH5~7のゲル長をb、pH7以上のゲル長をcとした場合において、「a<b]及び「b>c」の関係を満たす;
(B)(A)の場合であって、ゲルの全長を1とした場合、aが0.15~0.3の範囲内、bが0.4~0.7の範囲内、cが0.15~0.3の範囲内である;
(C)1次元目の等電点電気泳動において、検体を含むゲル1本につき100V~600Vの範囲内の値の定電圧の印加による定電圧工程を行い、泳動30分あたりの泳動変化幅が5μAの範囲内となった後に前記定電圧から電圧を上昇させる電圧上昇行程を始める;
(D)(C)の場合に、電圧上昇工程の最終電圧を3000V~6000Vの範囲内とする;
(E)1次元目の等電点電気泳動ゲルの長手方向のゲル長が5~10cmであって、2次元目電気泳動ゲルの泳動方向基端部のゲル濃度を3~6%とする;および
(F)(E)の場合に、2次元目電気泳動ゲルの泳動方向先端側の部分のゲル濃度が、泳動方向基端部のゲル濃度よりも高く設定する;
からなる群より選択される少なくとも一つを満たす条件で2次元電気泳動を行うことができる。
(i)対象から得られた試料を抗原に接触させる;
(ii)対象から得られた試料中のIgE抗体と当該抗原との結合を検出する;
(iii)対象のIgE抗体と当該抗原との結合が検出された場合、対象がエビに対するアレルギーであると判断する;
ことを含み、ここで当該抗原は上記(1)~(11)の抗原として特定されるタンパク質の少なくとも一つである、前記方法を提供する。ここにおいて(i)および(ii)の各工程は、エビに対するアレルギーを診断するための指標を提供する方法の各工程について説明したとおりに行われる。
本発明は、上記(1)~(11)の抗原の少なくとも一つを含む医薬組成物を提供する。
本発明は、上記(1)~(11)の抗原の少なくとも一つに対する抗体を含むテスター組成物を提供する。
・作製したIg抗体を含むテスター組成物を原料・加工品等から得られた試料に接触させて、例えばELISA等を用いて当該Ig抗体と試料中の抗原との結合を検出し、当該Ig抗体と抗原との結合が検出された場合に、対象原料・加工品等に当該抗原が含まれると判断する方法。
・ろ紙などに原料・加工品をしみこませ、そこに含まれる抗原を検出するように、抗体溶液を反応させる方法。
本発明は、上記(1)~(11)の抗原の少なくとも一つに対する抗体を、原料・加工品(液体を含む)とを接触させることを含む、上記(1)~(11)の抗原の対象物質中の有無を判定する方法を含む。
本発明は、上記(1)~(11)の抗原の少なくとも一つが除去又は低減されていることを特徴とするエビまたはエビ加工品を提供する。
本発明は、抗原が除去または低減されているエビまたはエビ加工品の製造方法であって、当該加工品の製造過程で抗原が除去又は低減されていることを確認するステップを有する、ここで当該抗原は上記(1)~(11)の抗原の少なくとも一つである、前記製造方法を提供する。
実施例1-3に示すとおり特定した抗原ならびにアルギニンキナーゼ(arginine kinase)ついて、実施例4に示すとおり、エピトープおよびそのエピトープ内でアレルギー患者のIgE抗体との結合性に重要なアミノ酸を特定した。
ミオシン ヘビー チェイン タイプ 2由来:(E5)-(E11)
グリコーゲン ホスホリラーゼ由来:(E12)、(E13)
ヘモシアニン サブユニット L1由来:(E14)、(E15)、(E44)
ピルベート キナーゼ 3由来:(E16)、(E17)、(E45)
ホスホピルベート ヒドラターゼ由来:(E18)、(E46)、(E47)
ミトコンドリアル ATP シンターゼ サブユニット アルファ プレカーサー由来:(E19)、(E20)
トロポニン I由来:(E21)、(E48)、(E49)
シクロフィリンA由来:(E22)、(E23)、(E50)
アルギニンキナーゼ由来:(E24)、(E25)
本発明は、対象のアレルギーを診断するための指標を提供する方法であって、以下の工程:
(i)対象から得られた試料を抗原に接触させる、ここで当該試料はIgE抗体が含まれる溶液である;
(ii)対象から得られた試料中のIgE抗体と当該抗原との結合を検出する;
(iii)対象のIgE抗体と当該抗原との結合が検出された場合、対象がアレルギーであることの指標が提供される;
を含み、ここで当該抗原は上記(E1)-(E50)のアミノ酸配列を含むポリペプチドの少なくとも一つであるポリペプチド、または2以上の上記(E1)-(E50)のアミノ酸配列を含むポリペプチドがスペーサーを介してもしくは介さずに連結されたポリペプチドである、前記方法を提供する。
(i)対象から得られた試料を抗原に接触させる;
(ii)対象から得られた試料中のIgE抗体と当該抗原との結合を検出する;
(iii)対象のIgE抗体と当該抗原との結合が検出された場合、対象がアレルギーであると判断する;
ことを含み、ここで当該抗原は上記(E1)-(E50)のアミノ酸配列を含むポリペプチドして特定されるポリペプチドの少なくとも一つである、前記方法を提供する。ここにおいて(i)および(ii)の各工程は、アレルギーを診断するための指標を提供する方法の各工程について説明したとおりに行われる。
本発明は、上記(E1)-(E50)のアミノ酸配列を含むポリペプチドの少なくとも一つを含む医薬組成物を提供する。一態様において、上記の医薬組成物は、アレルギーを治療するために用いられる。アレルギーの治療とは、体内に取り込んでも発症しないポリペプチドの限界量を増やすことであり、最終的には通常のポリペプチドの摂取量では発症しない状態(寛解)を目指すものである。
本発明は、上記(E1)-(E50)のアミノ酸配列を含むポリペプチドの少なくとも一つに対する抗体を含むテスター組成物を提供する。
・ろ紙などに原料・加工品等をしみこませ、そこに含まれる上記(E1)-(E50)のアミノ酸配列を含むポリペプチドを検出するように、抗体溶液を反応させる方法。
本発明は、上記(E1)-(E50)のアミノ酸配列を含むポリペプチドの原料・加工品中の有無を判定する方法を含む。当該方法は、原料・加工品中に上記(E1)-(E50)のアミノ酸配列を含むポリペプチドのアミノ酸配列の全体又は部分を有するポリペプチドを検出することを含む。
本発明は、上記(E1)-(E50)のアミノ酸配列を含むポリペプチドの少なくとも一つが除去又は低減されていることを特徴とする原料または加工品を提供する。
本発明は、(E1)-(E50)のアミノ酸配列を含むポリペプチドの少なくとも一つがが除去又は低減されている加工品の製造方法であって、当該加工品の製造過程で抗原が除去又は低減されていることを確認するステップを有する、前記製造方法を提供する。
下記の二次元電気泳動方法を使用して、エビ(バナメイエビ、ブラックタイガーおよびクルマエビ)に含まれるタンパク質を調べた。
エビに含まれるタンパク質の抽出及び精製は次のように行った。エビの身に、尿素バッファーを加えてタンパク質を抽出した。尿素バッファーの組成は以下の通りである。
30mM Tris
2M チオ尿素
7M 尿素
4%(w/v) CHAPS:
3-[(3-コラミドプロピル)ジメチルアンモニオ]プロパンスルホナート
適量の希塩酸
蒸留水を加えて全体を100mLに調整した。pHは8.5であった。
得られた検体の一部(タンパク質重量として50μg)を、1次元目等電点電気泳動用ゲルの膨潤用緩衝液であるDeStreak Rehydration Solution(GE社製)150μlに溶解し、1次元目等電点電気泳動用の検体溶液(膨潤用検体溶液)とした。DeStreak Rehyd
ration Solutionの組成は以下の通りである。
7M チオ尿素
2M 尿素
4%(w/v) CHAPS
0.5%(v/v) IPGバッファー;GE社製
適量のBPB(ブロモフェノールブルー)
1次元目等電点電気泳動用ゲル(GE社製:IPGゲルImmobiline Drystrip (pH3-10NL))を前記した1次元目等電点電気泳動用の検体溶液(膨張用検体溶液)140μlに浸漬し、一晩室温にて浸透させた。
上記の1次元目の等電点電気泳動を行った後、等電点電気泳動機器からゲルを取り外し、還元剤を含む平衡化緩衝液に当該ゲルを浸漬して、15分・室温にて振とうした。上記還元剤を含む平衡化緩衝液の組成は以下の通りである。
100mM Tris-HCl(pH8.0)
6M 尿素
30%(v/v) グリセロール
2%(w/v) SDS
1%(w/v) DTT
100mM Tris-HCl(pH8.0)
6M 尿素
30%(v/v) グリセロール
2%(w/v) SDS
2.5%(w/v) ヨードアセトアミド
本実施例においては、電気泳動機器としてlife technologies社製のXCell SureLock Mini-Cellを使用した。2次元目泳動用ゲルはlife technologies社製NuPAGE 4-12% Bis-Tris Gelsを使用した。また、以下の組成の泳動用緩衝液を調製し、使用した。
50mM MOPS
50mM Tris塩基
0.1%(w/v) SDS
1mM EDTA
SYPRO Ruby(life technologies社製)を用いてゲルの蛍光染色を行った。
上記一連の処理を施した2次元目泳動用ゲルをTyphoon9500(GE社製)を使用した蛍光イメージのスキャンに供した。エビの身に含まれるタンパク質について、2次元電気泳動の結果を図1(バナメイエビ)、図3(ブラックタイガー)および図5(クルマエビ)に示す。各図のゲルの写真の左側には、分子量マーカーのバンドが見られ、バンドの位置が特定の分子量(KDa)を示す。
イムノブロットでの抗原確認は、バナメイエビ、ブラックタイガーおよびクルマエビについて、それぞれ実施例1に記載した手順を「2次元目のSDS-PAGE」まで行った後、以下の「メンブレンへの転写」「イムノブロット」「解析」の操作を行うことにより行った。
メンブレンへの転写は、以下の転写装置及び転写用緩衝液を用いて行った。
転写装置:XCell SureLock Mini-Cell およびXCell IIブロットモジュール(life technologies社製)
転写用緩衝液:NuPAGEトランスファーバッファー(×20)(life technologies社製)をmilliQ水で20倍希釈して使用した。
メンブレンのイムノブロットを、1次抗体としてエビに対するアレルギーを有する患者の血清または非エビアレルギー被験者の血清を用いて行った。
(1)転写したメンブレンを5%スキムミルク/PBST溶液(非イオン界面活性剤Tween 20を0.1%含むPBSバッファー)中、室温で1時間振とうした。
(2)1次抗体として、5%血清/5%スキムミルク/PBST溶液中、室温で1時間静置した。
(3)PBST溶液で洗浄した(5分×3回)。
(4)2次抗体として抗ヒトIgE-HRP(セイヨウワサビペルオキシダーゼ)を5%スキムミルク/PBST溶液で5000倍に希釈した溶液中、室温で1時間静置した。
(5)PBST溶液で洗浄した(5分×3回)。
(6)Pierce Western Blotting Substrate Plus(Thermo社製)で、5分間静置した。
上記一連の処理を施したメンブレンをTyphoon9500(GE社製)を使用した蛍光イメージのスキャンに供した。
スポット1:分子量100~200kDa、pI5.0~6.0
スポット2:分子量60~130kDa、pI5.5~9.0
スポット3:分子量100~200kDa、pI5.0~6.0
スポット4:分子量60~130kDa、pI5.5~9.0
スポット5:分子量80~130kDa、pI6.0~8.0
スポット6:分子量60~90kDa、pI5.0~6.0
スポット7:分子量55~70kDa、pI5.5~8.0
スポット8:分子量45~70kDa、pI5.0~7.0
スポット9:分子量50~60kDa、pI6.0~9.0
スポット10:分子量20~40kDa、pI8.0~10.0
スポット11:分子量15~20kDa、pI8.0~10.0
上記の3つのスポットを生じる抗原について、質量分析によるアミノ酸配列の同定を行った。
(1)エビ(バナメイエビ、ブラックタイガーおよびクルマエビ)について、実施例1及び2の手順に従ってタンパク質抽出、2次元電気泳動及びメンブレン転写を行い、0.008%Direct blue/40%エタノール・10%酢酸で振とうにより染色した。
(2)その後、40%エタノール・10%酢酸で5分間の処理を3回行って脱色し、水で5分間洗浄後、風乾した。
(3)目的のスポットをきれいなカッター刃で切り取り、遠心チューブに入れた。50μLのメタノールでメンブレン親水処理後、100μLの水で2回洗浄後遠心除去し、20μLの20mM NH4HCO3・50%アセトニトリルを加えた。
(4)1pmol/μLリシルエンドペプチダーゼ(WAKO)1μLを加え、37℃で60分間静置した後、溶液を新しい遠心チューブに回収した。20μLの20mM NH4HCO3・70%アセトニトリルをメンブレンに加え、室温にて10分間浸し、さらに回収した。0.1%ギ酸、4%アセトニトリル10μLで溶解し、チューブに移した。
(5)回収した溶液を減圧乾燥した後、A液(0.1%ギ酸、4%アセトニトリル溶液)15μlで溶解し、質量分析(ESI-TOF6600, AB Sciex社製)を行った。
(6)質量分析計から得られた質量データに基づくタンパク質の同定は、NCBIをサーチすることで行った。
各スポットについて、質量分析を行ったところ、以下のアミノ酸配列が検出された。
・バナメイエビについて、ミオシン ヘビー チェイン タイプ 1(NCBIのタンパク質アクセッション番号BAM65721.1、GenBank のDNAアクセッション番号AB758443.1)のC末端部分(アミノ酸配列:配列番号2、それをコードする塩基配列:配列番号1)
・ブラックタイガーについて、ミオシン ヘビー チェイン タイプ 1(NCBIのタンパク質アクセッション番号BAM65719.1、GenBank のDNAアクセッション番号AB758441.1)のC末端部分(アミノ酸配列:配列番号45、それをコードする塩基配列:配列番号44)
・クルマエビについて、ミオシン ヘビー チェイン タイプ a(NCBIのタンパク質アクセッション番号BAK61429.1、GenBank のDNAアクセッション番号AB613205.1)のC末端部分(アミノ酸配列:配列番号87、それをコードする塩基配列:配列番号86)
スポット2:
・バナメイエビについて、ミオシン ヘビー チェイン タイプ 1(NCBIのタンパク質アクセッション番号BAM65721.1、GenBank のDNAアクセッション番号AB758443.1)のN末端部分(アミノ酸配列:配列番号117、それをコードする塩基配列:配列番号116)
・ブラックタイガーについて、ミオシン ヘビー チェイン タイプ 1(NCBIのタンパク質アクセッション番号BAM65719.1、GenBank のDNAアクセッション番号AB758441.1)のN末端部分(アミノ酸配列:配列番号141、それをコードする塩基配列:配列番号140)
・クルマエビについて、ミオシン ヘビー チェイン タイプ a(NCBIのタンパク質アクセッション番号BAK61429.1、GenBank のDNAアクセッション番号AB613205.1)のN末端部分(アミノ酸配列:配列番号146、それをコードする塩基配列:配列番号145)
スポット3:
・バナメイエビについて、ミオシン ヘビー チェイン タイプ 2(NCBIのタンパク質アクセッション番号BAM65722.1、GenBank のDNAアクセッション番号AB758444.1)のC末端部分(アミノ酸配列:配列番号161、それをコードする塩基配列:配列番号160)
・ブラックタイガーについて、ミオシン ヘビー チェイン タイプ 2(NCBIのタンパク質アクセッション番号BAM65720.1、GenBank のDNAアクセッション番号AB758442.1)のC末端部分(アミノ酸配列:配列番号179、それをコードする塩基配列:配列番号178)
・クルマエビについてミオシン ヘビー チェイン タイプ b(NCBIのタンパク質アクセッション番号BAK61430.1、GenBank のDNAアクセッション番号AB613206.1)のC末端部分(アミノ酸配列:配列番号230、それをコードする塩基配列:配列番号229)
スポット4:
・バナメイエビについて、ミオシン ヘビー チェイン タイプ 2(NCBIのタンパク質アクセッション番号BAM65722.1、GenBank のDNAアクセッション番号AB758444.1)のN末端部分(アミノ酸配列:配列番号276、それをコードする塩基配列:配列番号275)
・ブラックタイガーについて、ミオシン ヘビー チェイン タイプ 2(NCBIのタンパク質アクセッション番号BAM65720.1、GenBank のDNAアクセッション番号AB758442.1)のN末端部分(アミノ酸配列:配列番号300、それをコードする塩基配列:配列番号299)
・クルマエビについて、ミオシン ヘビー チェイン タイプ b(NCBIのタンパク質アクセッション番号BAK61430.1、GenBank のDNAアクセッション番号AB613206.1)のN末端部分(アミノ酸配列:配列番号306、それをコードする塩基配列:配列番号305)
スポット5:
・クルマエビについて、グリコーゲン ホスホリラーゼ(NCBIのタンパク質アクセッション番号BAJ23879.1、GenBank のDNAアクセッション番号AB596876.1)(アミノ酸配列:配列番号362、それをコードする塩基配列:配列番号361)
バナメイエビおよびブラックタイガーについては、NCBIのタンパク質アクセッション番号BAJ23879.1がヒットした。このことから、バナメイエビおよびブラックタイガーにグリコーゲン ホスホリラーゼのホモログが存在し、それがエビアレルギーの抗原となることが示された。
スポット6:
・バナメイエビについて、ヘモシアニン サブユニット L1の一部(NCBIのタンパク質アクセッション番号AHY86471.1、GenBank のDNAアクセッション番号KF193058.1)(アミノ酸配列:配列番号381、それをコードする塩基配列:配列番号380)
・ブラックタイガーについて、ヘモシアニン(NCBIのタンパク質アクセッション番号AEB77775.1、GenBank のDNAアクセッション番号JF357966.1)(アミノ酸配列:配列番号399、それをコードする塩基配列:配列番号398)
・クルマエビについて、ヘモシアニン サブユニット L(NCBIのタンパク質アクセッション番号ABR14693.1、GenBank のDNAアクセッション番号EF375711.1)(アミノ酸配列:配列番号414、それをコードする塩基配列:配列番号413)
スポット7:
・バナメイエビについて、ピルベート キナーゼ 3(NCBIのタンパク質アクセッション番号ABY66598.1、GenBank のDNAアクセッション番号EU216039.1)(アミノ酸配列:配列番号421、それをコードする塩基配列:配列番号420)
ブラックタイガーについては、NCBIのタンパク質アクセッション番号ABY66598.1がヒットした。このことから、ブラックタイガーにピルベート キナーゼ 3のホモログが存在し、それがエビアレルギーの抗原となることが示された。
スポット8:
・ブラックタイガーについて、ホスホピルベート ヒドラターゼ(NCBIのタンパク質アクセッション番号AAC78141.1、GenBank のDNAアクセッション番号AF100985.1)(アミノ酸配列:配列番号455、それをコードする塩基配列:配列番号454)
・クルマエビについてホスホピルベート ヒドラターゼ(NCBIのタンパク質アクセッション番号ALL27930.1、GenBank のDNAアクセッション番号KR184189.1)(アミノ酸配列:配列番号481、それをコードする塩基配列:配列番号480)
バナメイエビについては、NCBIのタンパク質アクセッション番号AAC78141.1がヒットした。このことから、バナメイエビにホスホピルベート ヒドラターゼのホモログが存在し、それがエビアレルギーの抗原となることが示された。
スポット9:
・バナメイエビについて、ミトコンドリアル ATP シンターゼ サブユニット アルファプレカーサー(NCBIのタンパク質アクセッション番号ADC55251.1、GenBank のDNAアクセッション番号GQ848643.3)(アミノ酸配列:配列番号486、それをコードする塩基配列:配列番号485)
ブラックタイガーおよびクルマエビについては、NCBIのタンパク質アクセッション番号ADC55251.1がヒットした。このことから、ブラックタイガーおよびクルマエビにミトコンドリアル ATP シンターゼ サブユニット アルファ プレカーサーのホモログが存在し、それがエビアレルギーの抗原となることが示された。
スポット10:
・バナメイエビについて、トロポニン I(NCBIのタンパク質アクセッション番号AFW99839.1、GenBank のDNAアクセッション番号JX683730.1)(アミノ酸配列:配列番号520、それをコードする塩基配列:配列番号519)
ブラックタイガーおよびクルマエビについては、NCBIのタンパク質アクセッション番号AFW99839.1がヒットした。このことから、ブラックタイガーおよびクルマエビにトロポニン Iのホモログが存在し、それがエビアレルギーの抗原となることが示された。
スポット11:
・バナメイエビについて、シクロフィリン A(NCBIのタンパク質アクセッションAEP83534.1、GenBank のDNAアクセッション番号JN546074.1)(アミノ酸配列:配列番号541、それをコードする塩基配列:配列番号540)
・ブラックタイガーについて、ブラックタイガー由来のシクロフィリン A(NCBIのタンパク質アクセッションAGS46493.1、GenBank のDNAアクセッション番号KF214635.1)(アミノ酸配列:配列番号549、それをコードする塩基配列:配列番号548)
・クルマエビについては、NCBIのタンパク質アクセッションAEP83534.1がヒットした。このことから、クルマエビにシクロフィリン Aのホモログが存在し、それがエビアレルギーの抗原となることが示された。
エビのアレルゲンコンポーネントのエピトープ
エビのアレルゲンコンポーネントについて、以下の手順によりエピトープの同定を行った。
エビのアレルギーコンポーネントとして特定したアミノ酸配列ならびにアルギニンキナーゼ(arginine kinase)のアミノ酸配列に対応するオーバーラップペプチド(長さ:15アミノ酸)のライブラリーによって、エピトープマッピングを行った。具体的には、配列番号117、141、146、2、45、87、276、161、230、179、362、381、399、421、455、481、486、520、541、300、306およびアルギニンキナーゼのアミノ酸配列に基づいてオーバーラップペプチドのライブラリーを調製した。
384ウェル合成プレート中のアミノ修飾セルロースディスク上で、9-フルオレニルメトキシカルボニル(Fmoc)化学反応を利用して、ペプチド合成を段階的に行った。すなわち、Fmoc基がアミノ基に結合したアミノ酸をジメチルホルムアミド(DMF)中のN,N’-ジイソプロピルカルボジイミド(DIC)および1-ヒドロキシベンゾトリアゾール(HOBt)の溶液で活性化し、前記セルロースディスクに滴下してセルロースディスク上のアミノ基へ前記Fmoc基結合アミノ酸を結合させ(カップリング)、未反応のアミノ基を無水酢酸によりキャッピングしてDMFにより洗浄し、さらにピペリジンで処理してDMFにより洗浄して、セルロースディスク上のアミノ基に結合したアミノ酸のアミノ基からFmoc基を除去した。前記セルロースディスク上のアミノ基に結合したアミノ酸に対して、上記カップリング、キャッピング、およびFmoc基の除去を反復して行うことにより、アミノ末端を伸長させてペプチド合成を行った。
上記「(1)ペプチドの合成」で得られた目的のペプチドが結合したセルロースディスクを96ウェルプレートに移し、アミノ酸の側鎖の脱保護のため、トリフルオロ酢酸(TFA)、ジクロロメタン、トリイソプロピルシラン(TIPS)、および水の側鎖脱保護混合液で処理した。その後、脱保護されたセルロース結合ペプチドを、TFA、トリフルオロメタンスルホン酸(TFMSA)、TIPS、および水の混合液で溶解し、テトラブチルメチルエーテル(TBME)で沈殿させ、ジメチルスルホキシド(DMSO)中に再懸濁し、NaCl、クエン酸Na、および水の混合液と混合し、スライドスポット用ペプチド溶液を得た。
上記「(2)アミノ修飾セルロースディスクの溶解」で得られたスライドスポット用ペプチド溶液を、Intavisスライドスポッティングロボットを用いて、Intavis CelluSpots(商標)スライド上にスポットし、これを乾燥させてペプチドアレイを調製した。
上記(A)により患者特異的に血清中IgE抗体が結合したペプチドの配列(配列番号558、566、582、586、594、599、614、624、634、640、654、671、672、678、681、686、691、697、704、705、708、717、725、729、741、750、752、765、770、778、788、793、810、817、826、833、847、858、865、879、881、892、908、912、915、917、928、935、939および943)を基に、当該ペプチドの配列および当該ペプチドの配列を含むアレルゲンコンポーネントのアミノ酸配列における当該ペプチドの前後の配列を付加した配列において、オーバーラップペプチド断片(長さ:10アミノ酸)のライブラリーを作製し、エピトープマッピングを行った。
上記(A)で同定したアミノ酸配列について、アラニングリシンスキャンと呼ばれる手法(非特許文献5)により、アミノ末端側から1アミノ酸ずつアラニン(元のアミノ酸がアラニンの場合はグリシン)に置換したペプチド断片のライブラリーを、上記と同様の手法で調製し、上記と同様の手法で患者の血清中のIgE抗体が結合するか否かを各ペプチド断片について測定した。アラニングリシン置換により患者のIgE抗体への結合性が喪失あるいは著しく減少した位置のアミノ酸は、本来の抗原性の発現のために重要なアミノ酸、または本来の抗原性の発現に影響するアミノ酸と判断し、患者のIgE抗体への結合性が喪失あるいは著しく減少しなかったアミノ酸は、本来の抗原性の発現のためには重要ではなく、置換が可能なアミノ酸と判断した。
上記表3の、エビの各タンパク質について見出された各エピトープ配列(配列番号559、561、563、567、569、571、573、576、578、580、583、585、587、588、591、593、595、596、597、600、602、604、606、608、611、612、615、617、619、621、623、625、626、630、632、635、636、637、639、641、643、645、646、647、649、651、653、655、656、658、660、662、663、664、666、668、669、673、676、679、680、682、683、684、687、689、692、694、695、698、700、702、703、706、707、709、711、713、715、719、721、723、724、726、727、728、730、732、734、736、738、742、744、746、748、751、753、755、757、759、761、763、764、766、767、768、771、772、774、776、779、781、783、785、787、789、791、794、795、797、799、801、803、805、808、811、813、815、818、820、822、824、827、829、831、834、836、838、840、842、845、848、850、851、852、854、856、859、861、863、866、868、870、872、875、877、880、882、884、885、887、889、893、895、897、899、900、902、904、906、909、910、913、914、916、918、920、921、923、926、929、931、933、936、937、940、942、944、946および947)中におけるIgE抗体との結合維持に重要なアミノ酸以外のアミノ酸を、任意のアミノ酸(X)とした鍵配列(配列番号560、562、564、565、568、570、572、574、575、577、579、581、584、589、590、592、598、601、603、605、607、609、610、613、616、618、620、622、627、629、631、633、636、638、642、644、648、650、652、657、659、661、665、667、670、674、675、677、685、688、690、693、696、701、710、712、714、716、720、722、731、733、735、737、739、740、743、745、747、749、754、756、758、760、762、769、773、775、777、780、782、784、786、790、792、796、798、800、802、804、806、807、809、812、814、816、819、821、823、825、828、830、832、835、837、839、841、843、844、846、849、853、855、857、860、862、864、867、869、871、873、874、876、878、984、883、886、888、890、891、894、896、898、901、903、905、907、911、919、922、924、925、927、930、932、934、938、941、945および948)について、各患者が同時に有するアレルゲン食材に対して同配列を有するタンパク質をNCBIで検索した結果、一例として表3-1~表3-50の「交差性確認食物」の列に記載の各食物の配列に含まれるアミノ酸配列がヒットした。
Claims (11)
- 以下のポリペプチドの少なくとも一つを含む、アレルギーの診断キット。
(E1)(i)配列番号558-565のアミノ酸配列を含むポリペプチド;
(ii)配列番号558-565において、配列番号558の4、5、7、8、10、11、12、13、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E2)(i)配列番号566-581、949のアミノ酸配列を含むポリペプチド;
(ii)配列番号566-581、949において、配列番号566の1、3、4、5、6、7、8、9、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E3)(i)配列番号582-585、950のアミノ酸配列を含むポリペプチド;
(ii)配列番号582-585、950において、配列番号582の9、10、11、12、13番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E4)(i)配列番号586-593、951のアミノ酸配列を含むポリペプチド;
(ii)配列番号586-593、951において、配列番号586の2、4、5、6、7、10、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E5)(i)配列番号594-598、952のアミノ酸配列を含むポリペプチド;
(ii)配列番号594-598、952において、配列番号594の9、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E6)(i)、配列番号599-613、953、954のアミノ酸配列を含むポリペプチド;
(ii)配列番号599-613、953、954において、配列番号599の2、3、4、5、6、7、8、9、10、11、12、13番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E7)(i)配列番号614-623、955のアミノ酸配列を含むポリペプチド;
(ii)、配列番号614-623、955において、配列番号614の1、2、3、4、5、6、7、8、9、10、13、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E8)(i)配列番号624-633のアミノ酸配列を含むポリペプチド;
(ii)配列番号624-633において、配列番号624の3、5、6、7、8、10、11、12、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E9)(i)配列番号634-639のアミノ酸配列を含むポリペプチド;
(ii)配列番号634-639において、配列番号634の4、6、8、10、11番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E10)(i)配列番号640-653、956、957のアミノ酸配列を含むポリペプチド;
(ii)配列番号640-653、956、957において、配列番号640の4、6、8、9、11、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E11)(i)配列番号654-670のアミノ酸配列を含むポリペプチド;
(ii)配列番号654-670において、配列番号654の2、4、5、6、7、8、9、10、12、13、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E12)配列番号671のアミノ酸配列を含むポリペプチド;
(E13)(i)配列番号672-677、958のアミノ酸配列を含むポリペプチド;
(ii)配列番号672-677、958において、配列番号672の6、7、8、9、10、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基に相当する任意のアミノ酸残基に置換されていてもよい。
(E14)配列番号678-680のアミノ酸配列を含むポリペプチド;
(E15)(i)配列番号681-685のアミノ酸配列を含むポリペプチド;
(ii)配列番号681-685において、配列番号681の10番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E16)(i)配列番号686-690、959,960のアミノ酸配列を含むポリペプチド;
(ii)配列番号686-690、959,960において、配列番号686の4、5、6、7、9、10、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E17)(i)配列番号691-696、961のアミノ酸配列を含むポリペプチド;
(ii)配列番号691-696、961において、配列番号691の7、10、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E18)(i)配列番号697-703のアミノ酸配列を含むポリペプチド;
(ii)配列番号697-703において、配列番号697の1、3、5番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E19)配列番号704のアミノ酸配列を含むポリペプチド;
(E20)配列番号705-707のアミノ酸配列を含むポリペプチド;
(E21)(i)配列番号708-716、962、963のアミノ酸配列を含むポリペプチド;
(ii)配列番号708-716、962、963において、配列番号708の1、2、4、5、7、8、9、10、12、13、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E22)(i)配列番号717-724、964のアミノ酸配列を含むポリペプチド;
(ii)配列番号717-724、964において、配列番号717の2、4、5、6、8、9、10、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E23)配列番号725-728のアミノ酸配列を含むポリペプチド;
(E24)(i)配列番号729-740、965、966のアミノ酸配列を含むポリペプチド;
(ii)配列番号729-740、965、966において、配列番号729の4、5、6、7、8、9、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E25)(i)配列番号741-749、967、968のアミノ酸配列を含むポリペプチド;
(ii)配列番号741-749、967、968において、配列番号741の3、5、6、8、9、10、11、13番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E26)配列番号750-751のアミノ酸配列を含むポリペプチド;
(E27)(i)配列番号752-764、969、970のアミノ酸配列を含むポリペプチド;
(ii)配列番号752-764、969、970において、配列番号752の3、4、5、7、8、9、10、11番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E28)(i)配列番号765-769のアミノ酸配列を含むポリペプチド;
(ii)配列番号765-769において、配列番号765の3、5、6番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E29)(i)配列番号770-777、971、972のアミノ酸配列を含むポリペプチド;
(ii)配列番号770-777、971、972において、配列番号770の1、2、5、6、7、8、9、10、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E30)(i)配列番号778-787、973のアミノ酸配列を含むポリペプチド;
(ii)配列番号778-787、973において、配列番号778の2、3、4、6、7、8、9、10、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E31)(i)配列番号788-792のアミノ酸配列を含むポリペプチド;
(ii)配列番号788-792において、配列番号788の4、7、8、9、10、11、13番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E32)(i)配列番号793-809、974、975のアミノ酸配列を含むポリペプチド;
(ii)配列番号793-809、974、975において、配列番号793の3、4、5、6、7、8、9、10、11、12、13、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E33)(i)配列番号810-816のアミノ酸配列を含むポリペプチド;
(ii)配列番号810-816において、配列番号810の2、4、5、6、7、8、9、10、12、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E34)(i)配列番号817-825のアミノ酸配列を含むポリペプチド;
(ii)配列番号817-825において、配列番号817の2、4、5、7、8、9、11、12、13,14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E35)(i)配列番号826-832のアミノ酸配列を含むポリペプチド;
(ii)配列番号826-832おいて、配列番号826の2、3、5、8、9、10、11、12、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E36)(i)配列番号833-846、976のアミノ酸配列を含むポリペプチド;
(ii)配列番号833-846、976において、配列番号833の1、2、3、4、5、6、7、8、9、10、11、12、13、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E37)(i)配列番号847-857、977のアミノ酸配列を含むポリペプチド;
(ii)配列番号847-857、977において、配列番号847の5、6、7、9、10、11、12、13、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E38)(i)配列番号858-864のアミノ酸配列を含むポリペプチド;
(ii)配列番号858-864において、配列番号858の6、7、8、9、13、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E39)(i)配列番号865-878、984、978のアミノ酸配列を含むポリペプチド;
(ii)配列番号865-878、984、978において、配列番号865の1、2、4、5、6、8、9、10、11、12番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E40)配列番号879-880のアミノ酸配列を含むポリペプチド;;
(E41)(i)配列番号881-891、979のアミノ酸配列を含むポリペプチド;
(ii)配列番号881-891、979において、配列番号881の2、3、4、6,9、10、11、12、13、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E42)(i)配列番号892-907、980のアミノ酸配列を含むポリペプチド;
(ii)配列番号892-907、980において、配列番号892の1、2、3、4、5、8、9、10、11、12、13、14、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E43)(i)配列番号908-911、981のアミノ酸配列を含むポリペプチド;
(ii)配列番号908-911、981において、配列番号908の7番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E44)配列番号912-914のアミノ酸配列を含むポリペプチド;;
(E45)配列番号915-916のアミノ酸配列を含むポリペプチド;
(E46)(i)配列番号917-927、982、983のアミノ酸配列を含むポリペプチド;
(ii)配列番号917-927、982、983において、配列番号917の4、7、8、9、10、15番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E47)(i)配列番号928-934のアミノ酸配列を含むポリペプチド;
(ii)配列番号928-934において、配列番号928の6、7、8、10、12、14番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E48)(i)配列番号935-938のアミノ酸配列を含むポリペプチド;
(ii)配列番号935-938において、配列番号935の5、6番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E49)(i)配列番号939-942のアミノ酸配列を含むポリペプチド;
(ii)配列番号939-942において、配列番号939の3、6、7、10、11番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド;
(E50)(i)配列番号943-948のアミノ酸配列を含むポリペプチド;
(ii)配列番号943-948において、配列番号943の1、2、3,4,5、8、10、11番目のアミノ酸残基に相当する1つないし複数のアミノ酸残基が任意のアミノ酸残基に置換されている、アミノ酸配列を含むポリペプチド。 - アレルギーの診断用組成物であって、請求項1に記載のポリペプチドの少なくとも一つを含む、前記診断用組成物。
- アレルギー患者のIgE抗体に特異的に結合するポリペプチドであって、請求項1に記載のポリペプチドのいずれか一つである、前記ポリペプチド。
- 対象のアレルギーを診断するための指標を提供する方法であって、以下の工程:
(i)対象から得られた試料を抗原に接触させる、ここで当該試料はIgE抗体が含まれる溶液である;
(ii)対象から得られた試料中のIgE抗体と当該抗原との結合を検出する;
(iii)対象のIgE抗体と当該抗原との結合が検出された場合、対象がアレルギーであることの指標が提供される;
を含み、ここで当該抗原は、請求項3に記載のポリペプチドの少なくとも一つである、前記方法。 - 請求項3に記載のポリペプチドの少なくとも一つを含む医薬組成物。
- アレルギーを治療するための、請求項5に記載の医薬組成物。
- 請求項3に記載のポリペプチドの少なくとも一つと結合する抗体を含むことを特徴とする、対象物における抗原の有無を判定するためのテスター組成物。
- 以下のいずれかのプライマー:
(a)請求項3に記載のポリペプチドをコードする核酸の塩基配列の一部及び/またはその相補鎖の一部を含むプライマー;または
(b)配列番号1、44、86、116、140、145、160、178、229、275、299、305、361、380、398、413、420、454、480、485、519、540または548で示される塩基配列の少なくとも1つの一部であるプライマーおよび/または配列番号1、44、86、116、140、145、160、178、229、275、299、305、361、380、398、413、420、454、480、485、519、540または548で示される塩基配列の少なくとも1つと相補的な配列の一部であるプライマー;
を含むことを特徴とする、対象物における抗原の有無を判定するためのテスター組成物。 - 請求項3に記載のポリペプチドの原料・加工品中の有無を判定する方法であって、前記原料・加工品中に請求項3に記載のポリペプチドを検出する、ことを含む、前記方法。
- 抗原が除去若しくは低減されていることを特徴とする原料又は加工品であって、当該抗原は請求項3に記載のポリペプチドの少なくとも一つである、前記原料又は加工品。
- 抗原が除去若しくは低減されている加工品の製造方法であって、当該加工品の製造過程で抗原が除去若しくは低減されていることを確認するステップを有し、ここで当該抗原は請求項3に記載のポリペプチドの少なくとも一つである、前記製造方法。
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CN201880043071.6A CN110799646B (zh) | 2017-04-28 | 2018-05-01 | 变态反应的抗原及其表位 |
KR1020197032673A KR20200002888A (ko) | 2017-04-28 | 2018-05-01 | 알레르기 항원 및 그 에피토프 |
JP2019514694A JP7184259B2 (ja) | 2017-04-28 | 2018-05-01 | アレルギーの抗原およびそのエピトープ |
EP18792322.2A EP3617312A4 (en) | 2017-04-28 | 2018-05-01 | ALLERGY AGENTS AND EPITOPES FOR IT |
US16/608,239 US20200188510A1 (en) | 2017-04-28 | 2018-05-01 | Allergy antigen and epitope thereof |
JP2022181605A JP2023027061A (ja) | 2017-04-28 | 2022-11-14 | アレルギーの抗原およびそのエピトープ |
US18/471,906 US20240108719A1 (en) | 2017-04-28 | 2023-09-21 | Allergy antigen and epitope thereof |
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WO2024128080A1 (ja) * | 2022-12-16 | 2024-06-20 | 東亞合成株式会社 | 合成ペプチド及び構築物 |
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WO2022015934A2 (en) * | 2020-07-15 | 2022-01-20 | The Johns Hopkins Universtiy | Comprehensive analysis of anti-allergen antibodies using phage display |
CN115963273B (zh) * | 2022-10-09 | 2024-04-12 | 中国海洋大学 | 一种三疣梭子蟹nSCP或rSCP的应用与试剂盒 |
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CN114729015B (zh) * | 2019-07-22 | 2024-01-12 | 第一美肤公司 | 具有抗衰老效果的多肽及其用途 |
WO2024128080A1 (ja) * | 2022-12-16 | 2024-06-20 | 東亞合成株式会社 | 合成ペプチド及び構築物 |
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