WO2002042474A1 - Zygomycetes-origin endoglucanase lacking cellulose-binding domain - Google Patents
Zygomycetes-origin endoglucanase lacking cellulose-binding domain Download PDFInfo
- Publication number
- WO2002042474A1 WO2002042474A1 PCT/JP2001/010188 JP0110188W WO0242474A1 WO 2002042474 A1 WO2002042474 A1 WO 2002042474A1 JP 0110188 W JP0110188 W JP 0110188W WO 0242474 A1 WO0242474 A1 WO 0242474A1
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- WIPO (PCT)
- Prior art keywords
- protein
- cellulose
- seq
- homologue
- rce
- Prior art date
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- NKLPQNGYXWVELD-UHFFFAOYSA-M coomassie brilliant blue Chemical compound [Na+].C1=CC(OCC)=CC=C1NC1=CC=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C=CC(=CC=2)N(CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=C1 NKLPQNGYXWVELD-UHFFFAOYSA-M 0.000 description 1
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- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
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- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
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- 239000011734 sodium Substances 0.000 description 1
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- BHZOKUMUHVTPBX-UHFFFAOYSA-M sodium acetic acid acetate Chemical compound [Na+].CC(O)=O.CC([O-])=O BHZOKUMUHVTPBX-UHFFFAOYSA-M 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/24—Hydrolases (3) acting on glycosyl compounds (3.2)
- C12N9/2402—Hydrolases (3) acting on glycosyl compounds (3.2) hydrolysing O- and S- glycosyl compounds (3.2.1)
- C12N9/2405—Glucanases
- C12N9/2434—Glucanases acting on beta-1,4-glucosidic bonds
- C12N9/2437—Cellulases (3.2.1.4; 3.2.1.74; 3.2.1.91; 3.2.1.150)
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38636—Preparations containing enzymes, e.g. protease or amylase containing enzymes other than protease, amylase, lipase, cellulase, oxidase or reductase
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38645—Preparations containing enzymes, e.g. protease or amylase containing cellulase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y302/00—Hydrolases acting on glycosyl compounds, i.e. glycosylases (3.2)
- C12Y302/01—Glycosidases, i.e. enzymes hydrolysing O- and S-glycosyl compounds (3.2.1)
- C12Y302/01004—Cellulase (3.2.1.4), i.e. endo-1,4-beta-glucanase
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/13—Fugitive dyeing or stripping dyes
- D06P5/137—Fugitive dyeing or stripping dyes with other compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/15—Locally discharging the dyes
- D06P5/158—Locally discharging the dyes with other compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/12—Soft surfaces, e.g. textile
Definitions
- Endalcanase enzyme from zygomycetes lacking the cellulose binding domain.
- the present invention relates to an endoglucanase enzyme having an increased effect in the processing of cellulose-containing fibers, detergents, and paper pulp by deleting the cellulose-binding region.
- the present invention relates to a production method thereof, and a cellulase preparation having an increased effect.
- cellulase derived from wood rot fungi, Tricoderma and Humicola.
- cellulase preparations have been used in which only the endalcanase having high activity in fiber treatment is isolated from these cellulase components and its effect is enhanced by genetic engineering in order to improve economic efficiency.
- these highly active endalcanases include EGV (Humicola insolens) derived from Humicola insolens, which strongly acts on cotton fabrics.
- EGV Haicola insolens
- NCE4 International Publication No.
- RCE I RCE II
- RCEI IL derived from Rhizopus oryzae that strongly act on lyocell dough.
- MCE L MCE II derived from Rcinel loides
- PCE I derived from Phycomyces nitens (International Publication No. TO00Z24879).
- EGV EGV
- NCE4 WO No. W098 03640
- RCE I RCE II
- RCEI IL MCE I MCE II
- PCE I International Publication No. WO00 / 24879
- these endalcanases have a cellulose binding domain (Cellulose Binding Domain, hereinafter referred to as cBDj) that has a function to bind to its substrate, cellulose, and a catalytic domain (Catalyt ic Active Domain (hereinafter referred to as “CAD”), and a linker region that has a high content of hydrophilic amino acid residues and connects these two regions.
- cBDj Cellulose Binding Domain
- CAD Catalyt ic Active Domain
- EGV an endoglucanase belonging to Famili-45
- CBD cellulose binding domain
- An object of the present invention is to provide an endalcanase having improved activity, a cellulase preparation containing the same, and various methods for treating cellulose-containing fibers using the same.
- the present inventors diligently studied the role of the cellulose-binding region in the action on the cellulose-containing fiber in the zygote-derived endalcanase, and found that the endoglucanase in which the cell-mouth-binding region is deleted. However, they have found that the activity of removing fluff on cotton, lyocell, and the like is much higher than that of endalcanase having a cellulose-binding region, and have led to the present invention.
- the present invention provides an endoglucanase derived from a zygote having an improved fuzz removal effect on a cellulose-containing fiber by deleting the cellulose-binding region (for example, by deleting the cellulose-binding region, the cellulose-containing An enzyme having an endoglucanase activity comprising the amino acid sequence of RCE I, RCE II, RCE III, MCE I, MCEI L and PCE I, which has an improved fuzz removal effect on fibers, and a modification thereof showing endoglucanase activity Proteins, or homologs thereof), and cellulase preparations containing endoglucanases thereof.
- the present invention relates to an endalcanase produced in a host cell transformed with a gene encoding an endalcanase such as those described above.
- the present invention relates to a method for treating a cellulose-containing fiber with the endoglucanase or the cellulase preparation. That is, the present invention includes the following inventions.
- the zygote is a microorganism selected from the group consisting of a microorganism belonging to the genus Rhizopus, a microorganism belonging to the genus Mucor, and a microorganism belonging to the genus Phycomyces; (1) or The protein according to (2).
- SEQ ID NO: 1 In the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 3, SEQ ID NO: 5, SEQ ID NO: 7, SEQ ID NO: 9, or SEQ ID NO: 11, including an amino acid sequence in which the cellulose binding region has been deleted, and an endoglucanase A protein that shows activity.
- a method for producing a protein comprising a step of collecting the protein, modified protein or homologue thereof according to the above.
- a cellulase preparation comprising the protein, modified protein or homologue thereof according to any one of (1) to (6) and (13).
- a method for reducing the rate at which the cellulose-containing fiber starts fluffing or reducing the fluffing of the cellulose-containing fiber comprising:
- the method comprising the step of contacting the cellulase preparation according to (14).
- a method comprising treating with the protein, the modified protein or a homolog thereof, or the cellulase preparation according to (14).
- (22) The protein, the modified protein or the homologue thereof according to any one of (1) to (6) and (13) or the cellulase preparation according to (14), Detergent additive contained in the form or in a stabilized liquid form.
- (23) A detergent composition comprising the protein, the modified protein or the homologue thereof according to any one of (1) to (6) and (13) or the cellulase preparation according to (14). .
- the protein, the modified protein or the homologue thereof or the homologue thereof described in any one of (1) to (6) and (13) may be used.
- a method for deinking waste paper which comprises using the cellulase preparation described in (1).
- a method for improving the drainage of paper pulp wherein the paper pulp comprises the protein, modified protein or homologue thereof according to any one of (1) to (6) and (13), or 14) comprising a step of treating with the cellulase preparation according to Said method.
- a method for improving digestibility of an animal feed which comprises using the protein, the modified protein or a homolog thereof according to any one of (1) to (6) and (13). Or a method comprising treating with the cellulase preparation according to (14).
- the present invention relates to a protein which is deficient in a cellulose-binding region in an endodalcanase derived from a zygote, and which exhibits an endalcanase activity.
- zygomycetes refers to microorganisms belonging to the zygomycota (Zygomycota), that is, fungi that produce zygote spores by gametocysts joining by sexual reproduction. Includes the power of zygomycetes (Zygomyce tes) and Trichomycetes (Trichomyce tes).
- the zygomycetes in the present invention are not particularly limited, but are preferably those belonging to the zygomycetes, more preferably those belonging to the order Mucorales, and even more preferably those belonging to the genus Rhizopus and Mucor. Alternatively, those belonging to the genus Phycomyces, most preferably those belonging to the genus Rhizopus, are used.
- Endoglucanase activity means CMCase activity.
- CMCase activity refers to the activity of hydrolyzing carboxymethylcellulose (CMC, manufactured by Tokyo Chemical Industry Co., Ltd.), and the reducing sugar released after incubating the test protein and CMC solution for a certain period of time. The amount is measured, and the amount of the enzyme that produces 1 / zmol glucose-equivalent reducing sugar per minute is defined as one unit. The endokalkanase activity can be measured, for example, by the following procedure.
- 0.5 ml of the solution containing the test protein is added to 0.5 ml of 50 mM acetic acid-sodium acetate buffer (pH 6.0) containing 2% CMC, and incubated at 50 ° C for 30 minutes. Bastion.
- concentration of the produced reducing sugar in the obtained reaction solution was measured using 3,5-dinitrosa. Quantify by the lylic acid method (DNS method). That is, 3.Oml of the DNS reagent is added to 1.0 ml of the reaction solution 30 minutes after the reaction, incubated for 5 minutes in a boiling water bath, diluted with 8.Oml of distilled water, and the absorbance at 540 nm is measured.
- DNS method Quantify by the lylic acid method
- a calibration curve is prepared using a stepwise diluted glucose solution, and the amount of reducing sugars produced in the enzyme reaction solution is determined in terms of Darcos. The activity is calculated based on the amount of enzyme that produces 1 mol of glucose-equivalent reducing sugar per minute as one unit.
- the DNS reagent can be prepared according to the description in the literature (for example, "Biochemical Experimental Method 1: Quantitative Determination of Reducing Sugar", pp. 19-20, Sakuzo Fukui, Gakkai Shuppan Center). It can be prepared by the following procedure.
- endalkanase refers to an enzyme exhibiting endokalkanase activity, that is, endo-1,4-1 / 3-dulcanase (EC 3.2.1.4). ) Hydrolyzes the) 3-1,4-Darcovyranosyl bond of 3-1,4-glucan.
- Endalcanases are classified into multiple families based on information such as amino acid sequences.
- the endodalcanase in the present invention may belong to any one of the families, but preferably belongs to the family 45.
- the “endocalcanase” belonging to “family 45” is defined as (Ser, Thr or Ala) -Thr-Arg-Tyr- (Trp, Tyr or Phe) -Asp-Xaa-Xaa in the catalytic region (CAD).
- -Xaa-Xaa-Xaa-Xaa- (Cys or Ala) having a consensus sequence, such as EGV derived from Humicola insolens (Tokuheihei 5-509223) or NCE4 (WO98 / 03640) Etc. also belong to Family 1 45.
- Endalcanase proteins belonging to Family 45 are divided into catalytic domains (CAD), cellulose-binding domains (CBD), and linker domains that link them in terms of function.
- CAD catalytic domains
- CBD cellulose-binding domains
- linker domains that link them in terms of function.
- the cellulose-binding region (CBD) is known to exist as a region that binds to cellulose, and as a feature of the sequence, it has been confirmed that the following common sequence is conserved. (Hoifren, A. -M. Et al., Prote in Engineering 8: 443-450, 1995).
- CBD common sequence
- Xaa Xaa Xaa Asn Xaa Xaa Tyr Xaa Gin Cys Xaa (SEQ ID NO: 17) where, Xaa is a force indicating any amino acid that is not limited.20, 21, 22, 23, 24, 30, 40 Xaa at position 1 may not be present. The other Xaa is always present and represents any amino acid that is not limited. Amino acids other than Xaa followed the three-letter notation.
- This CBD region is linked to either the N-terminal side or the C-terminal side of CAD via a linker, but NCE 5 derived from Humicola insolens (amino acid sequence: SEQ ID NO: 38) , CDNA sequence: SEQ ID NO: 39), a family 45 endoglucanase that does not originally have a CBD has also been reported.
- linker region Although there is no clear recognition sequence for the linker region, it is a sequence rich in hydrophilic amino acid residues such as Ser and Thr, and its length varies depending on the type of endalcanase.
- Examples of the zygomycete-derived endalcanase in the present invention include, for example, Rhizobus (Rhizopus), Phycomyces (Phycomyces) or Mucor (Mucor) derived from the genus WO00Z24879, which has an enzyme exhibiting an endalcanase activity, that is, RCE I (SEQ ID NO: 1), RCE II (SEQ ID NO: 3), RCE III (SEQ ID NO: 5), MCE I
- N-terminal amino acid sequences of RCE I, MCE I and PCE I have been identified as shown in SEQ ID NO: 14, SEQ ID NO: 15 and SEQ ID NO: 16, respectively (International Published No. W000 / 24879).
- the protein of the present invention may be any protein as long as it does not contain a cellulose-binding region in the above-mentioned endalcanase, and there is no particular structural limitation for other regions as long as it has an endalcanase activity. . Therefore, the protein of the present invention may or may not include the linker region, and may include a part of the linker region. Preferably, a fragment of the linker region of about 10 amino acids remains. Good to be.
- the invention provides a method of SEQ ID NO: 1 (RCEI), SEQ ID NO: 3 (RCEII), SEQ ID NO: 5 (RCEIII), SEQ ID NO: 7 (MCEI), SEQ ID NO: 9 (MCEII) or
- the present invention relates to a protein comprising an amino acid sequence represented by the amino acid sequence represented by No. 11 (PCE I) in which a cellulose-binding region has been deleted, and which has an endalcanase activity.
- the present invention relates to modified proteins and homologues of such proteins, which exhibit endglucanase activity.
- modified protein refers to one or more amino acids in the amino acid sequence of RCE I, RCE II, RCE I II, MCE I, MCE II or PCE I in which the cellulose binding region has been deleted.
- a protein comprising an amino acid sequence in which an alteration such as addition, insertion, reduction, deletion, or substitution has occurred.
- the number of amino acids according to the modification is not particularly limited as long as the modified protein has an endalcanase activity, but is preferably 1 to about 50, more preferably 1 to about 30, and still more preferably. :! ⁇ 9.
- the term "homolog” refers to a gene encoding the amino acid sequence of RCE I, RCE II, RCE III, MCE I, MCE II, and PCE I in which the cellulose binding region has been deleted, for example, SEQ ID NO: 2 Or SEQ ID NO: 13 (RCE I), SEQ ID NO: 4 (RCE II), SEQ ID NO: 6 (RCE II I), SEQ ID NO: 8 (MCE I), SEQ ID NO: 10 (MCE II), SEQ ID NO: 12 (PCE A DNA having a nucleotide sequence excluding a portion encoding a cellulose binding region in the nucleotide sequence represented by I) or the like, and an amino acid sequence encoded by a gene (base sequence) that hybridizes under stringent conditions.
- polypeptide having endalcanase activity refers to the amino acid sequence of RCE I, RCE II, RCEIIL MCE I, MCE II, and PCEI in which the cellulose binding region has been deleted, or a part or the amino acid sequence of its modified protein. While the probe comprising the entire nucleotide sequence hybridizes with the gene encoding the homologue, the probe binds to the endorcanase NCE4 gene (SEQ ID NO: 1) described in WO098 / 03640. 8) and International Patent No.
- W098Z54332 and the endalcanase SCE3 gene (SEQ ID NO: 19) described under conditions controlled so as not to hybridize here, the amount of DNA is NCE4 Gene, the SCE3 gene, and the gene encoding the homolog are also used in the same amount.
- an ECL direct DNAZRNA labeling detection system manufactured by Amersham is used as a probe, which has a full-length DNA sequence encoding an amino acid sequence such as RCE I in which a cellulose binding region is deleted.
- the probe was added after 1 hour of prehybridization (42 ° C) according to the method described above, and after 15 hours of hybridization (42 ° C), 0.4% SDS and 6M Washing was repeated twice with urea-added 0.5x SSC (1XSSC; 15 mM trisodium citrate, 150 mM sodium chloride) at 42 for 20 minutes, and then with 5x SSC at room temperature (about 25 The conditions are such that washing is performed twice for 10 minutes.
- urea-added 0.5x SSC (1XSSC; 15 mM trisodium citrate, 150 mM sodium chloride
- modified proteins or homologues may include the amino acid sequence of RCE I, RCE II, RCEIIL CE I, MCE II, or PCEI lacking the cellulose binding region, preferably 70% or more, more preferably 80% or more. % Or more, more preferably 90% or more, still more preferably 95% or more, and most preferably 98% or more.
- the numerical value of the homology shown here may be a numerical value calculated using a homology search program known to those skilled in the art, but is preferably FASTA3 [Science, 227, 1435-1441 (1985); Proc Natl. Acad. Sci. USA, 85, 2444-2448 (1988); http: ⁇ www, ddbj. Nig, ac. J / E-mail / homology-j-html] It is a numerical value calculated using overnight.
- the protein of the present invention does not contain a cellulose binding region. Therefore, the above modified proteins and homologues must not contain a cellulose binding region. This involves examining the amino acid sequence of the protein of interest and including the consensus sequence (Hrissan, A.-M. et al., Protein Engineering 8: 443-450, 1995; SEQ ID NO: 17). It can be confirmed by checking whether or not.
- the protein of the present invention is a protein having an endalcanase activity. is there. Therefore, the above-mentioned modified proteins and homologs must also have endodalcanase activity. This can be confirmed by examining the endoglucanase activity of the target protein using the method described above.
- the protein of the present invention can be prepared by a method known to those skilled in the art as a protein containing an amino acid sequence that does not include the cellulose-binding region based on the amino acid sequence of a known endoglucanase derived from a zygote.
- Such methods include, for example, a method in which a part of a linker is degraded by a protease during culture of a zygote producing endalcanase to delete a cellulose-binding region, or a method in which a cellulose-binding region is deleted by a genetic method. And a method for artificially expressing an endalcanase having no expression.
- the proteins of the present invention the above-mentioned modified proteins and homologues in particular can also be prepared by using DNA encoding the amino acid sequence thereof and by genetic engineering techniques known to those skilled in the art.
- the protein of the present invention can also exert a high effect on the original endoglucanase having a cellulose binding region in fiber processing, detergents, and paper pulp applications.
- fluff of regenerated cellulosic fibers such as lyocell
- the removal activity (per protein weight) and the fluff removal activity (per protein weight) of cotton fabrics such as cotton knit can be much higher.
- the protein of the present invention preferably has a fluff removing activity (based on protein weight) of regenerated cellulose fibers (eg, lyocell) that is preferably at least twice as much as that of purified endoglucanase having a cellulose binding region. Has an activity of 2.5 times or more, most preferably 3 times or more.
- a fluff removing activity (per protein weight) of a cotton fabric such as a cotton knit
- a purified end having a cellulose binding region. It has an activity of at least 5 times, more preferably at least 15 times, most preferably at least 20 times that of dalcanase.
- a gene, an expression vector, a host cell transformed with the expression vector, and production of a cellulose-binding domain-deficient endodalcanase using the host cell The present invention relates to a gene encoding the protein of the present invention, a modified protein or a homolog thereof, and an expression vector comprising the gene.
- the gene of the present invention may be any as long as it encodes the protein of the present invention, the modified protein or a homolog thereof, and the details of the specific nucleotide sequence are not particularly limited.
- RCE I, RCE II, RCE III, MCE I, MCE II or PCE I in which the cellulose binding region is deleted for example, SEQ ID NO: 2 (RCE I), SEQ ID NO: 4 (RCE II), Those containing the nucleotide sequence represented by SEQ ID NO: 6 (RCE III), SEQ ID NO: 8 (MCE 1), SEQ ID NO: 10 (MCE II) or SEQ ID NO: 12 (PCE I) can be used.
- the gene of the present invention has an amino acid in which the cellulose binding region has been deleted. It is a gene that contains a sequence and encodes a protein that exhibits endoglucanase activity, a modified protein thereof that exhibits endoglucanase activity, or a homologue thereof that exhibits endoglucanase activity.
- the gene of the present invention is a gene comprising the following DNA (a) or (b).
- stringent conditions refer to the conditions described in 1. above.
- nucleotide sequence of the above gene can be optimized according to the type of host cell used for the subsequent transformation.
- Such optimization of the base sequence can be performed, for example, with respect to codon usage in the host cell, intron recognition sequence in the host cell, and the like.
- Codon usage can be performed, for example, by modifying the base sequence to include as many codons used frequently in the host cell without changing the encoded amino acid sequence.
- optimization with respect to intron recognition sequences may include, for example, a DNA sequence that does not contain any DNA sequence that can be recognized as an intron in the host cell or that contains as little as possible without altering the encoded amino acid sequence.
- the modification can be carried out, whereby the stability of DNA, which is a transcription product of the target gene, can be improved.
- the intron recognition sequence varies depending on the type of host cell, but examples of the intron recognition sequence in filamentous fungi belonging to the incomplete fungi include GTAGN, GTATN, GTAAN, GTACGN, GTGTN, GCACGN, and GTTCGN (in each sequence, ⁇ N Represents A, T, C or G.).
- the term “codon-optimized gene” refers to a gene obtained by codon usage and / or optimization of an intron recognition sequence, but is preferably a gene obtained by codon usage optimization, more preferably Is a gene obtained by codon usage and optimization for intron recognition sequences.
- the codon-optimized gene is preferably optimized for expression in a filamentous fungus belonging to a defective fungus. Examples of such a codon-optimized gene include, for example, a codon-optimized endorcanase RCEI gene (SEQ ID NO: 13) described in International Publication No. WO00Z24879 in which a portion encoding a cellulose binding region has been deleted. No.
- the expression vector of the present invention is capable of replicating in a host cell and expressing the protein, modified protein or homologue thereof of the present invention in the state of a target gene (protein of the present invention, (A gene encoding a modified protein or a homologue thereof).
- a target gene protein of the present invention, (A gene encoding a modified protein or a homologue thereof).
- Such an expression vector is a self-replicating vector, that is, a vector that exists as an extrachromosomal independent entity, the replication of which does not depend on chromosomal replication, For example, it can be constructed based on a plasmid.
- the expression vector may be one which, when introduced into a host cell, is integrated into the genome of the host cell and replicated along with the chromosome (s) into which it has been integrated.
- the procedure and method for constructing the vector according to the present invention may be those commonly used in the field of genetic engineering.
- the expression vector of the present invention encodes the protein of the present invention, the modified protein or a homolog thereof in order to introduce the vector into a host cell to express the protein, the modified protein or a homolog thereof.
- it preferably contains a DNA sequence that controls its expression, a genetic marker for selecting a transformant, and the like.
- the DNA sequence controlling expression include a promoter and a terminator, a DNA sequence encoding a signal peptide, and the like.
- the promoter and the enzyme are not particularly limited as long as they exhibit transcriptional activity in a host cell, and DNA that controls the expression of a gene encoding a protein of the same or different type from the host cell is used. It can be obtained as an array.
- the signal peptide is not particularly limited as long as it contributes to secretion of the protein in the host cell, and may be obtained from a DNA sequence derived from a gene encoding a protein of the same or different type as the host cell. it can.
- the gene marker in the present invention may be appropriately selected depending on the method for selecting a transformant, and examples thereof include a gene encoding drug resistance, a gene complementing auxotrophy and the like. These DNA sequences and gene markers are operably linked in the expression vector of the present invention.
- the present invention relates to a host cell transformed with the above expression vector. Since the host cell used here must be capable of replicating the introduced expression vector, it differs depending on the type of the vector used for producing the expression vector.
- an expression vector capable of replicating in the host cell can be prepared depending on the type of the host cell used here. That is, to obtain a transformant expressing the protein of the present invention, the modified protein or a homolog thereof, It is necessary to appropriately combine a host cell and an expression vector, and such a combination is called a host-vector system.
- the host-vector system used in the present invention is not particularly limited, and includes, for example, a system using a microorganism such as Escherichia coli, actinomycetes, yeast, or a filamentous fungus as a host cell, and preferably a system using a filamentous fungus. In these systems, those expressing a fusion protein with another protein can also be used.
- any filamentous fungus may be used.
- a filamentous fungus belonging to the genus Humicola, the genus Aspergillus or the genus Trichoderma is used.
- Particularly preferred examples of these filamentous fungi include Humicola insolens, Aspergillus niger or Aspergillus oryzae, or Trichoderma viride. Is mentioned. Transformation of a host cell with the expression vector of the present invention can be performed according to a method commonly used in the field of genetic engineering.
- the present invention provides a method of culturing the host cell of the present invention, and the method of preparing the protein, modified protein or modified protein of the present invention from a host cell obtained by the culturing or a culture thereof. Relates to a method for producing a protein, comprising a step of collecting their homologs.
- the cultivation of the transformant and its conditions may be essentially the same as those for the microorganism used.
- the method of recovering the target protein may be any of those commonly used in this field. 3.
- the present invention provides a protein of the present invention, a modified protein or a homolog thereof, or The present invention relates to a cellulase preparation comprising a protein produced by the protein production method of the present invention.
- a cellulase preparation is a powder or liquid containing, for example, excipients (eg, lactose, sodium chloride, sorbitol, etc.), preservatives, nonionic surfactants, etc., in addition to the cellulase enzyme.
- excipients eg, lactose, sodium chloride, sorbitol, etc.
- preservatives eg., lactose, sodium chloride, sorbitol, etc.
- nonionic surfactants e.
- the cellulase preparation of the present invention includes, as the cellulase enzyme, a protein of the present invention, a modified protein or a homolog thereof, or a protein produced by the protein production method of the present invention (hereinafter, referred to as “protein of the present invention”). Is included.
- the cellulase preparation of the present invention may contain, in addition to the protein and the like of the present invention, other cellulase enzymes, for example, cellobiohydrolase, ⁇ -darcosidase, and endoglucanase other than the present invention. .
- Non-dusted granules one of the cellulase preparations, can be manufactured using conventional dry granulation methods. That is, the protein of the present invention in a powdered state is converted into a neutral and endoglucanase activity such as bentonite and montmorillonite, which are neutral and do not affect endoglucanase activity such as sodium sulfate and sodium chloride. After mixing with one or more minerals that do not affect, or one or more neutral organic substances typified by starch, granular cellulose, etc., one or more nonionic surfactants or fine powder Add the turbid suspension and mix or knead thoroughly.
- a neutral and endoglucanase activity such as bentonite and montmorillonite, which are neutral and do not affect endoglucanase activity such as sodium sulfate and sodium chloride.
- a synthetic polymer typified by polyethylene glycol, which binds solids, or a natural polymer such as starch is appropriately added and kneaded, followed by extrusion granulation using a disc pellet, etc. It is possible to produce non-dusted granules by forming the molded product into a spherical shape with a marmellaizer and then drying.
- the amount of the one or more nonionic surfactants to be added is not particularly limited, but is preferably 0.1 to 50% by weight, more preferably 0 to 50% by weight, based on the whole cellulase preparation of the present invention. 1 to 30% by weight, more preferably 1 to 20% by weight. It is also possible to control oxygen permeation and moisture permeation by coating the surface of the granules with a polymer or the like. It is possible.
- a liquid preparation is prepared by adding a stabilizer for an endoglucanase enzyme such as a synthetic polymer or a natural high molecule to a solution containing the protein or the like of the present invention, and adding inorganic salts or a synthetic preservative as necessary.
- one or more nonionic surfactants can be blended.
- the amount of the one or more nonionic surfactants is not particularly limited, but is preferably 0.1 to 50% by weight, more preferably 0.1 to 50% by weight, based on the whole cellulase preparation of the present invention. -30% by weight, more preferably 1-20% by weight. 4.
- the present invention relates to a method for treating a cellulose-containing fiber, which comprises the step of contacting the cellulose-containing fiber with the protein or the like of the present invention or the cellulase preparation of the present invention.
- Conditions such as the contact temperature, the amount of the protein or the like or the amount of the cellulase preparation can be appropriately determined in consideration of other various conditions.
- the above method can be used to reduce the rate at which the cellulose-containing fibers begin to fluff or to reduce the fluff of the cellulose-containing fibers.
- the above method can be used for weight reduction processing for the purpose of improving the feel and appearance of the cellulose-containing fiber.
- improvement in feel is achieved by reducing the rate at which the feel becomes poor.
- the above method can be used to clarify the color of the colored cellulose-containing fiber.
- the above method also provides for a local change in the color of the colored cellulose-containing fibers.
- colored cellulose-containing fibers eg, denim
- the protein concentrations of various endoglucanases were calculated by HPLC analysis using a TSKgel TMS-250 column (4.6 mml. D. X7.5 cm) (manufactured by Tosoh Corporation).
- the above method can be used to reduce the speed at which the cellulose-containing fiber starts to stiffen or to reduce the stiffness of the cellulose-containing fiber.
- the cellulose-containing fiber can be softened.
- treatment of the cellulose-containing fibers can be accomplished through dipping, washing, or rinsing the fibers. That is, the above method of the present invention can be carried out by treating the cellulose-containing fiber during washing.
- the treatment of the fiber may optionally involve adding the protein or the like or the cellulase preparation of the invention to the water in which the fiber is or is soaked during soaking or rinsing. May be implemented.
- the present invention relates to a detergent additive comprising the protein or the like of the present invention or the cellulase preparation of the present invention in the form of non-dispersible granules or a stabilized liquid. Or a detergent composition comprising the cellular preparation of the present invention.
- the detergent composition may also contain a surfactant (which may be anionic, nonionic, cationic, amphoteric or zwitterionic or a mixture thereof).
- the detergent composition may also contain other detergent components known in the art, such as builders, bleaches, bleach activators, corrosion inhibitors, sequestrants, soil release polymers, fragrances, and other enzymes. (Tase, lipase, amylase, etc.), enzyme stabilizer, formulation aid, optical brightener, foaming accelerator and the like.
- Typical anionic surfactants are linear alkyl benzene sulfonate (LAS), alkyl sulfate (AS), alpha olefin sulfonate (A0S), polyoxyethylene alkyl ether sulfate (AES) ,-Sulfo fatty acid ester salts (-SFMe) and alkali metal salts of natural fatty acids.
- nonionic surfactants include polyoxyethylene alkyl ether (AE), alkyl polyethylene glycol ether, nonylphenol polyethylene glycol ether, fatty acid methyl ester ethoxylate, sucrose or dalco fatty acid ester, and alkyl darco. Examples include sides and esters of polyethoxylated alkyl darcosides.
- the use of the evening protein or the like or the cellulase preparation of the present invention in a detergent composition improves grain soil removal, color clarification, hair removal, depiling, and hand roughness reduction. be able to.
- the present invention relates to a method for deinking waste paper, which comprises using the protein or the like of the present invention or the cellulase preparation of the present invention in the step of deinking by treating the waste paper with a deinking chemical. .
- the protein etc. or cellulase preparation of the present invention deinks when used on waste paper. It is useful in the process of manufacturing recycled paper from waste paper to improve the efficiency of recycling. According to the above deinking method, the residual ink fibers are significantly reduced, so that the whiteness of the used paper can be improved.
- the de-Inki chemicals generally may be a drug for use in waste paper de-Inki, but are not limited to, for example, NaOH, Na 2 C0 3, etc. alkali, silicate source one da, hydrogen peroxide, phosphates, Examples include anionic surfactants, nonionic surfactants, and collecting materials such as oleic acid, and auxiliary agents include pH stabilizers, chelating agents, and dispersants.
- waste paper to which the above-mentioned deinking method can be applied is not particularly limited as long as it is generally called waste paper.
- waste paper For example, newspaper waste paper, magazine waste paper and lower- to middle-grade waste waste paper containing mechanical pulp and chemical pulp may be used. Examples include high quality waste paper made of pulp and printed waste paper such as coated paper.
- the above-described deinking method can be applied to paper to which ink has been attached, even if the paper is not generally used paper.
- the present invention relates to a method for improving the drainage of paper pulp, comprising the step of treating paper pulp with the protein or the like of the present invention or the cellulase preparation of the present invention. According to this method, it is considered that the drainage of paper pulp is significantly improved without a significant decrease in strength.
- the pulp to which the method can be applied is not particularly limited, and examples thereof include waste paper pulp, recycled paperboard pulp, kraft pulp, sulfite pulp, processing heat treatment, and other high yield pulp.
- the present invention relates to a method for improving digestibility of animal feed, comprising a step of treating the animal feed with the protein or the like of the present invention or the cellulase preparation of the present invention.
- Rhizopusoryzae CP96001 strain was obtained under the accession number of FERM BP-68 89 under the Patent Organism Depositary Center, National Institute of Advanced Industrial Science and Technology, Japan No.-6) Pico Deposited on April 21, 1997.
- Mucor circinelloides CP99001 strain was obtained under the accession number of FER M BP-6890 under the National Institute of Advanced Industrial Science and Technology (AIST), Patent Organism Depositary (1-1-1, Higashi, Tsukuba, Ibaraki, Japan 1 Central No. 6 ) Was deposited on July 2, 1999.
- Phycomycesnitens CP99002 strain was obtained under the accession number of FERM BP-6891 under the Patent Organism Depositary Center, National Institute of Advanced Industrial Science and Technology (1-1-1 Higashi, Tsukuba, Ibaraki, Japan 1 Deposited with Chuo No. 6) on July 2, 1999.
- the E. coli JM109 strain transformed with the expression vector PMKD01 used in the present invention was obtained under the accession number of FERM BP-5.974 (Original deposit: FERM P-15730, Original deposit: July 12, 1996). Deposited at the Patent Organism Depositary Center, National Institute of Advanced Industrial Science and Technology (Tsukuba-Higashi 1-chome, 1-Chuo No. 6 Ibaraki, Japan).
- the Humicola insolens MN200_1 which can be a host of the expression vector of the present invention is obtained from FERM BP-5977 (Original deposit: FERM P-15736, Original deposit date: July 15, 1996). It has been deposited at the Patent Organism Depositary Center, National Institute of Advanced Industrial Science and Technology (Tsukuba-Higashi 1-1, Ibaraki, Japan). This description includes part or all of the contents as disclosed in the description of Japanese Patent Application No. 2000-354296, which is a priority document of the present application. BEST MODE FOR CARRYING OUT THE INVENTION
- endalcanase activity means CMCase activity.
- CMCase activity is measured by measuring the amount of reducing sugar released after incubating a solution of cellulase enzyme and carboxymethyl cellulose (CM (manufactured by Tokyo Chemical Industry Co., Ltd.)) for a certain period of time. The amount of enzyme that produces reducing sugars equivalent to ⁇ mol glucose is defined as one unit.
- mRNA was prepared from Humicola 'insolens MN200-1 (FERM BP-5977), and cDNA was synthesized with reverse transcriptase to prepare a library.
- Humicola Insolens MN200-1 (FERM BP-5977) in (N) medium (5.0% Avicel, 2.0% yeast extract, 0.1% polypeptone, 0.03% calcium chloride, 0.03% magnesium chloride, pH6.8) for 2 days
- N medium
- the cells were cultured, and the cells were collected by centrifugation (3500 rpm, 10 minutes). 3 g of the cells were washed with sterile water, frozen in liquid nitrogen, and ground in liquid nitrogen using a mortar and pestle.
- Total RNA was isolated from the ground cells by IS0GEN (manufactured by Nippon Gene) in accordance with the attached manual, and the total RNA was confirmed as a stained image by formaldehyde agarose gel electrophoresis.
- RNA was eluted and isolated by applying to an oligo (dT) cellulose column using mRNA Purification Kit (Amersham Pharmacia Biotech) according to the attached manual. Furthermore, mRNA was confirmed as a smeared image by formaldehyde-agarose gel electrophoresis.
- CDNA was synthesized from 5 g of the mRNA prepared in (2) using the Time Saver cDNA Synthesis Kit (Amersham Pharmacia Biotech) according to the attached manual. 4 Preparation of cDNA library
- the blunt ends of all synthesized cDNAs are included in the Time Saver cDNA Synthesis Kit described above! ⁇
- the RI-I adapter was connected according to the attached manual. The entire amount of this DNA fragment was ligated to the ⁇ RI arm of a phage vector 1 and ⁇ cloning kit (manufactured by Stratagene) using DNA Ligation Kit Ver.2 (manufactured by Takara Shuzo Co., Ltd.). It was dissolved in 10 mM Tris-HCl (pH 8.0, 1 mM EDTA) buffer. The thus obtained recombinant phage vector was subjected to in vitro packaging using Gigapack III Plus Packaging Extract (Stratagene) according to the attached manual.
- Gigapack III Plus Packaging Extract Stratagene
- the recombinant phage was infected with Escherichia coli XL1-Blue MRF 'and cultured on a plate to form plaques, thereby obtaining a phage library.
- the target gene was cloned.
- the cDNA prepared in (1) -3 was transformed into type II, and the DNA was amplified by PCR based on information on the partial amino acid sequence of cellulase NCE5.
- PCR was performed using 1.25 units of LA in cDNA of 1 in 501 reaction solutions.
- Tad DNA The reaction was carried out using a polymerase (manufactured by Takara Shuzo Co., Ltd.) and the attached buffer, 0.2 mM dNTP, 10 DMS0, and 1 M primers under the following conditions. 1 minute at 94, (94.0 ° C for 30 seconds, 55. (TC 30 seconds, 72.0 for 1 minute) X 25 times, 72.0 ° C for 5 minutes. This reaction amplifies about 500 bp of DNA, which is then transferred to DYEnamic ET.
- the 500 bp DNA fragment lOOng amplified by the PCR method was labeled in advance with an ECL direct DNA / RNA labeling detection system (Amersham Pharmacia Biotech).
- the phage plaques prepared in (1) -4 were transferred to a Hybond-N + nylon transfer membrane (Amersham Pharmacia Biotech), alkali-treated with 0.4 N sodium hydroxide, and the recombinant phage DNA on the membrane was removed. After denaturation to a single strand, the DNA was washed with 5 XSSC (1XSSC; 15 mM trisodium citrate, 150 mM sodium chloride) and air-dried to fix DNA. After that, according to the kit manual, high predication was carried out, a detection reaction was performed, and light was exposed to FUJI MEDICAL X-RAY FILM (manufactured by Fuji Photo Film Co., Ltd.) to obtain six positive clones.
- FUJI MEDICAL X-RAY FILM manufactured by Fuji Photo Film Co., Ltd.
- DNA was prepared from positive clones as plasmid DNA according to the manual attached to the kit.
- a plasmid in which a DNA fragment was cloned into pBluescript SK (1) was prepared from E. coli S0LR TM resistant to ampicillin, and this was used as a template in (2). Using the N-terminal and T-43.0 primers, PCR was performed under the same conditions as described above. As a result, an amplification product of 500 bp was obtained with one plasmid. Therefore, it was predicted that the target DNA had been cloned into this plasmid. ⁇ Digested with RI and subjected to agarose gel electrophoresis.
- nucleotide sequence of the ⁇ RI fragment was determined in the same manner as described above using primers for T3 and # 7 sequencing. As a result, the nucleotide sequence contained 0RF of 672 bp, and the nucleotide sequence and the amino acid sequence deduced from the 0RF are shown in SEQ ID NO: 39 and SEQ ID NO: 38 in the sequence listing, respectively.
- sequence of 1 to 18 amino acids of this 0RF was considered to be a signal sequence for secreting this protein extracellularly.
- the expression vector in Humicola's Insolens MN200-1 was constructed as follows using plasmid pJDOl (WO00 / 24879, Example D1 (2) (see W)).
- a primer was designed to contain a sequence immediately upstream of the start codon and ⁇ ⁇ immediately downstream of the stop codon so that it could be ligated to the ⁇ iHI site of the plasmid pJDOl, and amplified by PCR.
- the primers for mutagenesis were designed as follows.
- the PCR reaction was performed under the same conditions as above using the positive recombinant pBluescript SK (-) plasmid obtained in Reference Example 1 as a template.As a result, the DNA was approximately 670 bp in 1.0% agarose gel electrophoresis. Since the amplified product of the fragment was confirmed, unreacted substances were removed using Micro Spin S-400 HR Columns (manufactured by Amersham Pharmacia Biotech), and ethanol precipitation was performed, followed by digestion with iHI.
- the aforementioned plasmid pJDOl was digested with ⁇ , separated by 0.8% agarose gel electrophoresis, and a DNA fragment of about 8.0 Kb was recovered using the aforementioned Sephaglas BandPrep Kit. Was dephosphorylated according to the attached manual.
- the plasmid pNCE5Bam obtained in 1 was also digested with ⁇ , a 670 bp DNA fragment was recovered, and each was ligated with DNA Ligation Kit Ver. 2 to obtain an expression plasmid pJND-c5.
- Humicola-Insolens MN200-1 (FERM BP-5977) was cultured in (S) medium at 37, and after 24 hours, cells were collected by centrifugation at 3000 rpm for 10 minutes.
- the composition of the (S) medium was the same as that of (N) medium described in Reference Example 1 except that glucose (3.0%) was added and Avicel was removed. The obtained cells were washed with 0.5 M sucrose and filtered through a 0.45 ⁇ m filter.
- Protoplastase solution (3 mg / ml) 3-glucuronidase, lmg / ml Chitinase lmg / ml Zymolyase 0.5 M sucrose 10 ml Suspended in water.
- the mixture was shaken at 30 ° C. for 60 to 90 minutes to make the mycelium protoplast. After filtering this suspension, centrifugation was performed at 2500 rpm for 10 minutes to collect protoplasts, and the SUTC buffer (0.5%) was collected. The cells were washed with M sucrose, 10 mM calcium chloride, and 10 Tris-HCl (pH 7.5)).
- the protoplasts prepared as described above were suspended in 1 mL of SUTC buffer solution, and a 10 / g DNA (TE) solution (101) was added to 100 L of the suspension, and the mixture was allowed to stand on ice for 5 minutes.
- a 10 / g DNA (TE) solution 101 was added to 100 L of the suspension, and the mixture was allowed to stand on ice for 5 minutes.
- 400 L of a PEG solution (60% PEG 4000, 10 mM calcium chloride, 10 mM Tris-HCl (pH 7.5)) was added, and the mixture was allowed to stand on ice for 20 minutes, and then 10 ml of SUK buffer was added. Centrifugation was performed at 2500 rpm for 10 minutes.
- the collected protoplasts were suspended in 1 mL of SUT: buffer, centrifuged at 4000 rpm for 5 minutes, and finally suspended in 100 L of SUTC buffer.
- Protoplasts treated as described above are placed on a YMG medium (1% glucose, 0.4% yeast extract, 0.2% malt extract, 1% agar (pH 6.8)) supplemented with hygromycin (200 g / ml). Then, the cells were overlaid with YMG soft agar, cultured at 37: 5 for 5 days, and the formed colonies were used as transformants.
- a YMG medium 1% glucose, 0.4% yeast extract, 0.2% malt extract, 1% agar (pH 6.8)
- hygromycin 200 g / ml
- Plasmid pl8-1 containing the codon-optimized endoglucanase gene RCE I is digested with the restriction enzyme ⁇ ) HI to obtain the codon-optimized endoglucanase gene.
- Plasmid PR1H4 was prepared by cloning the fragment containing the fragment into the ligation site of plasmid PUC118. Using this PR1H4 as a type II, the first-stage PCR reaction was performed using TaKaRa LA PCR in vitro Mutagenesis Kit (Takara Shuzo) with two synthetic DNAs of RC-43F.RC-43R as primers. The reaction conditions were in accordance with the manual attached to the kit. The sample after the reaction was separated by agarose gel electrophoresis to obtain a gene fragment 43-X2 of about 650 bp.
- the plasmid pJND-c5 containing the NCE5 gene which is originally a family 45-endalcanase that does not have a cellulose-binding region, described in Reference Example 2, was type II, and two synthetic DNAs of NX-43F and NX-43R were used.
- primers as TaKaRa LA PCR in vitro Mutagenesis The first-stage PCR was also performed using Kit (Takara Shuzo). The reaction conditions were in accordance with the manual attached to the kit. The sample after the reaction was separated by agarose gel electrophoresis to obtain a gene fragment 43-XI of about 120 bp.
- RC-43F CACCACGCGCTACTGGGACT (SEQ ID NO: 20);
- RC-43R GGATCCTGCGTTTACTTGC (SEQ ID NO: 21);
- NX-43F GGATCCTGGGACAAGATG (SEQ ID NO: 22);
- NX-43R GCACGACGGCTTGCAGC (SEQ ID NO: 23)
- Annealing was performed using PCR fragments 43-X1 and 43-X2 and TaKaRa LA PCR in vitro Mutagensis Kit.
- a second-stage PCR reaction was performed.
- primers two synthetic DNAs, NX-43F and RC-43R, were used, and the reaction conditions were in accordance with the manual attached to the kit.
- the sample after the reaction was separated by agarose gel electrophoresis to obtain a gene fragment H43 of about 700 bp. This fragment was digested with the restriction enzyme ⁇ jHI to prepare a plasmid PR1H43 which was ligated to the plasmid site of plasmid PUC118 using TaKaRa DNA Ligation Kit Ver.
- the reaction conditions for enzymes and the like were in accordance with the manual conditions attached to the kit.
- the obtained plasmid PR1H43 was subjected to a sequence reaction using Cy5-Auto Read Sequencing Kit (Amersham Pharmacia), and its sequence was analyzed using a DNA sequencer ALFred (Amersham Pharmacia).
- the primer for the reaction the M13 primer attached to the kit was used.
- NCE5 N-terminal secretion signal
- CAD catalytic region
- amino acid residues 19 to 24 are the N-terminal sequence of NCE5; amino acid residues 25 to 36 are a sequence derived from NCE5 or RCE I; The sequence after the amino acid residue is a sequence derived from the catalytic region of RCEI.
- Amino acid substitutions were introduced into the RCE I gene using the PR1H4 of Example 1 as type III and RC-A121P, which is a synthetic DNA, and TaKaRa LA PCR in vitro Mutagenesis Kit (Takara Shuzo).
- the reaction conditions were in accordance with the manual attached to the kit.
- the sample after the reaction was separated by agarose gel electrophoresis to obtain a gene fragment L9 of about 1 Kbp. This fragment was digested with the restriction enzyme iHI to prepare a plasmid pRlL9 which was ligated to the ⁇ site of the plasmid PUC118 using TaKaRa DNA Ligation Kit Ver.
- the reaction conditions for the enzyme and the like were in accordance with the conditions in the manual attached to the kit.
- the obtained plasmid PR1L9 was subjected to a sequence reaction using a Cy5-Auto Read Sequencing Kit (manufactured by Amersham-Pharmacia), and its sequence was analyzed using DNA Sequencer ALFred (manufactured by Amersham-Pharmacia). Synthetic as primer for reaction
- H4-R1 a DNA, was used. As a result, it was confirmed that one alanine was changed to proline and the sequence was as expected.
- RC-A121P GACTGCTGCAAGCCGTCGTGC (SEQ ID NO: 42);
- H4-R1 GTTGCACATGTAGGAGTTGC (SEQ ID NO: 43)
- a region encoding the secretory signal sequence of the RCE I gene Gene was amplified.
- PCR reaction was performed using TaKaRa Ex TaQ Polymerase (Takara Shuzo) and one of the attached buffers.
- the temperature of the thermal cycler (Perkin Elmer Co., Ltd .: 2400-R) was 94-1 min, 5 (TC-2 min, and 72 ° C-1 min) according to the conditions of the attached manual for the composition of the reaction solution.
- the sample after the reaction was separated by agarose gel electrophoresis to obtain a gene fragment 45-X1 of about lOOto.
- the region encoding the catalytic region (CAD) of the RCEI gene was amplified using PR1L9 as type III. PCR was performed using two synthetic DNAs, RC-452F and RC-452R, as primers and TaKaRa Ex Taq Polymerase (Takara Shuzo) and one of the attached buffers. Regarding the composition of the reaction solution, the temperature conditions of the thermal cycler (Pa-Kin Elmer 1400-2R) were set to 94-1 min, 50-2 min, and 72 ° C-1 min. Cycle. The sample after the reaction was separated by agarose gel electrophoresis to obtain a gene fragment 45-X2 of about 630 bp.
- RC-451F GCGGATCCTGGGACAAGATG (SEQ ID NO: 25);
- RC-451R GCCTGCAGAGCGGCGGAGGCCATC (SEQ ID NO: 26);
- RC-452F GCCTGCAGGGAAAGTACAGCGCTGT (SEQ ID NO: 27);
- RC-452R GCGGATCCTGCGTTTACTTGC (SEQ ID NO: 28)
- the PCR fragments 45-X1 and 45-X2 were digested with the restriction enzyme £ ⁇ 1, ligated using TaKaRa DNA Ligation Kit Ver. 1, and then digested with the restriction enzyme 3 ⁇ 4il to obtain DNA fragment 45- ⁇ 3.
- a PCR reaction was performed using 45-X3 as a type II, two synthetic DNAs of RC-451F and RC-452R as primers, and TaKaRa Ex TaQ Polymerase (Takara Shuzo) and one of the attached buffers.
- the temperature condition of the thermal cycler (Pa-Kin Elmer Co., Ltd .: 2400-R) was set to 25 ° C for 1 minute at 94 ° C, 50-2 minutes, and -1 minute at 72. Cycle.
- the sample after the reaction was separated by agarose gel electrophoresis to obtain a gene fragment H45 of about 700 bp. This fragment was digested with restriction enzyme 3 ⁇ 4 ⁇ and ligated to the BamHI site of plasmid PUC118 using TaKaRa DNA Ligation Kit Ver. Plasmid PR1H45 was prepared.
- the reaction conditions were in accordance with the manual attached to the kit.
- the amino acid sequence of RCEI mutant H45 deduced from the nucleotide sequence is shown below.
- the 1st to 23rd amino acid residues are the signal peptide derived from RCEI
- the 24th amino acid residue is the N-terminal sequence of RCEI
- the 25th to 26th amino acid residues are This is a sequence introduced by the primer used
- the sequence after the 27th amino acid residue is a sequence derived from the catalytic region of RCEI.
- Plasmid pJDOl (see WO00 / 24879, Example D1 (2) (b)) was digested with ⁇ HI, and dephosphorylated using alkaline phosphatase derived from Escherichia coli (manufactured by Takara Shuzo Co., Ltd.) according to the attached manual.
- the plasmids pRlH43 and PR1H45 obtained in Example 2 were similarly digested with 3 ⁇ 4 ⁇ to recover a DNA fragment of about 700 bp, and each was ligated with DM Ligation Kit Ver. 1, and the expression plasmid pJND-H43, pJND-H45 was obtained.
- Humicola-Insolens MN200-1 (FERM BP-5977) was converted to Plasmid H PJND-H43, pJND-H45 and PJI4D01 containing codon-optimized RCEI gene (RCEI with codon optimized for expressing Rhizopus-derived RCEI in Humicola) Gene-containing plasmid: WO00 / 24879 (see Example D3 (3)).
- Humicola-Insolence M 200-1 (FERM BP-5977) Culture at 37 ° C in a medium (3.0% glucose, 2.0% yeast extract, 0.1% polypeptone, 0.03% calcium chloride, 0.03% magnesium chloride, pH 6.8), and after 24 hours, centrifuge at 3000 rpm for 10 minutes And collected. The obtained cells were washed with 0.5 M sucrose and filtered through a 0.45 xm filter. Protoplast enzyme solution (5 mg Zml Novozyme 234 (Novo), 5 mg / ml Cellulase Onozuka® -10 (manufactured by Yakult), 0.5M sucrose). The mycelium was shaken at 30 ° C for 60 to 90 minutes to protoplast.
- the protoplasts prepared as described above were suspended in lm1 of SUTC buffer solution, 10 g of DNA (TE) solution (10 ⁇ l) was added to 1001 of the suspension, and the mixture was allowed to stand on ice for 5 minutes. Next, a 4001 PEG solution (60% PEG4000, 10 mM calcium chloride, 1 OmM Tris-HCl (pH 7.5)) was added, the mixture was allowed to stand on ice for 20 minutes, and then 10 ml of SUTC buffer was added. Centrifuged at 2500 rpm for 10 minutes. The collected protoplasts were suspended in lm1 of SUTC buffer, then centrifuged at 4000 rpm for 5 minutes, and finally suspended in 1001 of SUTC buffer.
- the protoplasts thus treated were added to a YMG medium containing 200 g / m1 of hygromycin B (1% glucose, 0.4% yeast extract, 0.2% maltodex, 1% agar (pH 6.8). )) Overlaid with YMG soft agar and cultured at 37 ⁇ for 5 days, the formed colonies were used as transformants.
- hygromycin B 1% glucose, 0.4% yeast extract, 0.2% maltodex, 1% agar (pH 6.8).
- the resulting transformant is cultured at 37 ° C in (N) medium (5.0% Avicel, 2.0% yeast extract, 0.1% polypeptone, 0.03% calcium chloride, 0.03% magnesium chloride, pH 6.8), and centrifuged. The culture supernatant from which solids were removed by separation was used as an enzyme sample.
- N (N) medium
- the purified Humicola insolens transformant was transformed into a (N) medium (5.0% Avicel, 2.0% yeast extract, The cells were inoculated into 0.1% polypeptone, 0.03% calcium chloride, 0.03% magnesium chloride, pH 6.8) and cultured with shaking at 37.
- Transformants into which plasmids pJND-H43 and pJND-H45 had been introduced were cultured for 5 to 6 days.
- the transformant into which the plasmid pJ I4D01 has been introduced has no degradation in the linker part, and the sample in which it is desired to obtain the RCE I enzyme while maintaining the cellulose binding region is cultured for 4 days.
- the culture was extended for more than 4 days and cultured for 5 to 6 days.
- Each of the obtained cultures was centrifuged at 7,000 rpm for 20 minutes to remove the cells, and the culture supernatant was used as a crudely purified cellulase preparation.
- the culture solution of the transformant into which the plasmid pJND-H43 was introduced (hereinafter referred to as “H43 culture solution”) was prepared by adding plasmid pJND-H45 to the fraction obtained when the concentration of ammonium sulfate was 1.2 M.
- H45 culture medium the fraction obtained when the concentration of ammonium sulfate was 0.9 M was added to the fraction obtained by introducing the plasmid pJI4D01.
- H4 culture solution For those cultured for 4 days (hereinafter referred to as “H4 culture solution”), the transformants obtained by introducing the plasmid pJI4D01 into the fraction obtained when the ammonium sulfate concentration was 0.6 M were used. Among them, the culture solution in which the culture was prolonged and the decomposition was promoted (hereinafter referred to as “H4 degraded product”), the fraction obtained at 0.9 M showed strong lyocell fluff removal activity. Was done. Therefore, 100m each of these fractions was collected.
- the H43 culture solution contained the fraction obtained when the ammonium sulfate concentration was 1.35M
- the H45 culture solution contained the fraction obtained when the ammonium sulfate concentration was 1.05M
- the H4 culture solution contained in the fraction obtained when the ammonium sulfate concentration was 1.05M.
- the fraction obtained when the ammonium sulfate concentration was 0.75 M and the fraction obtained when the ammonium sulfate concentration was 1.05 M showed the lyocell fuzz removal activity. Therefore, 40 ml of these fractions were collected.
- the obtained active fraction was prepared by diluting it to 150 ml of 50 acetate buffer (pH 4.0), and was previously equilibrated with 50 mM acetate buffer (pH 4.0). The mixture was applied to a MonoS 10 / 10HR column (Amersham-Pharmacia) at a flow rate of 2 ml min. Next, elution was carried out at a flow rate of S mlZmin from a 50 mM acetate buffer (pH 4.0) to a 1 M NaCl solution in 50 mM acetate buffer (pH 5.0) by a 0.1 M stepwise elution method. Painted.
- the fractions obtained when the NaC1 concentration was about 0.2 to 0.3 M showed lyocell fluff removal activity. Therefore, a fraction 6 ml of which the activity was most strongly recognized was collected. These fractions were analyzed by SDS-PAGE.
- the protein purified from the H43 culture solution, the H45 culture solution, and the H4 degradation product showed a single band of about 25 Kda, and the H culture solution showed a single band of about 40 KDa.
- SDS-PAGE was performed using a Tefco system. That is, an electric bath (No. 03-101), a power supply (Mode 1: 3540), a gel 10% (01-015), and a buffer kit for SDS-PAGE (06-0301) were used. The electrophoresis conditions were 18 mA / 10 minutes, then 2 OmA / 90 minutes. For detection of proteins after electrophoresis, silver staining was performed using 2D-silver staining reagent for electrophoresis ⁇ II “Daiichi” (Daiichi Pure Chemicals). As a standard protein as a marker, Bio'Rad SDS-PAGE molecular weight standard protein'LowRange (161-0304) was used.
- the lyocell fluff removing activity was measured according to the following method.
- the pre-dyed lyocell knit fabric (manufactured by Toshima Co., Ltd.) was fluffed with a surfactant and a rubber ball in a large washer. After that, the fluffed lyocell knit fabric (9 cm x 10 cm, weight of about 2 g, manufactured by Toshima Co., Ltd.) was sewed in a tubular shape, and the fluff was removed by various enzymes under the following conditions. By this process, the protein concentration required to completely remove the fluff inside the cylindrical dough was calculated.
- the protein concentrations of various endoglucanases were determined by HPLC analysis using a TSKgel TMS-250 column (4.6 mml. D. X7.5 cm) (manufactured by Tosoh Corporation) in 0.05% TFA (trifluoroacetic acid) in acetonitrile. The concentration was calculated from the peak area at UV280nm of various endoglucanases eluted at a flow rate of 1. Oml / min using a linear gradient from 0% to 80%. As the standard, purified NCE4, whose protein concentration had been measured in advance using a protein assay kit (manufactured by Bio-Rad Laboratories), was also subjected to HPLC analysis in the same manner.
- Albumin Standard Bovine serum albumin, fraction V, manufactured by PIERCE
- Purified NCE4 (first of SEQ ID NO: 18) 18-1088 bases) was isolated and purified from a Humicola insolens culture according to the method described in International Publication WO098 / 03640.
- each fraction was subjected to SDS_PAGEmini (manufactured by Tefco), followed by electroblotting onto a PVDF membrane to obtain Coomassie Brilliant Blue R250 (Nacalai Tesque). ), Destained, washed with water and air-dried. A portion where the target protein was plotted was cut out from this, and the cut out was used for Protein Sequencer Model 492 (manufactured by PE Applied Biosystems) to analyze the N-terminal amino acid sequence.
- the amino acid sequence of the enzyme purified from the H45 culture solution, H4 culture solution, and H4 degradation product could be read without any problem.However, for the enzyme purified from the H43 culture solution, no signal due to Edman degradation was obtained, and the N-terminal amino acid was not detected. The modification was found to be protected. Therefore, after immersing in 0.5% polyvinylpyrrolidone (molecular weight: 40,000: manufactured by Sigma) in 100 mM NaCl solution for 30 minutes at 37 ° C to block protein-unbound portions on the membrane, Piu PyroglutamateAminopeptidase (Takara Shuzo) For 5 hours at 50 ° C. Thus, the modified N-terminal residue was removed, and sequencing was performed again. The sequences obtained were as follows.
- the fluff removal treatment of 6cmX 8cni was performed under the following conditions, and the amount of fluff left unremoved was visually determined. The amount of the purified enzyme that caused the remaining amount of fluff to be 50% was measured. BCA for measuring protein The assay was performed using Protein Assay Reagent (Pierce) according to the conditions of the attached manual.
- the purified RCE I protein (RCE I-H4 (40KDa)) of 40KDa and the purified RCE I protein of 25KDa (RCE I-H43 (25KDa), RCE I-H45 (25KDa) and RCE I-H4 (25KDa)) Since the estimated molecular weight is about 1.5 times larger than that, even if the quantified amount of protein is the same, if converted to the number of enzyme molecules contained in it, the purified RCE I protein of 40 KDa will be closer to the protein. This means that only 25 kDa of the purified RCE I protein contains only about 2Z3 of the enzyme.
- Reaction pH The reaction was performed at pH 7 (prepared using 1 mM phosphate buffer and deionized water). Four 16 g rubber balls were added to the treatment solution together with the enzyme solution.
- RCE I an endodalcanase derived from zygote
- CBD cellulose-binding domain
- the 25 kDa protein lacking the protein exhibits a much higher level of fluff removal activity of cotton fabric than the 40 kDa protein carrying the cellulose-binding domain (CBD).
- Example 7 Comparison of fluff removal specific activity of lyocell dough between RCE I lacking the cellulose binding region and RCE I retaining the cellulose binding region
- Example 5 Using the endorcanase purified solely in Example 5, the lyocell dough (6 cm x 8 cm, manufactured by Toyoshima Co., Ltd.) was subjected to a fluff removal treatment under the same conditions as those described in Example 4 with an improvement. The amount of fluff left unremoved was visually determined, and the amount of purified enzyme required for complete removal of fluff was measured. The amount of protein was measured using BCA Protein Assay Reagent (Pierce) according to the conditions of the attached manual.
- the purified RCE I protein of 40KDa (RCE I-H4 (40KDa)) and the purified RCE I protein of 25KDa (RCE I-H43 (25KDa), RCE I-H45 (25KDa) and RCE I-H4 (25KDa)) Since the estimated molecular weight is about 1.5 times larger than that, even if the quantified amount of protein is the same, if converted to the number of enzyme molecules contained in it, the purified RCE I protein of 40 KDa will be closer to the protein. This means that only 25 kDa of the purified RCE I protein contains only about 2-3 enzymes.
- Reaction pH The reaction was carried out at pH 6 (prepared using 10 mM acetate buffer and deionized water). About 16 g rubber poles were added to the treatment solution together with the enzyme solution.
- RCE I which is an endalkanase derived from zygote
- the 25KDa protein lacking the cell binding region (CBD) exhibits a higher level of lyocell dough removal activity than the 40KDa protein retaining the cellulose binding region (CBD).
- Example 8 Comparison of fluff removal specific activity of cotton fabric of RCE I lacking a cellulose binding region and RCE I retaining a cellulose binding region under conditions of alkali, low temperature, and presence of a surfactant
- a cotton knit fabric fluffed in a large washer using the endalcanase purified solely in Example 5 (a cotton smooth knit No. 3900 manufactured by Nitto Boseki Co., Ltd.
- the fluff removal processing of the fabric (6 cm x 8 cm) that has been reactively dyed brown by the company is performed under the following conditions, the amount of fuzz remaining without being removed is visually determined, and the remaining amount of fuzz is reduced to 50%.
- the amount of the purified enzyme added was measured.
- the amount of evening protein was measured using BCA Protein Assay Reagent (Pierce) according to the conditions of the attached manual.
- the purified RCE I protein of 40KDa (RCE I-H4 (40KDa)) is the same as the purified RCE I protein of 25KDa (RCE I-H43 (25KDa), RCE I-H45 (25KDa) and RCE I-H4 (25KDa)). Since the estimated molecular weight is about 1.5 times larger than that, even if the quantified amount of protein is the same, if converted to the number of enzyme molecules contained in it, the purified RCE I protein of 40 KDa will be closer to the protein. This means that only 25 kDa of the purified RCE I protein contains only about 2-3 enzymes.
- Reaction pH The reaction was performed at pH 10 (prepared using 5 mM sodium carbonate buffer and deionized water).
- the treatment solution contains a non-aqueous solution with a final concentration of lOOppm, together with the enzyme solution and four rubber poles of about 16 g.
- On-surfactant Persoft NK-100 (Nippon Yushi Co., Ltd.) was added.
- RCEI-H4 (25KDa) 52 g
- RCE I an endalcanase derived from zygote
- a cotton knit fabric fluffed in a large washer using the endoglucanase purified solely in Example 5 (manufactured by Nitto Boseki Co., Ltd .: Cotton smooth knit No. 3900 was purchased from YAMAMO The fluff is removed from the fabric (6 cm x 8 cm) that has been reactively dyed brown by the company under the following conditions.The amount of fuzz remaining without being removed is visually determined, and the remaining amount of fuzz becomes 50%. The amount of the purified enzyme added was measured. The amount of protein was measured using BCA Protein Assay Reagent (Pierce) according to the conditions of the attached manual.
- Reaction pH The reaction was carried out at pH 7 (prepared using IDIM phosphate buffer solution and deionized water). Four 16 g rubber balls were added to the treatment solution together with the enzyme solution.
- RCEI- ⁇ 4 (25KDa) 18 g Based on the results in Table 5, RCE I-H43 (25KDa), RCEI-H45 (25KDa), RCEI-H4 (25KDa), etc. It can be seen that all of the proteins show a much higher level of cotton fabric fluff removal activity than the 40 kDa protein RCEI-H4 (40 kDa), which retains the cellulose binding domain (CBD). Therefore, regardless of the length of the linker remaining on the N-terminal side of the catalytic domain, the RCE I protein lacking the cellulose-binding domain (CBD) had a 40 KDa retention of the cellulose-binding domain (CBD).
- the cotton fabric has a much higher activity in removing fluff than protein. Regardless of the method of deletion, artificial or non-artificial, the RCEI-H4, a 40 kDa protein retaining the cellulose-binding domain (CBD), was better for the RCE I protein lacking the cellulose-binding domain (CBD). It can be seen that the cotton fabric exhibits fluff removal activity at a much higher level than (40 KDa).
- Example 10 Comparison of fluff removal specific activities of various purified RCE I lyocell doughs lacking the cellulose binding region
- Example 5 Using the endodalcanase purified solely in Example 5, the treatment for removing naps of lyocell dough (6 cm X 8 cni, manufactured by Toshima Co., Ltd.) was carried out under the same conditions as those described in Example 4 except for improvements. The amount of fluff left unremoved was visually determined, and the amount of purified enzyme required for complete removal of fluff was measured. The amount of protein was measured using BCA Protein Assay Reagent (Pierce) according to the conditions of the attached manual.
- purified RCE I protein (RCE I-H4 (40KDa)) of 40KDa and purified RCE I protein of 25KDa (RCE I-H43 (25KDa), RCE I-H45 (25KDa) and RCE I-H4 (25KDa)) Since the estimated molecular weight is about 1.5 times larger than that, even if the quantified amount of protein is the same, if converted to the number of enzyme molecules contained in it, the purified RCE I protein of 40 KDa will be closer to the protein. This means that only 25 kDa of the purified RCE I protein contains only about 2Z3 of the enzyme.
- Reaction pH The reaction was performed at pH 6 (prepared using lOrn acetate buffer and deionized water). Four 16 g rubber balls were added to the treatment solution together with the enzyme solution.
- the lyocell dough exhibits a higher fluff removing activity than the protein of the above.
- the RCE I protein lacking the cellulosic binding domain (CBD) is a 40 kDa protein RCEI-H4 that retains the cellulose binding domain (CBD). It can be seen that the lyocell dough has a higher activity of removing fluff than that of (40 KDa).
- SEQ ID NO: 13 Codon-optimized sequence corresponding to the RCEI protein (SEQ ID NO: 2)
- SEQ ID NO: 17 Common amino acid sequence found in the cellulose-binding domain of family 45 endalcanase
- SEQ ID NO: 24 Recombinant protein
- SEQ ID NO: 29 Recombinant protein
- SEQ ID NOS: 30-35 N-terminal amino acid sequence of recombinant protein
- SEQ ID NO: 38 NCE5 amino acid sequence
- SEQ ID NO: 39 NCE5 cDNA sequence
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Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01997189.4A EP1344820B1 (en) | 2000-11-21 | 2001-11-21 | Zygomycetes-origin endoglucanase lacking cellulose-binding domain |
JP2002545179A JP3970770B2 (ja) | 2000-11-21 | 2001-11-21 | セルロース結合領域を欠失した接合菌由来エンドグルカナーゼ酵素 |
DK01997189.4T DK1344820T3 (en) | 2000-11-21 | 2001-11-21 | Endoglucanase OF Zygomycetes-ORIGIN WITHOUT CELLULOSE BINDING DOMAIN |
US10/432,290 US7445922B2 (en) | 2000-11-21 | 2001-11-21 | Zygomycetes-derived endoglucanase enzyme lacking cellulose-binding domain |
ES01997189.4T ES2542135T3 (es) | 2000-11-21 | 2001-11-21 | Endoglucanasa originada a partir de zigomicetos que carece del dominio de enlace a celulosa |
AU2002224068A AU2002224068A1 (en) | 2000-11-21 | 2001-11-21 | Zygomycetes-origin endoglucanase lacking cellulose-binding domain |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000354296 | 2000-11-21 | ||
JP2000-354296 | 2000-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002042474A1 true WO2002042474A1 (en) | 2002-05-30 |
Family
ID=18826910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/010188 WO2002042474A1 (en) | 2000-11-21 | 2001-11-21 | Zygomycetes-origin endoglucanase lacking cellulose-binding domain |
Country Status (7)
Country | Link |
---|---|
US (1) | US7445922B2 (ja) |
EP (1) | EP1344820B1 (ja) |
JP (1) | JP3970770B2 (ja) |
AU (1) | AU2002224068A1 (ja) |
DK (1) | DK1344820T3 (ja) |
ES (1) | ES2542135T3 (ja) |
WO (1) | WO2002042474A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1291431A1 (en) * | 2000-05-22 | 2003-03-12 | Meiji Seika Kaisha Ltd. | Endoglucanase nce5 and cellulase preparations containing the same |
JP2010516247A (ja) * | 2007-01-18 | 2010-05-20 | ダニスコ・ユーエス・インク、ジェネンコー・ディビジョン | 修飾を受けたエンドヌクレアーゼiiと使用法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2575526T3 (es) * | 2003-12-03 | 2016-06-29 | Meiji Seika Pharma Co., Ltd. | Endoglucanasa STCE y preparación de celulasa que contiene la misma |
US7348172B2 (en) | 2004-04-16 | 2008-03-25 | Ab Enzymes Oy | Method and DNA constructs for increasing the production level of carbohydrate degrading enzymes in filamentous fungi |
DE602005021479D1 (de) * | 2004-04-16 | 2010-07-08 | Ab Enzymes Oy | Verfahren und dna-konstrukte zur erhöhung des produktionsniveaus von kohlenhydrat abbauenden enzymen in filamentösen pilzen |
JP2008525027A (ja) * | 2004-12-23 | 2008-07-17 | ジェネンコー・インターナショナル・インク | 中性セルラーゼ触媒コア及びそれを生産する方法 |
CN101624583B (zh) * | 2008-07-07 | 2012-06-20 | 上海纤化生物科技有限公司 | 纺织专用节能环保型煮漂复合酶制剂的制造工艺 |
CN102174758B (zh) * | 2011-01-26 | 2013-02-13 | 申琳 | 一种包装物的制备方法 |
CN102162198B (zh) * | 2011-01-26 | 2012-11-28 | 申琳 | 一种多酶复合制剂及其制备方法和应用 |
EP2673353A4 (en) | 2011-02-09 | 2014-12-03 | Novozymes As | MIXTURES OF ENZYMES CELLULASES FOR UNBLOCKING AND USES THEREOF |
US12116420B1 (en) | 2019-10-16 | 2024-10-15 | United States of America as represented by the Administrator of NASA and the Secretary of the Interior | Functionalizing biological substrates with bioengineered peptides to bind targeted molecules |
Citations (5)
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WO1994021801A2 (en) * | 1993-03-17 | 1994-09-29 | Genencor International, Inc. | Purification and molecular cloning of eg iii cellulase |
WO1998003640A1 (fr) | 1996-07-24 | 1998-01-29 | Meiji Seika Kaisha, Ltd. | Endoglucanase et preparations a base de cellulase contenant cette enzyme |
WO1998054332A1 (fr) | 1997-05-27 | 1998-12-03 | Meiji Seika Kaisha, Ltd. | Preparation contenant la cellulase sce3 extremement active |
WO2000024879A1 (fr) * | 1998-10-23 | 2000-05-04 | Meiji Seika Kaisha, Ltd. | Preparations a base d'endoglucanases et de cellulase |
WO2001090375A1 (en) * | 2000-05-22 | 2001-11-29 | Meiji Seika Kaisha, Ltd. | Endoglucanase nce5 and cellulase preparations containing the same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DK163591C (da) * | 1985-10-08 | 1992-08-24 | Novo Nordisk As | Fremgangsmaade til behandling af et tekstilstof med en cellulase |
US4832864A (en) * | 1987-09-15 | 1989-05-23 | Ecolab Inc. | Compositions and methods that introduce variations in color density into cellulosic fabrics, particularly indigo dyed denim |
-
2001
- 2001-11-21 ES ES01997189.4T patent/ES2542135T3/es not_active Expired - Lifetime
- 2001-11-21 DK DK01997189.4T patent/DK1344820T3/en active
- 2001-11-21 WO PCT/JP2001/010188 patent/WO2002042474A1/ja active Application Filing
- 2001-11-21 AU AU2002224068A patent/AU2002224068A1/en not_active Abandoned
- 2001-11-21 JP JP2002545179A patent/JP3970770B2/ja not_active Expired - Fee Related
- 2001-11-21 US US10/432,290 patent/US7445922B2/en not_active Expired - Fee Related
- 2001-11-21 EP EP01997189.4A patent/EP1344820B1/en not_active Expired - Lifetime
Patent Citations (5)
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WO1994021801A2 (en) * | 1993-03-17 | 1994-09-29 | Genencor International, Inc. | Purification and molecular cloning of eg iii cellulase |
WO1998003640A1 (fr) | 1996-07-24 | 1998-01-29 | Meiji Seika Kaisha, Ltd. | Endoglucanase et preparations a base de cellulase contenant cette enzyme |
WO1998054332A1 (fr) | 1997-05-27 | 1998-12-03 | Meiji Seika Kaisha, Ltd. | Preparation contenant la cellulase sce3 extremement active |
WO2000024879A1 (fr) * | 1998-10-23 | 2000-05-04 | Meiji Seika Kaisha, Ltd. | Preparations a base d'endoglucanases et de cellulase |
WO2001090375A1 (en) * | 2000-05-22 | 2001-11-29 | Meiji Seika Kaisha, Ltd. | Endoglucanase nce5 and cellulase preparations containing the same |
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AZEVEDO H. ET AL.: "Effects of agitation level on the adsorption, desorption and activities on cotton fabrics of full length and core domains of EGV (humicola insolens) and CenA (cellulomonas fimi)", ENZYME MICROB. TECHNOL., vol. 27, no. 3-5, August 2000 (2000-08-01), pages 325 - 329, XP002909370 * |
HOFFREN, A. -M. ET AL., PROTEIN ENGINEERING, vol. 8, 1995, pages 443 - 450 |
PROC. NATL. ACAD. SCI. USA, vol. 85, 1988, pages 2444 - 2448 |
SCIENCE, vol. 227, 1985, pages 1435 - 1441 |
See also references of EP1344820A4 |
TAKASHIMA S. ET AL.: "Comparison of gene structures and enzymatic properties between two endoglucanases from humicola grisea", J. BIOTECHNOL., vol. 67, no. 2-3, 1999, pages 85 - 97, XP004157885 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1291431A1 (en) * | 2000-05-22 | 2003-03-12 | Meiji Seika Kaisha Ltd. | Endoglucanase nce5 and cellulase preparations containing the same |
EP1291431A4 (en) * | 2000-05-22 | 2004-12-01 | Meiji Seika Kaisha | ENDOCLUCANASE NCES |
JP2010516247A (ja) * | 2007-01-18 | 2010-05-20 | ダニスコ・ユーエス・インク、ジェネンコー・ディビジョン | 修飾を受けたエンドヌクレアーゼiiと使用法 |
Also Published As
Publication number | Publication date |
---|---|
ES2542135T3 (es) | 2015-07-31 |
EP1344820B1 (en) | 2015-06-24 |
US7445922B2 (en) | 2008-11-04 |
EP1344820A4 (en) | 2006-06-14 |
AU2002224068A1 (en) | 2002-06-03 |
JP3970770B2 (ja) | 2007-09-05 |
JPWO2002042474A1 (ja) | 2004-03-25 |
EP1344820A1 (en) | 2003-09-17 |
US20040043400A1 (en) | 2004-03-04 |
DK1344820T3 (en) | 2015-07-13 |
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