WO1998042748A1 - Nouveau polypeptide synthetique - Google Patents
Nouveau polypeptide synthetique Download PDFInfo
- Publication number
- WO1998042748A1 WO1998042748A1 PCT/JP1998/001230 JP9801230W WO9842748A1 WO 1998042748 A1 WO1998042748 A1 WO 1998042748A1 JP 9801230 W JP9801230 W JP 9801230W WO 9842748 A1 WO9842748 A1 WO 9842748A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- leu
- ser
- gin
- arg
- glu
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- 108090000765 processed proteins & peptides Proteins 0.000 title claims abstract description 68
- 229920001184 polypeptide Polymers 0.000 title claims abstract description 65
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- 230000012010 growth Effects 0.000 claims abstract description 21
- 230000003054 hormonal effect Effects 0.000 claims abstract description 5
- 150000001413 amino acids Chemical group 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 12
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/575—Hormones
- C07K14/61—Growth hormone [GH], i.e. somatotropin
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/168—Steroids
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/184—Hormones
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/461—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from fish
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention relates to a novel polypeptide, and more specifically, a polypeptide exhibiting a fish growth hormone-like action, a DNA encoding the same, a vector containing the DNA, a microorganism transformed with the vector, and the microorganism.
- the present invention relates to a method for producing the above-mentioned peptide using the same, and the use of the peptide in promoting the growth of fish and reducing the mortality of fry.
- Growth hormone which is commonly found in mammals, birds, reptiles, amphibians, and fish, is a polypeptide secreted from the pituitary gland, and has been isolated by various research groups and structurally determined. , It has been reported. These growth hormones can be produced in large quantities in microorganisms with advances in genetic engineering, and are being used in many livestock animals. However, fish have been used at the research level, but have not been put to practical use.
- fish growth hormone plays a role in promoting the growth of fish, if it can be used as feed for breeding cultured fish, the time required for shipment will be shortened, which will help to reduce costs.
- natural growth hormone isolated from fish has a certain degree of species specificity.For example, oral administration of tuna growth hormone, which is commercially available as a reagent, to other fish is expected to have some effect. But the effect is not enough.
- the present inventors can use the present invention in common with many kinds of fish, and have a versatile fish growth which exerts an excellent growth promoting effect on fish. Research was conducted to develop polypeptides with hormonal effects.
- the present invention comprises the above amino acid sequence or an amino acid sequence in which one or several amino acids have been deleted, substituted or added to the above amino acid sequence, and has a fish growth hormone action. It provides polypeptides.
- the polypeptide of the present invention can be chemically synthesized by a solid phase method or a liquid phase method known per se, or by a genetic engineering technique using DNA encoding the polypeptide of the present invention. It can also be synthesized biochemically.
- FIG. 1 is a process chart showing the process of constructing the fGH gene of the present invention.
- FIG. 2 is a process chart showing the process of producing the fGH operon.
- FIG. 3 is a process diagram showing the process of incorporating the fGH operator into the multi-mouthing site of Escherichia coli-cyanobacterium shuttle vector pBAX18.
- FIG. 4 is a graph showing the growth promoting effect of fGH polypeptide on carp fry in Test Example 1.
- FIG. 5 is a graph showing the growth promoting effect of fGH polypeptide and tunaGH on carp fry in Test Example 2.
- FIG. 6 is a graph showing the effect of fGH polypeptide on growth of juvenile early cichlids in Test Example 5.
- FIG. 7 is a graph showing the growth promoting effect of fGH polypeptide on juvenile angelfish in Test Example 6.
- polypeptide of the present invention is biochemically
- case of synthesis will be specifically described with reference to examples.
- fGH polypeptide a DNA fragment encoding the polypeptide represented by the amino acid sequence (hereinafter, referred to as “fGH polypeptide”). This DNA is called "fGH gene”.)
- nucleotide sequence of the designed DNA fragment (SEQ ID NO: 2 in the sequence listing) is as follows: o
- the designed DNA is divided into several blocks, for example, 21 blocks of about 60 bases each (see Fig. 1. (A)), and the oligonucleotide of each block is subjected to DNA synthesis by the phosphoramidite method. It synthesize
- Each synthesized oligonucleotide (excluding No. 1 and No. 11) 3 ⁇ g Takara Use a kination kit (oligonucleotide 3 lO kination buffer 2 ⁇ 1, lOOmM ATP (Pharmacia) 2 zl, polynucleotide kinase 1 ⁇ 1 (10 units) and sterile water 12 ⁇ 1) at 37 ° C for 90 Incubate for a minute. After the reaction, heat-treat at 90 ° C for 5 minutes to inactivate the enzyme, and then perform phenol-cloth form and black form treatment. The phosphorylated oligonucleotide is recovered by ethanol precipitation using ethanol precipitation (manufactured by Nippon Gene).
- the recovered phosphorylated oligonucleotides were divided into 6 groups of 3 to 4 I to VI (see FIG. L. (A)) and annealed. Oligonucleotides of each group are ligated by T4 DNA ligase to synthesize six fragments I to VI.
- the reaction solution is treated with an equal volume of phenol-chloroform and black-mouthed form, and the DNA is recovered by ethanol precipitation.
- Fragments II to VI are synthesized and recovered by the same ligation reaction.
- the fragments I to VI thus synthesized are ligated as three fragments a (I + II), b (III + IV) and c (V + VI) (see FIG. 1. (B)). .
- Plasmid is prepared from the obtained white colonies, a part thereof is digested with HIndIII and BamHI, the insert is confirmed, and the colonies containing the desired plasmid DNA (fGH gene) are screened. Cultivate the screened colonies in 100 ml of LB medium (50 ⁇ g / ml ampicillin), and prepare a large amount of plasmid DNA by the SDS-ALP method.
- Plasmid DM 10 ⁇ g (1 1) Add 10 ⁇ buffer 2 n Hindlll 12 units (1 ⁇ 1), BamHI 12 units (1 ⁇ 1) and sterile water to 20 zl and put in an eppendorf tube at 37 ° C. Incubate for 2 hours. After the reaction, the DNA is treated with phenol-chloroform and black form, and the DNA is collected by ethanol precipitation and dissolved in 10 ⁇ 1 sterile water. After that, separation is performed by 1% agarose gel electrophoresis, and the target DNA fragment is electrically eluted from the cut gel. Concentrate the eluate with butanol, treat it with phenol-form and lip-form, and recover the DNA by ethanol precipitation.
- Escherichia coli (Takeshima, Y., Sugiura, M., and Hagiwara, H., 1994, A novel expression vector for harboring plasmids (pARupl8, pARutl3) containing the RuBisCO promoter and terminator regions of Anakisitis niziulans, respectively.
- the Cyanobacterium, Synechococcus PC C6301, DNA Research 1, 181-189) is cultured in 100 ml of a circle growth medium, and a large amount of plasmid DNA is prepared by the SDS-alkali method.
- pARupl8 digests with EcoRI and Hindlll
- pARutl8 digests with EcoRI and BamHI.
- fGH gene 51 (5 ⁇ g) was added to 500 mM Tris-HCl (pH 8.0) 10 ⁇ l, lOOmM D TT 11, EcoRI methylase 30 nit (0.5 ⁇ 1), 3.2 mM S-adenosylmethionine 2 ⁇ ⁇ pendorf tube with ⁇ 1 and sterile water added to 31.5 ⁇ 1 After incubating the mixture at 37 ° C for 1 hour and treating it with phenol-form and lip-form, the DNA is recovered by ethanol precipitation. Precipitate is dissolved in lOOmM Tris-HCl (pH7.6), 5mM MgCl 2 of 5 ⁇ 1.
- the fGH gene (Methylated EcoRI site) l ⁇ g (2/1) prepared in large quantities according to (9) above, and the Anakistases' Nijuyrans RuBisCO promoter and terminator regions prepared in (8) above, respectively.
- Put each g (2 ⁇ 1) in an Eppendorf tube add 24 ⁇ 1 of Takara Ligation Kit A, and mix well.
- To this mixture add 6 ⁇ 1 of TAKARA Ligation Kit B, mix, and react at 16 ° C for 90 minutes. After the reaction, the DNA is treated with phenol-chloroform and black form, and the DNA is recovered by ethanol precipitation. Add 17 l of sterile water, 2 il of lOxH buffer and EcoRI, and incubate at 37 ° C for 1 hour.
- BG-11 medium sodium lmM sodium thiosulfate, 5 ⁇ g / ml ampicillin, 1.5% agar. Incubate these plates under light irradiation (light source: white fluorescent lamp: 1000-2000 lux) for 4-10 days.
- the colonies thus obtained are transferred to 2 ml of BG-11 liquid medium (10 g / ml ampicillin) and cultured under light irradiation (light source: white fluorescent lamp; 1000-2000 lux) for 10 days.
- light source white fluorescent lamp; 1000-2000 lux
- transfer this culture solution to 100 ml of BG-11 liquid medium (50 // g / ml ampicillin), and incubate for 10 days under light irradiation (light source: white fluorescent lamp; 1000-2000 lux).
- Collect cells by centrifugation at 10,000 rpm, 4 ° C for 10 minutes, resuspend in lOmM PBS and wash by centrifugation again. After washing, store cells at -20 ° C until use.
- Anarchist nidulans transformants and non-transformants cultured in 100 ml BG-11 medium are collected by centrifugation, and 90 mg of each is suspended in 1 ml of isogen (manufactured by Futaba Gene) and incubated at room temperature for 10 minutes. You. To this, add 0.2 ml of clonal form, shake vigorously for 15 seconds, and incubate for 5 minutes at room temperature. Then, centrifuge at 15,000 rpm at 4 ° C for 15 minutes, transfer the aqueous layer to a new tube, and add 0.5 ml of isopropanol there. Incubate for 10 minutes at room temperature.
- RNA fraction was centrifuged at 15,000 rpm at 4 ° C for 15 minutes, the supernatant was discarded, washed with 70% ethanol, lightly dried, dissolved in RNase-free water, and used as a total RNA fraction.
- RT-PCR is performed using the RNA fraction and the Definitive RT-PCR KIT (Biotech International). As a result of agarose gel electrophoresis of the PCR product, a band was confirmed at the expected position (about 600 bp). This shows that the transfected gene is correctly expressed in the transformed Anakistis nidulans.
- Transformants of Anakistis nidulanth and non-transformants cultured in 100 ml of BG-11 medium were collected by centrifugation, and subjected to SDS-polyacrylamide gel electrophoresis according to the method of Laemmi. After electrophoresis, the cells were stained with Coomassie brilliant blue, and a polypeptide band was detected at the expected molecular weight of about 24,000. This band was absent when non-transformants were subjected to SDS-polyacrylamide gel electrophoresis. This band was further transferred to a PVDF membrane, and the amino acid sequence was determined by a 477A / 120A type gas phase sequencer of Applied Biosystems.
- the amino acid sequence of the polypeptide in this band was determined by the above-mentioned invention. It completely matched the amino acid sequence of the fGH polypeptide. Thus, it can be seen that the cyanobacterium anakistasis nijdurans that harbors pBAX18fGH expresses the fGH polypeptide of the present invention.
- the fGH polypeptide of the present invention produced as described above promotes the growth and death of various fishes, especially fry. It has a remarkable effect on the reduction of the rate, and as a general-purpose fish growth hormone agent, it is used as a cultured fish (for example, freshwater fish such as carp, crucian, eel, trout, tilapia; sea bream, hamachi, tuna, flounder, flounder) It can be widely used to promote the growth of aquarium fish such as seawater fish and ornamental fish (for example, goldfish, guppy, angelfish, and early cichlids) and / or reduce the mortality of fry.
- a cultured fish for example, freshwater fish such as carp, crucian, eel, trout, tilapia; sea bream, hamachi, tuna, flounder, flounder
- aquarium fish such as seawater fish and ornamental fish (for example, goldfish, guppy, angelfish, and early cichlids) and
- the fGH polypeptide of the present invention to be administered may be in an isolated or purified form, but it is not always necessary, and may be in a crude state, or the above-described transformed culture Dried bacterial cells containing the fGH polypeptide of the body can also be used.
- the fGH polypeptide of the present invention can be used, for example, by mixing a cyanobacterium containing the same with a normal fish feed and ingesting the fish in a spraying method, and simultaneously with the normal fish feed. It can also be given to fish.
- Test example 1 Carp growth test 1
- the carp in the control group was fed with commercially available carp diets at lOOmg / animal / times, three times a day, and mixed with freeze-dried Anakistis' nidulans PCC6301old non-transgenic lmg / animal once a week. Feeding. Rearing was carried out between 24-26 ° C.
- Table 1 below shows the measurement results of the 25th body weight gain (average of 15 animals) after the first administration.
- Figure 4 shows a plot of the weight gain (%) during the breeding period.
- Test example 2 Carp growth test 2
- a diet containing l ⁇ g / animal of growth hormone (tunaGH: manufactured by Maruha Corporation) in a commercial mug was fed.
- the carp in the control group was fed with commercially available carp diet 0.5 g / animal / time 1 three times, and once a week freeze-dried Anakistis and Nidurans
- fGH polypeptide of the present invention Freeze-dried Anakistis' Durans PCC6301old transformant lmg / animal, Guppy mixed with fGH polypeptide (lg / animal / day) of lOOmg / 10 animals / day.
- the diet containing fGH polypeptide is prepared by adding 0.1 g of Anakistis nidulans PCC6301old transformant lyophilized to 0.9 g of Goodbye Fed (Kyorin Co., Ltd.) and water, kneading well, and freeze-drying.
- Test example 7 Guppy survival test 1
- Bait preparation example 3 Cyanobacteria expressing fGH polypeptide (freeze-dried) 0.1 lg and commercially available bait (Suimi, Marquee Co., Ltd.) 7.7 g and gluten (Marcuichi Co., Ltd.) 2.2 g And add water and mix well. This is dried with a freeze dryer. After drying, crush finely in a mortar, dispense into tubes, and store at 20 ° C until use.
- the diet containing fGH polypeptide is an anaxist freeze-dried to 19.7 g of Discus's diet (manufactured by Tetra Berke Co.). It was made by crushing. The prepared bait was dispensed into tubes and stored at 120 ° C until use.
- Diet containing fGH polypeptide is made of Discus diet (Tetra Berke). Add 9.9 g of freeze-dried Anakistis nidulans PCC6301old transformant to 9.9 g and water, mix well, freeze-dry and place in a mortar. It was made by crushing finely. The prepared bait was dispensed into tubes and stored at -20 ° C until use. Arrangement
- Sequence type nucleic acid
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Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP54542598A JP3706634B2 (ja) | 1997-03-24 | 1998-03-23 | 新規な合成ポリペプチド |
EP98909808A EP0915101A4 (en) | 1997-03-24 | 1998-03-23 | NEW SYNTHETIC POLYPEPTIDE |
US09/194,185 US6239100B1 (en) | 1997-03-24 | 1998-03-23 | Synthetic polypeptide having fish growth hormone-like activity, nucleic acid encoding for the polypeptide and method using same |
AU64212/98A AU732058B2 (en) | 1997-03-24 | 1998-03-23 | Novel synthetic polypeptide |
NZ333020A NZ333020A (en) | 1997-03-24 | 1998-03-23 | Fish growth hormone |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP9/87307 | 1997-03-24 | ||
JP8730797 | 1997-03-24 |
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WO1998042748A1 true WO1998042748A1 (fr) | 1998-10-01 |
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PCT/JP1998/001230 WO1998042748A1 (fr) | 1997-03-24 | 1998-03-23 | Nouveau polypeptide synthetique |
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US (1) | US6239100B1 (ja) |
EP (1) | EP0915101A4 (ja) |
JP (1) | JP3706634B2 (ja) |
AU (1) | AU732058B2 (ja) |
NZ (1) | NZ333020A (ja) |
WO (1) | WO1998042748A1 (ja) |
Cited By (2)
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JP2005538721A (ja) * | 2002-09-16 | 2005-12-22 | アドバンスド バイオニュートリション コーポレーション | 受動免疫のための蛋白質およびペプチド発現 |
US8198067B2 (en) | 2001-03-23 | 2012-06-12 | Advanced Bionutrtion Corporation | Delivery of disease control in aquaculture and agriculture using microbes containing bioactive proteins |
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KR20000075076A (ko) * | 1999-05-28 | 2000-12-15 | 최태진 | 형질전환된 미세조류를 이용하여 외래 단백질을 생산하는 방법 |
US20030158103A1 (en) * | 2002-02-19 | 2003-08-21 | Aqua Bounty Farms, Inc. | Prevention of viral and bacterial disease in shrimp |
CU23577A1 (es) | 2005-07-21 | 2010-09-30 | Ct Ingenieria Genetica Biotech | Polipéptidos estimuladores del crecimiento para uso en peces y crustáceos |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH02223596A (ja) * | 1989-02-27 | 1990-09-05 | Taiyo Fishery Co Ltd | 魚類の成長ホルモンポリペプチド |
JPH0568572A (ja) * | 1991-09-11 | 1993-03-23 | Agency Of Ind Science & Technol | サケ成長ホルモンを生産するラン藻シネココツカス |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH04112900A (ja) * | 1990-09-03 | 1992-04-14 | Taiyo Fishery Co Ltd | 魚類の成長ホルモンポリペプチドの精製、再生法 |
-
1998
- 1998-03-23 US US09/194,185 patent/US6239100B1/en not_active Expired - Fee Related
- 1998-03-23 AU AU64212/98A patent/AU732058B2/en not_active Ceased
- 1998-03-23 EP EP98909808A patent/EP0915101A4/en not_active Withdrawn
- 1998-03-23 NZ NZ333020A patent/NZ333020A/en unknown
- 1998-03-23 WO PCT/JP1998/001230 patent/WO1998042748A1/ja not_active Application Discontinuation
- 1998-03-23 JP JP54542598A patent/JP3706634B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02223596A (ja) * | 1989-02-27 | 1990-09-05 | Taiyo Fishery Co Ltd | 魚類の成長ホルモンポリペプチド |
JPH0568572A (ja) * | 1991-09-11 | 1993-03-23 | Agency Of Ind Science & Technol | サケ成長ホルモンを生産するラン藻シネココツカス |
Non-Patent Citations (3)
Title |
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KARIYA Y., ET AL.: "ISOLATION AND CHARACTERIZATION OF GROWTH HORMONE FROM A MARINE FISHTUNA (THUNNUS ALBACARES).", AGRICULTURAL AND BIOLOGICAL CHEMISTRY, AGRICULTURAL CHEMICAL SOCIETY OF JAPAN, JP, vol. 53., no. 06., 1 January 1989 (1989-01-01), JP, pages 1679 - 1687., XP002911479, ISSN: 0002-1369 * |
NOSO T., ET AL.: "ISOLATION AND CHARACTERIZATION OF GROWTH HORMONE FROM A MARINE FISH, BONITO (KATSUWONUS PELAMIS).", INTERNATIONAL JOURNAL OF PROTEIN RESEARCH., MUNKSGAARD, COPENHAGEN., DK, vol. 32., 1 January 1988 (1988-01-01), DK, pages 579 - 589., XP002911478, ISSN: 0020-7551 * |
See also references of EP0915101A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8198067B2 (en) | 2001-03-23 | 2012-06-12 | Advanced Bionutrtion Corporation | Delivery of disease control in aquaculture and agriculture using microbes containing bioactive proteins |
JP2005538721A (ja) * | 2002-09-16 | 2005-12-22 | アドバンスド バイオニュートリション コーポレーション | 受動免疫のための蛋白質およびペプチド発現 |
JP4731907B2 (ja) * | 2002-09-16 | 2011-07-27 | アドバンスド バイオニュートリション コーポレーション | 受動免疫のための蛋白質およびペプチド発現 |
Also Published As
Publication number | Publication date |
---|---|
NZ333020A (en) | 2000-06-23 |
EP0915101A1 (en) | 1999-05-12 |
AU732058B2 (en) | 2001-04-12 |
EP0915101A4 (en) | 2002-09-18 |
JP3706634B2 (ja) | 2005-10-12 |
AU6421298A (en) | 1998-10-20 |
US6239100B1 (en) | 2001-05-29 |
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