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DK3072962T3 - Fremgangsmåde til fremstilling af fytasevariant med forbedret termostabilitet og en fytasevariant og anvendelse deraf - Google Patents

Fremgangsmåde til fremstilling af fytasevariant med forbedret termostabilitet og en fytasevariant og anvendelse deraf Download PDF

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DK3072962T3
DK3072962T3 DK13897309.4T DK13897309T DK3072962T3 DK 3072962 T3 DK3072962 T3 DK 3072962T3 DK 13897309 T DK13897309 T DK 13897309T DK 3072962 T3 DK3072962 T3 DK 3072962T3
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Denmark
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phytase
variants
activity
seq
phytase variants
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DK13897309.4T
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Bin Yao
Huoqing Huang
Huiying Luo
Chao Shao
Yingguo Bai
Yaru Wang
Peilong Yang
Pengjun Shi
Kun Meng
Heng Zhao
Rui Ma
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Feed Res Inst Caas
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    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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    • C12N9/00Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/14Hydrolases (3)
    • C12N9/16Hydrolases (3) acting on ester bonds (3.1)
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/10Organic substances
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    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/14Fungi; Culture media therefor
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    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/20Bacteria; Culture media therefor
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    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/11DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
    • C12N15/52Genes encoding for enzymes or proenzymes
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    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/63Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12YENZYMES
    • C12Y301/00Hydrolases acting on ester bonds (3.1)
    • C12Y301/03Phosphoric monoester hydrolases (3.1.3)

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Claims (10)

1. Fremgangsmåde til fremstilling af fytasevarianter med en forbedret termostabilitet, inklusive trinnene med indføring af seks proliner på site S80, S151, T161, N176, S187 og A380 af fytasen med aminosyresekvensen, der er anført i SEQ ID NO:2, hvor fytasevarian-terne er mindst 70 % homologe med aminosyresekvensen, der er anført i SEQ ID NO:2.
2. Fytasevarianter med en forbedret termostabilitet med følgende kendetegn: med mindst 70 % homologi med aminosyresekvensen, der er anført i SEQ ID NO:2.; og seks proliner er indført på site S80, S151, T161, N176, S187 og A380 af aminosyresekvensen, der er anført i SEQ ID NO:2.
3. Polynukleotid, der koder for fytasevarianterne med en forbedret termostabilitet ifølge krav 2.
4. Nukleotidkonstruktion omfattende polynukleotidet ifølge krav 3 og en regulerende sekvens, der eventuelt er forbundet til et eller flere af polynukleotiderne for at styre ekspressionen i ekspressionsværten.
5. Rekombinant ekspressionsvektor omfattende nukleotidkonstruktionen ifølge krav 4.
6. Rekombinant værtscelle omfattende den rekombinante ekspressionsvektor ifølge krav 5.
7. Rekombinant værtscelle ifølge krav 6, som er kendetegnet ved, at værtscellen er en bakteriecelle eller svampecelle.
8. Fremgangsmåde til fremstilling af fytasevarianter ifølge krav 2 med den forbedrede termostabilitet omfattende trinnene med (a) dyrkning af den rekombinante værtscelle ifølge krav 6 til 7 for at fremstille supernatan-ten indeholdende fytasevarianterne og (b) genfinding af fytasen.
9. Anvendelse af fytasevarianterne med en forbedret termostabilitet ifølge krav 2 som foderadditiv.
10. Anvendelse af den rekombinante værtscelle ifølge krav 6 i fremstilling af foderadditiver.
DK13897309.4T 2013-11-12 2013-11-12 Fremgangsmåde til fremstilling af fytasevariant med forbedret termostabilitet og en fytasevariant og anvendelse deraf DK3072962T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/086943 WO2015070372A1 (zh) 2013-11-12 2013-11-12 一种产生热稳定性改良的植酸酶变体的方法、以及植酸酶变体及其应用

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DK3072962T3 true DK3072962T3 (da) 2019-03-18

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DK13897309.4T DK3072962T3 (da) 2013-11-12 2013-11-12 Fremgangsmåde til fremstilling af fytasevariant med forbedret termostabilitet og en fytasevariant og anvendelse deraf

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US (1) US9765313B2 (da)
EP (1) EP3072962B1 (da)
DK (1) DK3072962T3 (da)
WO (1) WO2015070372A1 (da)

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CN107236717B (zh) * 2016-03-28 2021-03-30 青岛蔚蓝生物集团有限公司 植酸酶突变体
CN108603181B (zh) * 2016-06-30 2022-03-08 福尼亚生物处理股份有限公司 植酸酶及其用途
WO2018130212A2 (zh) * 2017-01-15 2018-07-19 中国农业科学院饲料研究所 胃蛋白抗性改良和催化效率提高的植酸酶YkAPPA突变体
GB2567010A (en) 2017-10-02 2019-04-03 Univ Strathclyde Apparatus for the rehabilitation, assistance and/or augmentation of arm strength in a user
US20210207112A1 (en) 2018-05-30 2021-07-08 Nanjing Bestzyme Bio-Engineering Co., Ltd. Phytase mutant
CN114807093B (zh) * 2022-06-22 2022-09-27 中国农业科学院北京畜牧兽医研究所 一种通过c端添加融合肽段提高木聚糖酶和植酸酶热稳定性的方法

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US7078035B2 (en) * 1997-08-13 2006-07-18 Diversa Corporation Phytases, nucleic acids encoding them and methods for making and using them
CA2391739C (en) * 1999-11-18 2013-04-09 Cornell Research Foundation, Inc. Site-directed mutagenesis of escherichia coli phytase
ATE490309T1 (de) * 2002-08-12 2010-12-15 Danisco Us Inc Mutante e. coli-appa-phytaseenzyme und natürliche varianten davon, solche phytaseenzyme codierende nukleinsäuren, diese enthaltende vektoren und wirtszellen und verfahren zur herstellung und verwendung davon
CN1706941A (zh) * 2004-06-10 2005-12-14 安徽固源生物工程有限责任公司 高比活植酸酶的热稳定性改良及其高效表达
WO2008017066A2 (en) * 2006-08-03 2008-02-07 Cornell Research Foundation, Inc. Phytases with improved thermal stability
ES2548776T3 (es) 2006-09-21 2015-10-20 Basf Enzymes Llc Fitasas, ácidos nucleicos que las codifican y métodos para su producción y uso
DE102006053059A1 (de) * 2006-11-10 2008-05-15 Ab Enzymes Gmbh Polypeptid mit Phytaseaktivität und erhöhter Temperaturstabilität der Enzymaktivität sowie dieses codierende Nukleotidsequenz
WO2009110933A2 (en) 2007-12-03 2009-09-11 Syngenta Participations Ag Engineering enzymatically susceptible phytases
BRPI0823236A2 (pt) * 2008-11-14 2015-06-16 Fujian Fuda Biotech Co Ltd Fitase termotolerante de escherichia coli não-k12 e sua produção.
FR2947563B1 (fr) * 2009-07-01 2015-08-21 Biomethodes Variants ameliores d'une phytase
CN102002487B (zh) * 2010-11-03 2014-04-30 广东溢多利生物科技股份有限公司 一种优化改良的耐高温植酸酶phyth及其基因和应用
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EP3072962A4 (en) 2017-06-14
EP3072962A1 (en) 2016-09-28
US9765313B2 (en) 2017-09-19
EP3072962B1 (en) 2018-12-26
WO2015070372A1 (zh) 2015-05-21
US20170022486A1 (en) 2017-01-26

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