JP2008523832A - コリネフォルム細菌由来のproB遺伝子の突然変異体 - Google Patents
コリネフォルム細菌由来のproB遺伝子の突然変異体 Download PDFInfo
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- JP2008523832A JP2008523832A JP2007547267A JP2007547267A JP2008523832A JP 2008523832 A JP2008523832 A JP 2008523832A JP 2007547267 A JP2007547267 A JP 2007547267A JP 2007547267 A JP2007547267 A JP 2007547267A JP 2008523832 A JP2008523832 A JP 2008523832A
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- C07K14/34—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria from Corynebacterium (G)
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- 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
- C12N9/10—Transferases (2.)
- C12N9/12—Transferases (2.) transferring phosphorus containing groups, e.g. kinases (2.7)
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Abstract
Description
a)配列番号1、好ましくは配列番号3に対して少なくとも70%の同一性を有するか、あるいは、
b)本発明によるγ−グルタミルキナーゼをコードし、この場合、これは、369±40アミノ酸の長さであるか、あるいは、
c)本発明によるγ−グルタミルキナーゼをコードし、この場合、これは、配列番号2、好ましくは配列番号4のアミノ酸を、少なくともその位置または同等の位置145〜154位で有するか、あるいは、
d)本発明によるγ−グルタミルキナーゼをコードし、この場合、これは、配列番号2、好ましくは配列番号4のアミノ酸配列を、その位置または同等の位置145〜154位で有し、かつ、配列番号1または配列番号3に対して相補的なヌクレオチド配列に対して、ストリンジェントな試験条件下でハイブリダイズするか、あるいは、
f)本発明による酵素、γ−グルタミルキナーゼをコードし、かつその塩基配列が、配列番号3に示すように446位でアデニンを含む、複製可能なヌクレオチド配列である。
●グルタメートデヒドロゲネース(EC 1.4.1.4 )をコードするgdh遺伝子
●γ−グルタミル−ホスフェートレダクターゼ(EC 1.2.1.41 )をコードするproA遺伝子
●プロリン−5−カルボキシレートレダクターゼ(EC 1.5.1.2 )をコードするproC遺伝子および
●オルニチンシクロデアミナーゼ(EC 4.3.1.12 )をコードするocd遺伝子
L−プロリンを製造するために、さらにproB遺伝子の本発明による突然変異体を使用するのに加えて、同時に減衰、特に発現を減少させるために、特に以下の群から選択された内在性遺伝子の1種またはそれ以上を使用することができる。
●トレオニンデアミナーゼ(EC 4.2.1.16 )をコードするilvA遺伝子
●プロリンデヒドロゲナーゼ/プロリン−5−カルボキシレートデヒドロゲナーゼ(EC 1.5.99.8 )をコードするputA遺伝子
●2−ケトグルタレートデヒドロゲナーゼ(EC 1.2.4.2 )をコードするsucA遺伝子、
●ジヒドロリポアミドスクシニルトランスフェラーゼ(EC 2.3.1.61 )をコードするsucB遺伝子および
●アセチルオルニチンアミノトランスフェラーゼ(EC 2.6.1.11 )をコードするargD遺伝子
これに関連して、用語「減衰」は、微生物中で、相当するDNAによりコードされる1種またはそれ以上の酵素またはタンパク質の細胞内活性または濃度の減少または除去を示し、たとえば、これは、弱いプロモーターを使用するか、あるいは、低い活性を有する相当する酵素を硬度する遺伝子または対立遺伝子を使用するか、あるいは、相当する遺伝子または酵素またはタンパク質を不活性化することにより、かつ適切である場合には、これら手段を組合せることによりおこなう。
a)本発明による少なくとも1種のヌクレオチド配列を発現または過剰発現するホスト微生物を発酵し、かつ、
b)L−プロリンを単離または回収し、その際、適切である場合には、発酵ブロスおよび/またはバイオマスからの成分を含む、
ことにより、L−プロリンを連続的に製造することである。
a)本発明による少なくとも1種のヌクレオチド配列を発現または過剰発現するコリネフォルム細菌を発酵し、
b)コリネフォルム細菌の発酵ブロスまたは細胞中で、L−プロリンを濃縮し、
c)発酵ブロスからL−プロリンを単離または回収し、その際、適切である場合には、
d)発酵ブロスおよび/またはバイオマスからの成分(>0〜<100質量%のバイオマス、好ましくは10〜80質量%、より好ましくは20〜60質量%)を含む。
Claims (6)
- アミノ酸149位または同等の位置において、グリシン以外のタンパク質構成アミノ酸を有する、γ−グルタミルキナーゼ。
- Lys、Asn、Arg、Ser、Thr、Ile、Met、Glu、Asp、Ala、Val、Gln、His、Pro、Leu、Tyr、Trp、CysまたはPheから成る群から選択されたアミノ酸が、請求項1に記載されたアミノ酸位置または同等の位置で存在することを特徴とする、請求項1に記載のγ−グルタミルキナーゼ。
- 請求項1または2に記載のγ−グルタミルキナーゼをコードする核酸配列。
- a)配列番号1に対して少なくとも70%の同一性を有するか、あるいは、
b)請求項1または2に記載のγ−グルタミルキナーゼをコードし、この場合、これは369±40アミノ酸の長さであるか、あるいは、
c)請求項1または2に記載のγ−グルタミルキナーゼをコードし、この場合、これは、配列番号2のアミノ酸配列を、少なくともその位置または同等の位置145〜154位で有するか、あるいは、
d)請求項1または2に記載のγ−グルタミルキナーゼをコードし、この場合、これは、配列番号2のアミノ酸配列を、少なくともその位置または同等の位置145〜154位で有し、かつ、配列番号1または配列番号3に対して相補的なヌクレオチド配列に対して、ストリンジェントな試験条件下でハイブリダイズすることを特徴とする、請求項3に記載の核酸配列。 - 請求項3または4に記載のヌクレオチド配列を有する、組み換え運搬体。
- a)請求項3または4に記載のヌクレオチド配列を発現または過剰発現するホスト微生物を発酵させ、かつ、
b)L−プロリンを単離または回収し、この場合、これは、適切である場合には、発酵ブロスおよび/またはバイオマスからの成分を含む、
ことによる、L−プロリンの製造方法。
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DE102004061696A DE102004061696A1 (de) | 2004-12-22 | 2004-12-22 | Mutante des proB-Gens aus coryneformen Bakterien |
PCT/EP2005/013372 WO2006066758A1 (en) | 2004-12-22 | 2005-12-13 | Mutant of the prob gene from coryneform bacteria |
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BRPI0519207B1 (pt) | 2021-03-30 |
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PL2210946T3 (pl) | 2015-08-31 |
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EP1828384B1 (en) | 2011-03-23 |
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US7982020B2 (en) | 2011-07-19 |
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ZA200705143B (en) | 2008-09-25 |
EP1828384A1 (en) | 2007-09-05 |
DK1828384T3 (da) | 2011-06-14 |
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