KR101551533B1 - 2,3-부탄디올의 생성능이 증강된 재조합 미생물 및 이를 이용한 2,3-부탄디올의 생산 방법 - Google Patents
2,3-부탄디올의 생성능이 증강된 재조합 미생물 및 이를 이용한 2,3-부탄디올의 생산 방법 Download PDFInfo
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- KR101551533B1 KR101551533B1 KR1020130115682A KR20130115682A KR101551533B1 KR 101551533 B1 KR101551533 B1 KR 101551533B1 KR 1020130115682 A KR1020130115682 A KR 1020130115682A KR 20130115682 A KR20130115682 A KR 20130115682A KR 101551533 B1 KR101551533 B1 KR 101551533B1
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Abstract
Description
도 2는 클렙시엘라 옥시토카 내에 존재하는 2,3-부탄디올 합성 관련 유전자 오페론을 도식한 것이다.
도 3은 클렙시엘라 옥시토카 내에 존재하는 2,3-부탄디올 합성 관련 유전자의 세포 내 기능을 확인하기 위해 대장균 (E. coli JM109) 발현 재조합 벡터 제작 과정을 도식화한 것이다.
도 4는 재조합 대장균의 회분식 발효 시 2,3-부탄디올 생산능을 나타내며, 도 5는 아세토인 생산능을 나타낸다(●: pBRbudRAB/E. coli JM109, ▲: pBRbudRABC/E. coli JM109, ■: pBRbudRABD/E. coli JM109).
도 6은 M9 최소 배지에서 2,3-부탄디올을 유일 탄소원으로 하여 재조합 클렙시엘라 균주를 성장시킨 결과이며, 도 7는 잔류 2,3-부탄디올의 농도이다(●: KO △ldhA, ▲: KO △dhA △budC, ■: KO △ldhA △dar. ◆: KO △ldhA △budC△dar.)
도 8 내지 11은 재조합 클렙시엘라 균주들을 회분식 발효하여 2,3-부탄디올을 생산한 결과를 나타낸다(도 8: KO △ldhA, 도 9: KO △ldhA △budC, 도 10: KO △ldhA △dar, 도 11: KO △ldhA △budC △dar).
Claims (13)
- 2,3-부탄디올 및 락테이트 생합성 경로를 갖는 미생물에 있어서,
서열번호 11의 아미노산 서열을 갖는 단백질의 활성이 억제되는 것을 특징으로 하는, 2,3-부탄디올의 생성능이 증가한 재조합 미생물.
- 제 1항에 있어서,
피루베이트를 락테이트로 전환하는 경로가 추가로 억제되는 것을 특징으로 하는 재조합 미생물.
- 제 1항에 있어서,
락테이트 디하이드로게나제의 활성이 추가로 억제되는 것을 특징으로 하는 재조합 미생물.
- 제 1항에 있어서,
락테이트 디하이드로게나제를 코드하는 유전자인 ldhA가 결실 또는 억제되는 것을 특징으로 하는 재조합 미생물.
- 제 1항에 있어서,
상기 미생물은 클렙시엘라인 것을 특징으로 하는 재조합 미생물.
- 2,3-부탄디올 및 락테이트 생합성 경로를 갖는 미생물에 있어서,
서열번호 12의 염기서열을 갖는 유전자가 코드하는 단백질의 활성이 억제되는 것을 특징으로 하는, 2,3-부탄디올의 생성능이 증가한 재조합 미생물.
- 제 6항에 있어서,
피루베이트를 락테이트로 전환하는 경로가 추가로 억제되는 것을 특징으로 하는 재조합 미생물.
- 제 6항에 있어서,
락테이트 디하이드로게나제의 활성이 추가로 억제되는 것을 특징으로 하는 재조합 미생물.
- 제 6항에 있어서,
락테이트 디하이드로게나제를 코드하는 유전자인 ldhA가 결실 또는 억제되는 것을 특징으로 하는 재조합 미생물.
- 제 6항에 있어서,
상기 미생물은 클렙시엘라인 것을 특징으로 하는 재조합 미생물.
- 삭제
- 삭제
- 제 1항 내지 제 10항 중 어느 한 항의 재조합 미생물을 배양하는 단계;및
배양액으로부터 2,3-부탄디올을 회수하는 단계를 포함하는 2,3-부탄디올의 생산 방법.
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KR1020130115682A KR101551533B1 (ko) | 2013-09-27 | 2013-09-27 | 2,3-부탄디올의 생성능이 증강된 재조합 미생물 및 이를 이용한 2,3-부탄디올의 생산 방법 |
US15/025,521 US10006008B2 (en) | 2013-09-27 | 2014-09-26 | Recombinant microorganism having enhanced ability to produce 2,3-butanediol and method for producing 2,3-butanediol using same |
PCT/KR2014/009067 WO2015046978A1 (ko) | 2013-09-27 | 2014-09-26 | 2,3-부탄디올의 생성능이 증강된 재조합 미생물 및 이를 이용한 2,3-부탄디올의 생산 방법 |
CN201480053587.0A CN105593368B (zh) | 2013-09-27 | 2014-09-26 | 2,3-丁二醇的生成能力得到增加的重组微生物及利用其的2,3-丁二醇的生产方法 |
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CN105593368A (zh) | 2016-05-18 |
WO2015046978A1 (ko) | 2015-04-02 |
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