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Directed Evolution of Gyceraldehyde-3-phosphate Dehydrogenase for Control-sensitive Glycolysis in E. coli

첫 페이지 보기
  • 발행기관
    한국생물공학회 바로가기
  • 간행물
    한국생물공학회 학술대회 바로가기
  • 통권
    2009 춘계학술대회 및 국제심포지움 (2009.04)바로가기
  • 페이지
    pp.118-118
  • 저자
    Han-Saem CHO, Young Mi KIM, Hyo Eun JUN, Gyoo Yeol JUNG, Jong Moon PARK
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A104704

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원문정보

초록

영어
Glycolysis is the most important metabolic pathway for growth and maintenance of living organisms, and it is designed highly robust by nature. However, relevant modification of glycolytic activity is significant in metabolic engineering for the product accumulation and it is considered as one of main technical challenges for the strain improvement. gapA is a one of the key glycolytic genes and encodes glyceraldehyde-3-phosphate dehydrogenase (GAPDH) which mediates oxidative phosphorylation of glyceraldehyde-3-phosphate into 1,3-diphosphoglycerate and has vital role in glycolysis. Wild-type GAPDH has strong activity and it is not easy to control its expression level by the conventional controllable promoters. Therefore, it is required to modify GAPDH for the sensitive regulation of glycolysis in E. coli. In this study, we developed a gapA mutant for the regulationsensitive glycolysis in E. coli by directed evolution approach using the gapAdeleted mutant obtained by Red recombination system and temperature sensitive promoter system. Directed evolution of GAPDH was conducted by error-prone PCR combined with growth rate based screening system. By several round of evolution processes, several mutants with the different levels of regulation sensitivities could be obtained. From the sequence analysis of the mutants, activity and sequence relationship was also examined.

키워드

GAPDH Directed Evolution Glycolysis

저자

  • Han-Saem CHO [ Department of Chemical Engineering, POSTECH, Pohang, ]
  • Young Mi KIM [ School of Environmental Science and Engineering, POSTECH, Pohang, 790-784. ]
  • Hyo Eun JUN [ Department of Chemical Engineering, POSTECH, Pohang ]
  • Gyoo Yeol JUNG [ Department of Chemical Engineering, School of Environmental Science and Engineering, Interdisciplinary Bioscience and Bioengineering, POSTECH, Pohang, 790-784. ]
  • Jong Moon PARK [ Department of Chemical Engineering, School of Environmental Science and Engineering, Interdisciplinary Bioscience and Bioengineering, POSTECH, Pohang, 790-784. ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
  • 설립연도
    1984
  • 분야
    공학>생물공학
  • 소개
    이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다 1. 생물공학 분야의 발전을 위한 연구 협력 2. 생물공학의 실용화를 촉진시키기 위한 산학 협동 3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최 4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간 5. 생물공학 발전을 위한 정책 건의 6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동

간행물

  • 간행물명
    한국생물공학회 학술대회
  • 간기
    반년간
  • 수록기간
    1985~2013
  • 십진분류
    KDC 476 DDC 576

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