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Metabolic Engineering of Glucose-6-phosphate Dehydrogenase and 6-Phosphogluconate Dehydrogenase genes in S. lividans

첫 페이지 보기
  • 발행기관
    한국생물공학회 바로가기
  • 간행물
    한국생물공학회 학술대회 바로가기
  • 통권
    2009 추계학술대회 및 국제심포지움 (2009.11)바로가기
  • 페이지
    pp.186-186
  • 저자
    Soon-Kwang HONG, Xue-Mei JIN, Yong-Hoon CHEONG, Eun-A OH, Bolormaa ENKHBAATAR
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A115113

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원문정보

초록

영어
The pentose phosphate pathway (PPP) and glycolysis comprise the most central metabolic
pathways in the primary metabolism of Streptomyces. Most of the antibiotic biosynthetic
pathways include reductive steps where NADPH is required as a reducing factor. NADPH is
produced in PPP, by glucose-6-phosphate dehydrogenase (Zwf1 and Zwf2) and 6-
phosphogluconate dehydrogenase (Zwf3). According to the report, the two genes (zwf1 and
zwf2) were translationally coupled with the downstream opc1 and opc2 genes, respectively.
The opc1 and opc2 genes were reported to be essential for Zwf activity in Cyanobacteria and
corynebacterium. On the basis of the rationale, we postulated that the increase of NADPH
concentration in the microbial cells would result in overproduction of secondary metabolites.
Based on the genomic sequence of S. coelicolor, firstly, four different combinations of zwf and
opc genes, were introduced into the pUWL201PW vector, and the resulting vectors were
transformed into Streptomyces lividans TK24. Secondly, the carbon metabolism of S. lividans
transformanrs was investigated. Especially, biomass, antibiotics, NADPH, and sedoheptulose-
7-phosphate production in the engineered cells were nalyzed. Taken as a whole, our results
indicate engineering of PPP by the glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase genes is a useful way to elevate intracellular concentration of NADPH and sedoheptulose-7-phosphate as well as biomass, which may be applied to improve productivity of secondary metabolites biosynthesized from the intermediates of PPP. [supported by grant no. 2009-0073015 from the Basic Research Program of the National Research Foundation]

키워드

NADPH glucose-6-phosphate dehydrogenase 6-phosphogluconate dehydrogenase sedoheptulose-7-phosphate

저자

  • Soon-Kwang HONG [ Department of Biological Science, Myongji University ]
  • Xue-Mei JIN [ Department of Biological Science, Myongji University ]
  • Yong-Hoon CHEONG [ Department of Biological Science, Myongji University ]
  • Eun-A OH [ Department of Biological Science, Myongji University ]
  • Bolormaa ENKHBAATAR [ Department of Biological Science, Myongji University ]

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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