Sol CHOI, Jae Eun OH, Jin Hwan PARK, Kwang Ho LEE, Sang Yup LEE
언어
영어(ENG)
URL
https://www.earticle.net/Article/A119659
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원문정보
초록
영어
Branched chain amino acids, including L-valine, L-leucine, and L-isoleucine, have gained commercial attention due to their important applications in feed additives, pharmaceuticals as well as cosmetics. We focused our research on the microbial production of L-isoleucine, one of essential amino acids, which has been utilized as a constituent of infusions and dietary products. Biosynthetic pathway of L-isoleucine in Escherichia coli consists of five enzymatic reactions from L-threonine as a starting metabolite. Along this pathway, E. coli possesses complex regulatory mechanism by feedback inhibition and transcription regulation. In this study, we attempted to remove metabolic regulations that hamper the production of L-isoleucine, and then to overexpress genes encoding enzymatic reactions and exporters that facilitate production of L-isoleucine. L-isoleucine-producing E. coli strain developed in this study demonstrates that metabolic engineering approaches could contribute to the construction of industrial strains in the field of amino acids. [This work was supported by the Korean Systems Biology Research Project (20090065571) of the Ministry of Education, Science and Technology (MEST) through the National Research Foundation. Further supports by the World Class University Program (R32-2008-000- 10142-0) of the MEST, LG Chem Chair Professorship, IBM SUR program, and Microsoft are appreciated.]
키워드
L-isoleucinemetabolic engineeringEscherichia coli
저자
Sol CHOI [ Department of Chemical & Biomolecular Engineering (BK21 program), KAIST, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Korea. ]
Jae Eun OH [ Department of Chemical & Biomolecular Engineering (BK21 program), KAIST, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Korea. ]
Jin Hwan PARK [ Department of Chemical & Biomolecular Engineering (BK21 program), KAIST, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Korea. ]
Kwang Ho LEE [ Department of Chemical & Biomolecular Engineering (BK21 program), KAIST, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Korea. ]
Sang Yup LEE [ Department of Chemical & Biomolecular Engineering (BK21 program), KAIST, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Korea. ]
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