Mingshou LU, Chang-hun Park, Borim Kim, Jinwon Lee
언어
영어(ENG)
URL
https://www.earticle.net/Article/A129246
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원문정보
초록
영어
The fermentation of glucose by several bacteria such as Klebsiella oxytoca, Klebsiellar pneumonia, Bacillus subtilis, Aeromonas hydrophilia and several species of Serratia yields 2,3-Butanediol as one of the products while secondary products formed acetoin, ethanol, lactic acid, and acetic acid. 2,3-Butanediol is a versatile bio-product for synthesis rubber polymers and solvents with a carbon chain length of four and two reactive sites. However the efforts of changing metabolic fluxes radically is known to be more challenging to determine which pathways should be modified in the classic genetic engineering. In this work, we constructed a model based on pyruvate distribution yielding 2,3-Butanediol and other byproducts. Our aim is to find a best mutant yielding 2,3-butanediol with the help of in silico experiments, thus the direct in silico experiments simulate the time scale concentration profiles based on the enzyme kinetics in combination with metabolic control analysis and metabolic flux analysis,. Based on Escherichia coli and Klebsiella bacteria enzyme database, several virtual mutants has been developed, simulated as well as combined with experiments confirmation. The results showed that the knockout of lactate dehydrogenase could decrease the production of lactate while increase the 2,3-Butanediol yield; NAD and NADH balance had fierce control on the reaction network; in addition other byproducts’ deletions would as well enlarge the productivity of 2,3-Butanediol.
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