Hee Sub Lee, Jong-il Choi, Young Lyeol Yang, Young-Jin Chung, Jae-Hun Kim, Ju-Woon Lee, Myung-Woo Byun
언어
영어(ENG)
URL
https://www.earticle.net/Article/A100223
※ 원문제공기관과의 협약기간이 종료되어 열람이 제한될 수 있습니다.
원문정보
초록
영어
New strain development strategy using kinetic models and metabolic control analysis was investigated. In this study, previously reported mathematical models describing the enzyme kinetics of intracellular threonine synthesis were modified for mutant threonine producer Escherichia coli TF5015. Using the modified models, metabolic control analysis was carried out to identify the rate-limiting step by evaluating the flux control coefficient on the overall threonine synthesis flux exerted by individual enzymatic reactions. The result suggested the production of threonine could be enhanced most efficiently by increasing aspartate semialdehyde dehydrogenase (asd) activity of this strain. Amplification of asd gene in recombinant strain TF5015(pCL-ParoF-asd) increased the threonine production up to 23%, which is much higher than 14% obtained by amplifying aspartate kinse (thrA), other gene in threonine biosynthesis pathway.
저자
Hee Sub Lee [ Advanced radiation Technology Institute, Korea Atomic Energy Research Institute ]
Jong-il Choi [ Advanced radiation Technology Institute, Korea Atomic Energy Research Institute ]
Young Lyeol Yang [ CJ Corp, R&D Center for BioProduct ]
Young-Jin Chung [ Department of Food and Nutrition, Chungnam National University ]
Jae-Hun Kim [ Advanced radiation Technology Institute, Korea Atomic Energy Research Institute ]
Ju-Woon Lee [ Ju-Woon Lee, | Advanced radiation Technology Institute, Korea Atomic Energy Research Institute ]
Myung-Woo Byun [ Advanced radiation Technology Institute, Korea Atomic Energy Research Institute ]
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