Exploring the effects of carbon sources on the metabolic capacity for shikimic acid production in Escherichia coli using in silico metabolic prediction
Park, Myung Soo, Jung Oh Ahn, Hong Weon Lee, Dong Yup Lee, Hyung Joo Kim, Joon Ki Jung
언어
영어(ENG)
URL
https://www.earticle.net/Article/A100309
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원문정보
초록
영어
Shikimic acid (SA) is a hydroaromatic intermediate in the commom pathway of aromatic amino acid biosynthesis. Due to its highly functionalized chiral characteristics, it has been recognized as an essential starting material for synthesizing neuramidase in hibitors (marketed as Tamiflu) which are effective in the treatment of influenza. The current state-of-the art for isolation of shikimic acid from the fruit of Illicium plants is cumbersome and costly, which eventually motivates the microbial production shikimic acid from renewable resource. (1) In this study, effects of various industrially important carbon sources (glucose, sucrose, xylose, gluconate and glycerol) on the SA biosynthesis in Escherichia coli were investigated to gain new insight into the metabolic capability for producing SA (2). Constraints-based flux analysis using the genome-scale in silico model of E. coli allows us to quantify the threoretical maximum SA yield. The corresponding flux distributions fueled by different carbon sources under investigation were compared with respect to theoretical yields and energy utilization. For the experimental observation, E coli in which the accumulation of SA can be facilitated by blocking the aromatic amino acid pathway were developed, and production of SA in this strain under various carbon sources was investigated through 5L fermentation.
키워드
Shikimic acidconstraints-based flux analysisgenome-scale in silico modelEscherichia. coliFermentation
저자
Park, Myung Soo [ Division of Biotechnology R&BD, Korea Research Institute of Bioscience and Biotechnology, Department of Microbial Engineering, Konkuk University ]
Jung Oh Ahn [ Division of Biotechnology R&BD, Korea Research Institute of Bioscience and Biotechnology ]
Hong Weon Lee [ Division of Biotechnology R&BD, Korea Research Institute of Bioscience and Biotechnology ]
Dong Yup Lee [ epartment of Chemical and Biomolecular Engineering, National University of Singapore, Bioprocessing Technology Institute, Agency for Science, Technology and Research (A *STAR), ]
Hyung Joo Kim [ Department of Microbial Engineering, Konkuk University ]
Joon Ki Jung [ Division of Biotechnology R&BD, Korea Research Institute of Bioscience and Biotechnology ]
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