화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 봄 (04/23 ~ 04/25, 제주ICC)
권호 14권 1호, p.528
발표분야 생물화공
제목 Systems metabolic engineering of Escherichia coli for L-valine and L-threonine production
초록 By combined genome engineering, transcriptome analysis, and genome-scale metabolic flux analysis, we constructed genetically-defined Escherichia coli strains overproducing L-valine (Val) and L-threonine (Thr). The final engineered E. coli Val overproducing strain showed an impressively high yield of 0.378 g Val per g glucose. The Thr overproducing strain showed even higher yield of 0.393 g Thr per g glucose, and finally produced 82.4 g/l Thr by fed-batch culture. The strategy of systems metabolic engineering reported here can be employed for developing genetically-defined organisms for the efficient production of bioproducts.
[This work was supported by the Korean Systems Biology Project of the Ministry of Science and Technology (M10309020000-03B5002-00000). Further supports by the LG Chem Chair Professorship are appreciated].
저자 이상엽1, 박진환1, 이광호2, 김태용1
소속 1KAIST, 2CJ
키워드 systems metabolic engieering; L-valine; L-threonine
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