Bishnu Prasad Pandey, Kwon Young choi, Sungghi Ko, Nahum Lee, TaeJin Kim, Byung-Gee Kim
언어
영어(ENG)
URL
https://www.earticle.net/Article/A99160
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원문정보
초록
영어
CYP105D7, cytochrome p450 from Streptomyces avermitilis was cloned using T7 promoter of the bacterial expression vector pET24ma. Expressed CYP105D7 in E.coli BL21, convert daidzein to 7,3’4’-trihydroxyisoflavone in-vivo and in-vitro system using NADH-dependant reducing equivalent ferredoxin reductase (PDR) and ferredoxin (PDX) from pseudomonas putida.The hydroxylated position was confirmed by GC-MS analysis. The total turnover number of the enzyme was 0.69μmol 7,3’4’-trihydroxyisoflavone produced per μmol p450 per min.To overproduce the 3’ODI using this novel enzyme ,self host Streptomyces avermitilis were used. Recombinant Streptomyces avermitilis strain was found to have 3.6 times higher activity than the wild type to produce 7,3’4’-trihydroxyisoflavone. The cytochrome p450 CYP105D7 of Streptomyces avermitilis was detected by CO-difference spectra in whole cell suspension. Large scale recombinant Streptomyces avermitilis shows conversion of 381 mg dadizein using 7 –l-jar fermentor yielded 112.5 mg of 7,3’4’-trihydroxyisoflavone.
Bishnu Prasad Pandey [ School of Chemical and Biological Engineering, Institute of Molecular Biology and Genetics, Institute of Bioengineering, Seoul National University, Seoul, South Korea ]
Kwon Young choi [ School of Chemical and Biological Engineering, Institute of Molecular Biology and Genetics, Institute of Bioengineering, Seoul National University, Seoul, South Korea ]
Sungghi Ko [ School of Chemical and Biological Engineering, Institute of Molecular Biology and Genetics, Institute of Bioengineering, Seoul National University, Seoul, South Korea ]
Nahum Lee [ School of Chemical and Biological Engineering, Institute of Molecular Biology and Genetics, Institute of Bioengineering, Seoul National University, Seoul, South Korea ]
TaeJin Kim [ School of Chemical and Biological Engineering, Institute of Molecular Biology and Genetics, Institute of Bioengineering, Seoul National University, Seoul, South Korea ]
Byung-Gee Kim [ School of Chemical and Biological Engineering, Institute of Molecular Biology and Genetics, Institute of Bioengineering, Seoul National University, Seoul, South Korea ]
Corresponding author
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