Joon Ho PARK, Joo-Hyun SEO, Minho CHA, Hyun Jong KANG, Byung-Gee KIM
언어
영어(ENG)
URL
https://www.earticle.net/Article/A129241
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원문정보
초록
영어
About 80% of chiral amines used as pharmaceutical intermediates are in (R) form. Despite the needs of (R) form intermediates, only one (R)-specific ω-transaminase (R-ωAT) is known. In this study, we used bioinformatical approach to search putative R-ωAT. Because R-ωAT is believed to belong to aminotransferase group III which contains D-alanine aminotransferase, branched-chain aminotransferase and 4-aminodeoxychorismate lyase (ADCL), we generated profiles of DAATs, BCATs and ADCLs and scored bacterial sequences in RefSeq database using three profiles. We plotted sequences in 3-D space whose coordinates are composed of profile analysis score against DAATs, BCATs and ADCLs. Slightly homologous to DAAT, BCAT and ADCL, but not authentic DAAT, BCAT nor ADCL, were selected for activity investigation. Reaction results using enzyme purified from recombinant E. coli showed that transaminases from Hypomonas neptunium and Saccharopolyspora erythrea showed activity to (R)-a-MBA. These two enzymes did not showed activity to (S)-a-MBA. Therefore, R-ωAT were successfully screened using evolutionary relationship by comparison of profile analysis scores against neighborhood subfamily profiles.
키워드
transaminasestereochemistrybioinformatics
저자
Joon Ho PARK [ School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742. ]
Joo-Hyun SEO [ School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742. ]
Minho CHA [ School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742. ]
Hyun Jong KANG [ School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742. ]
Byung-Gee KIM [ School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742. ]
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