Saxagliptin is a pharmaceutical chemical used for treatment of type 2 diabetes. We prepared 2-(3-hydroxy-1-adamantyl)-(2S)-amino ethanoic acid which is an intermediate of saxagliptin, by coupling two enzyme reactions. Both Branched-chain amino transferase (BcAT) from Enterobactor sp. and aspartate amino transferase(AAT) from E.coli were transformed into the E.coli BL21(DE3). 2-(3-hydroxy-1-adamantyl)-2-oxoethanoic acid was applied as the substrate for the transaminase reaction. The activity of the enzyme was analyzed with HPLC after 2,3,4,6-tetra-O-acetyl-D-glucopyranosyl isothiocyanate(GITC) derivertization. This enzyme reaction performed high (s)-form enantioselectivity which was 99.9% ee. Though BcAT alone showed activity toward the substrate, coupling AAT shifted the equilibrium constant and made 1.7 fold higher product yield.
키워드
transaminaseenzyme couplingsaxagliptin
저자
Eun young HONG [ School of Chemical and biological Engineering, Seoul National University ]
Minho CHA [ School of Chemical and biological Engineering, Seoul National University ]
Byunggi KIM [ School of Chemical and biological Engineering, Seoul National University ]
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