Quang Anh TUAN LE, Hyun Sook KIM, Yong Hwan KIM, Duk Ki KIM
언어
영어(ENG)
URL
https://www.earticle.net/Article/A119653
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원문정보
초록
영어
Lipase B from Candida antarctica (CalB) showing several excellent characteristics such as high stereo-selectivity and stability in organic solvent has attracted much attention for various enzymatic bioconversion reactions [1]. To apply lipase to commercial process, the thermal stability is one of the prerequisites. In this study, we improved the thermal stability of CalB by increasing the number of disulfide bridges based on B-factor. MODIP program was used to determine the probability of a disulfide bridge formation between two adjacent amino acid residues. As a result, 21 amino acid couples with the highest possibility (grade A) were firstly chosen for further investigation. Among those couples in grade A, we selected four candidates (S50-A273, Q156-L163, A162-K308, N169-F304) based on B-factor of its residues. Four double CalB mutants (S50C-A273C. Q156C-L163C, A162C-K308C and N169C-F304C) were constructed and investigated to determine the thermal stability. Two mutants A162C-K308C and N169C-F304C showed improved thermal stability compared to its wild type. We anticipate that those mutants will be one of the good candidates for further study to improve the thermal stability of CalB.
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