Jae Hyung Lee, Mi Jung Kim, Yeon-Hee Kim, Jin-Ho Seo, Jin-Woo Lee, Soo-Wan Nam
언어
영어(ENG)
URL
https://www.earticle.net/Article/A100148
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원문정보
초록
영어
Pancreatic or tissue carboxypeptidase B (CPB; EC 3.4.17.2) is a key enzyme involved in insulin conversion and highly specific for excising C-terminal Lys and Arg resiudes from peptides and proteins. Also, CPB is naturally synthesized in form of zymogen with an 11 kDa N-terminal prodomain that covers the catalytic pocket of the enzyme.1) A cDNA containing the human pancreatic pro-CPB was fused to three mutants of exoinulinase secretion signal (m1, m2, and m3) from Kluyveromyces marxianus. We used these plasmids in order to further improve the secretion efficiency of proCPB. The recombinant plasmids, pYInum1-hproCPB, pYInum2-hproCPB, and pYInum3-hproCPB, were transformed into Saccharomyces cerevisiae 2805 strain. Yeast transformants were selected on the synthetic defined media lacking uracil. The recombinant hproCPBs were successfully expressed in S. cerevisiae after induction of galactose, and could be secreted into the supernatant of the culture. The secretion efficiency of proCPBs from each vectors were measured and analyzed. Each the human proCPB protein secreted by three mutants of exoinulinase signal sequence was purified and the enzymatic properties were examined.
저자
Jae Hyung Lee [ Dept. of Biomaterial Control (BK 21 program) ]
Mi Jung Kim [ Dept. of Biotechnology and Bioengineering, Dong-Eui University ]
Yeon-Hee Kim [ Dept. of Biotechnology and Bioengineering, Dong-Eui University ]
Jin-Ho Seo [ Dept. of Agricultural Biotechnology, Seoul National University ]
Jin-Woo Lee [ Division of Biotechnology, College of Natural Resources & Life Science, Dong-A University ]
Soo-Wan Nam [ Dept. of Biomaterial Control (BK 21 program), Dept. of Biotechnology and Bioengineering, Dong-Eui 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