Ju Ri. SHIN, Su A. JANG, Ki Jung. LIM, Jung Min. KIM, Sun Chang. KIM
언어
영어(ENG)
URL
https://www.earticle.net/Article/A100221
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원문정보
초록
영어
Direct expression of an antimicrobial peptide (AMP) in Escherichia coli causes several problems such as the toxicity of AMP to the host cell and its susceptibility to proteolytic degradation. To overcome these problems and produce a large quantity of a potent AMP histonin (RAGLQFPVGKLLKKLLKRLKR) in E. coli, an efficient expression system was developed, in which the toxicity of histonin was neutralized by a fusion partner F4 (a truncated fragment of PurF protein) and the productivity was increased by a multimeric expression of a histonin gene. The expression level of the fusion peptide reached a maximum with a 12-mer of a histonin gene. Because of the RLKR residues present at the C-terminus of histonin, Furin cleavage of the multimeric histonin expressed produces an intact, natural histonin. The AMP activity of the histonin produced in E. coli was identical to that of a synthetic histonin. With our expression system, 167 mg of histonin was obtained from 1 L of E. coli culture. These results may lead to a cost-effective solution for the mass production of AMPs that are toxic to a host.
저자
Ju Ri. SHIN [ Department of Biological Sciences, KAIST, DAEJEON, South Korea ]
Su A. JANG [ Department of Biological Sciences, KAIST, DAEJEON, South Korea ]
Ki Jung. LIM [ Department of Biological Sciences, KAIST, DAEJEON, South Korea ]
Jung Min. KIM [ Department of Biological Sciences, KAIST, DAEJEON, South Korea ]
Sun Chang. KIM [ Department of Biological Sciences, KAIST, DAEJEON, South Korea ]
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