Byung-Kyun Kim, Ja-Ryong Koo, Kyuboem Han, Jung-Yup Lee, David H, Sherman, Eung-Soo Kim
언어
영어(ENG)
URL
https://www.earticle.net/Article/A99931
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원문정보
초록
영어
The polyene antifungal antibiotics, mostly produced by Gram-positive soil actinomycetes, are a family of type I polyketide macrolide ring compounds with 20-40 carbon backbone contain 3-8 conjugated double bonds. Using polyene-specific genomic screening strategy, we previously isolated three novel polyene-producing actinomycetes strains from soil.1,2 Among three isolated strains, we have cloned and completely sequenced approximately 125.7 kb of nystatin-like CPP (Cryptic Pseudonocardia Polyene) biosynthetic gene cluster consisting of six genes for modular PKS and 17 additional genes from P. autotrophica KCTC9441.3 In addition, a 44.8kb FR008-like polyene biosynthetic gene cluster in Streptomyces sp. MMBL003 were isolated and genetically characterized.4 We also confirmed the production of these polyene compounds via culture media optimization along with antifungal bioassay as well as DAD-HPLC analysis, revealing that CPP is a novel antifungal compound different from nystatin.3 Disruption of a putative CPP PKS gene completely abolished CPP biosynthesis as well as antifungal activity. These results suggest that the polyene-specific genome screening as well as characterization of the cryptic polyene compound may constitute an efficient method for isolation of potentially valuable cryptic polyene biosynthetic genes and compounds from various rare actinomycetes.
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