Soon-Kwang HONG, Uyangaa TEMUUJIN, Won-Jae CHI, Mi-ran KIM, Jin-Woo KIM
언어
영어(ENG)
URL
https://www.earticle.net/Article/A115112
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원문정보
초록
영어
Victivallis vadense ATCC BAA-548 is an anaerobic, cellobiose-degrading bacterium isolated from a human fecal sample by combining enrichments in liquid and soft-agar basal media. From the whole genomic sequence of V. vadense, one candidate for agarase gene was identified. The gene product was composed of 1427-amino acids and its molecular weight was calculated as 159,733 Da from the deduced amino acid sequence. Because it has been annotated as a putative alpha-agarase, expression and characterization of the gene product was performed. First, anaerobic cultivation of V. vadense was performed and chromosomal DNA was isolated from the cultivated cells. And then, the gene encoding the putative alpha-agarase was cloned based on PCR. The cloned gene was expressed in Streptomyces lividans host, but no agarase activity was detected even though strong ermE promoter was used. Thus, we investigated production of agarase by using the overexpression vector pET28a and the OmpA signal peptide in E.coli. Therefore, comparison of expression systems and characterization of the expressed protein with those of original signal sequence will be presented. [This work was supported by the 21C frontier Microbial Genomics and Application Center Program]
키워드
alpha-agaraseVictivallis vadensesecretion signal peptide
저자
Soon-Kwang HONG [ Department of Biological Science, Myongji University ]
Uyangaa TEMUUJIN [ Department of Biological Science, Myongji University ]
Won-Jae CHI [ Department of Biological Science, Myongji University ]
Mi-ran KIM [ Department of Biological Science, Myongji University ]
Jin-Woo KIM [ Department of Biological Science, Myongji 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