Young-Kyoung Park, Eun-Jeong Kim, Yong-Cheol Park, Hyung-Kwon Lim, Jin-Ho Seo
언어
영어(ENG)
URL
https://www.earticle.net/Article/A100307
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원문정보
초록
영어
Hepatitis B virus causing the chronic diseases of the liver is surrounded by envelop proteins. Their major component is the small hepatitis B surface antigen (sHBsAg).1) A plasmid containing the sHBsAg gene under the Gal promoter and MFα signal sequence was constructed for the chromosomal integration and expression of the sHBsAg gene in recombinant S. cerevisiae. Batch fermentation of S. cerevisiae 2805/Mδα _sHBsAg with 20 g/L glucose and 30 g/L galactose resulted in 2.21 mg/L of sHBsAg concentration. Appearance of three different sizes of sHBsAg with 25, 35 and 40 kDa indicated that sHBsAg was as three types of authentic, MFα containing and N-glycosylated MFα containing sHBsAg. To improve the expression level of sHBsAg, the PDI1 gene was episomally co-expressed. Batch fermentation of S. cerevisiae 2805/Mδα_sHBsAg_Pdi1 resulted in 9.75 g/L of dry cell mass and 13.3 mg/L of sHBsAg concentration. Modulation of galactose addition yielded the optimal initial galactose concentration of 15 g/L. Finally, 14.2 mg/L of sHBsAg concentration was obtained in batch fermentation using 20 g/L glucose and 15 g/L galactose, which was 6.5 times higher than that for S. cerevisiae 2805/Mδα_sHBsAg.
저자
Young-Kyoung Park [ Department of Agricultural Biotechnology ]
Eun-Jeong Kim [ Department of Agricultural Biotechnology ]
Yong-Cheol Park [ Center for Agricultural Biomaterials, Seoul National University ]
Hyung-Kwon Lim [ Mogam Biotechnology Research Institute ]
Jin-Ho Seo [ DepartmentofAgriculturalBiotechnology and Center for Agricultural Biomaterials, Seoul National 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