Antibody (predominantly IgG) is one of the most important pharmaceutical proteins, so its production has been considered as very important issue in current biotechnology. Because of post-translational glycosylation, which is closely related to effector functions, mammalian cell systems have been widely used for the production of IgG whereas E. coli has been considered as unsuitable host. However, recent successes in the developments of aglycosylated IgG variants that do not require glycosylation for the effector functions increased the availability of E. coli as an alternative host for IgG production. In this study, we have developed a new E. coli host-vector system for the high-level production of IgG by using: i) modification of untranslated region (UTR) sequences; ii) co-expression of periplasmic foldase (DsbC). Finally, with the engineered host-vector system, fed-batch cultivations were conducted, and thus very high production yield of IgG could be achieved in a very short time cultivation.
키워드
AntibodyImmunoglobulin GEscherichia coliFed-batch cultivationUntranslated region
저자
Yong Jae LEE [ Dept. of Chemical and Biomolecular Engineering, KAIST, Daejeon. ]
Ki Jun JEONG [ Dept. of Chemical and Biomolecular Engineering, KAIST, Daejeon. ]
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