Kwang Suk CHANG, Hancheol JEON, Seunghye PARK, EonSeon JIN
언어
영어(ENG)
URL
https://www.earticle.net/Article/A174730
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원문정보
초록
영어
After conversion of CO2 to bicarbonate by carbonic anhydrase (CA) reversibly, Phosphoenolpyruvate carboxylase (PEPCase, EC4.1.1.31) catalyzes the irreversible reaction of PEP and HCO3- into four-carbon organic acid oxaoacetate (OAA) using Mg2+ as a cofactor. PEPCase also plays a significant role in anaplerosis by providing OAA and/or malate, replenishing the tricarboxylic acid cycle (TCA) intermediates in all photosynthetic organisms and also in non-photosynthetic bacteria and protozoa. So, PEPCase play a key role in photosynthesis of C4 type autotrophic plant and algae and relevant processes in heterotrophic organisms except animals or fungi. To develop the high production of marine PEPCase and the CO2 fixation system, we have tried to search and isolate PEPCase genes from maine microalgae. Therefore we have already isolated two types of PEPCase cDNA clones from marine green algae Dunaliella salina (DsPEPC1 and DsPEPC2) and marine diatom Phaeodactylum tricornutum (PtPEPC1 and PtPEPC2). In order to confirm and develope that DsPEPC1/2 and PtPEPC1/2 have the higher enzyme activity, we have tried out the heterologous expression in E. coli BL21 or Origami (DE3). As a results, PEPCase recombinant proteins were successfully expressed and purified as soluble form by using His-taq affinity column.
키워드
PEPCasemarine algaeprotein expression
저자
Kwang Suk CHANG [ Dept. of Life Science and Research Institute for Natural Sciences, Hanyang University, Seoul, 133-791. ]
Hancheol JEON [ Dept. of Life Science, Hanyang University, Seoul, 133-791. ]
Seunghye PARK [ Dept. of Life Science, Hanyang University, Seoul, 133-791. ]
EonSeon JIN [ Dept. of Life Science, Hanyang University, Seoul, 133-791. ]
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