An oxygen‐evolving complex with a simple subunit structure ‐ ‘a water‐plastoquinone oxidoreductase” ‐ from the thermophilic cyanobacterium Synechococcus sp.

FEBS Letters

Ohno, Takashi¹  Satoh, Kazuhiko¹  Katoh, Sakae¹ 

[1] Department of Pure and Applied Sciences, College of Arts and Sciences. University of Tokyo, Komaba, Meguro-ku, Tokyo 153, Japan

关键词: Oxygen evolution;    Photosystem II;    Reaction center complex;    Submit structure;    Divalent metal cation;    Thermophilic cyanobacterium;    PS;    photosystem;    Mes;    2-(N-morpho-lion)ethanesulfonic acid;    chl;    chloroplyll;    DCMU;    3-(3;    4-dichlorophenyl)-1;    1-dimethylurea;   

DOI  :  10.1016/0014-5793(85)81096-6

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

An oxygen-evolving complex has been highly purified from the thermophilic cyanobacterium Synechococcus sp. The complex, which reproducibly showed 5 major polypeptide bands of 47, 40, 35, 30 and 9 kDa on SDS-polyacrylamide gel electrophoresis and contained 3.2 Mn per Q_A, had an oxygen-evolving activity of 300–400 chl per h in the presence of 5 mM MnCl₂; or CaCl₂. The complex most likely represents a minimum functional unit of the photosynthetic oxygen evolution.

【 授权许可】

Unknown