Identification of the psbH gene product as a 6 kDa phosphoprotein in the cyanobacterium Synechocystis 6803

FEBS Letters

Race, Helen L.¹  Gounaris, Kleoniki¹ 

[1] Department of Biochemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, UK

关键词: Protein phosphorylation;    Cyanobacteria;    Synechocystis 6803;    psbH gene product;    Photoinhibition;    PS II;    photosystem II;    LHCII;    light harvesting chlorophyll alb binding protein;    DCMU;    3-(3;    4-dichlorophenyl)-1;    1-dimethylurea;   

DOI  :  10.1016/0014-5793(93)81443-4

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The product of the psbH gene has been identified in Synechocystis 6803 thylakoid membranes as a 6 kDa phosphoprotein. This protein becomes phosphorylated in vitro despite the fact that in cyanobacteria it is truncated at the N-terminus such that the phosphorylation site identified in the higher plant protein is missing. Phosphorylation occurred both in the light and in the dark but was inhibited by oxidising conditions, DCMU and zinc ions. The cyanobacterial 6 kDa phosphoprotein degrades when the membranes are subjected to high intensity illumination.

【 授权许可】

Unknown