Synthesis, membrane insertion and assembly of the chloroplast‐encoded D1 protein into photosystem II

FEBS Letters

Aro, Eva-Mari¹  Zhang, Lixin¹ 

[1] Department of Biology, University of Turku, FIN-20014 Turku, Finland

关键词: Assembly;    cpSecY;    Chloroplast signal recognition particle;    D1 protein;    Photosystem II;    Protein translocation;    LHC II;    light harvesting complex II protein;    PS;    photosystem;    SRP;    signal recognition particle;    TM;    transmembrane domain;   

DOI  :  10.1016/S0014-5793(02)02218-4

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Rapid light-dependent turnover of the chloroplast-encoded D1 protein maintains photosystem II (PS II) functional over a wide range of light intensities. Following initiation of psbA mRNA translation, the elongating D1 is targeted, possibly by chloroplast signal recognition particle 54 (cpSRP54), to the thylakoid cpSecY translocation channel. Transmembrane domains of nascent D1 start interacting with other PS II core proteins already during the translocation process to ensure an efficient assembly of the multiprotein membrane complex. Here we review the progress recently made concerning the synthesis, targeting, membrane insertion and assembly to PS II of the chloroplast-encoded D1 protein and discuss the possible convergence of targeting and translocation of chloroplast- and nuclear-encoded thylakoid proteins.

【 授权许可】

Unknown