A previously found thylakoid membrane protein of 14 kDa (TMP14) is a novel subunit of plant photosystem I and is designated PSI-P

被引：50

作者：

Khrouchtchova, A

Hansson, M

Paakkarinen, V

Vainonen, JP

Zhang, SP

Jensen, PE

Scheller, HV

Vener, AV

Aro, EM

Haldrup, A

机构：

[1] Royal Vet & Agr Univ, Plant Biochem Lab, Dept Plant Biol, DK-1871 Frederiksberg, Denmark

[2] Linkoping Univ, Fac Hlth Sci, Div Cell Biol, SE-58185 Linkoping, Sweden

[3] Turku Univ, Dept Biol Plant Physiol & Mol Biol, FI-20014 Turku, Finland

来源：

FEBS LETTERS | 2005年 / 579卷 / 21期

基金：

芬兰科学院; 瑞典研究理事会;

关键词：

photosystem I; protein phosphorylation; state transitions; thylakoids; Arabidopsis;

D O I：

10.1016/j.febslet.2005.07.061

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

We show that the thylakoid membrane phosphoprotein TMP14 is a novel subunit of plant photosystem I (PSI). Blue native/SDS-PAGE and sucrose gradient fractionation demonstrated the association of the protein exclusively with PSI. We designate the protein PSI-P. The presence of PSI-P subunit in Arabidopsis mutants lacking other PSI subunits was analyzed and suggested a location in the proximity of PSI-L, -H and -O subunits. The PSI-P protein was not differentially phosphorylated in state 1 and state 2. (c) 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

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页码：4808 / 4812

页数：5

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