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Biochim Biophys Acta. 2014 Sep;1837(9):1427-34. doi: 10.1016/j.bbabio.2013.12.011. Epub 2014 Jan 2.

Some Photosystem II properties depending on the D1 protein variants in Thermosynechococcus elongatus.

Author information

1
Proteo-science Research Center, Ehime University, Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan; PRESTO, Japan Science and Technology Agency (JST), 4-1-8, Honcho, Kawauchi, Saitama 332-0012, Japan. Electronic address: miwa.sugiura@ehime-u.ac.jp.
2
iBiTec-S, CNRS UMR 8221, CEA Saclay, 91191 Gif-sur-Yvette, France. Electronic address: alain.boussac@cea.fr.

Abstract

Cyanobacteria have multiple psbA genes encoding PsbA, the D1 reaction center protein of the Photosystem II complex which bears together with PsbD, the D2 protein, most of the cofactors involved in electron transfer reactions. The thermophilic cyanobacterium Thermosynechococcus elongatus has three psbA genes differently expressed depending on the environmental conditions. Among the 344 residues constituting each of the 3 possible PsbA variants there are 21 substitutions between PsbA1 and PsbA3, 31 between PsbA1 and PsbA2 and 27 between PsbA2 and PsbA3. In this review, we summarize the changes already identified in the properties of the redox cofactors depending on the D1 variant constituting Photosystem II in T. elongatus. This article is part of a special issue entitled: photosynthesis research for sustainability: keys to produce clean energy.

KEYWORDS:

Cyanobacterium; D1; Photosystem II; PsbA; Thermosynechococcus elongatus

PMID:
24388918
DOI:
10.1016/j.bbabio.2013.12.011
[Indexed for MEDLINE]
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