A change in the sensitivity of elongation factor G to oxidation protects photosystem II from photoinhibition in Synechocystis sp. PCC 6803.
FEBS Lett
; 586(6): 778-83, 2012 Mar 23.
Article
en En
| MEDLINE
| ID: mdl-22300643
The repair of photosystem II (PSII) after photodamage is particularly sensitive to oxidative stress and inhibition of such repair is associated with the oxidation of specific cysteine residues in elongation factor G (EF-G), a key translation factor, in the cyanobacterium Synechocystis sp. PCC 6803. Expression of mutated EF-G with a target cysteine residue replaced by serine in Synechocystis resulted in the protection of PSII from photoinhibition. This protection was attributable to the enhanced repair of PSII via acceleration of the synthesis of the D1 protein, which might have been due to reduced sensitivity of protein synthesis to oxidative stress.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Oxidación-Reducción
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Factor G de Elongación Peptídica
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Complejo de Proteína del Fotosistema II
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Synechocystis
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Luz
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
FEBS Lett
Año:
2012
Tipo del documento:
Article
País de afiliación:
Japón