Is the photosystem II complex a monomer or a dimer?
Plant Cell Physiol
; 50(9): 1674-80, 2009 Sep.
Article
em En
| MEDLINE
| ID: mdl-19667103
ABSTRACT
It is widely believed that the photosystem II (PSII) complex may function as a dimer in the thylakoid membrane. Here, we report experimental conversion from the monomeric PSII to the dimeric form by treatment with high concentrations of n-dodecyl-beta-D-maltopyranoside (DM). The content of the PSII monomer in a PsbTc deletion mutant was much higher than in the wild type when solubilized with low concentrations of DM. However, upon treatment with higher concentrations of DM, the PSII dimer was also recovered in the PsbTc deletion mutant. These results suggest that there are at least two distinct processes of dimerization (i) PsbTc dependent and (ii) DM induced. We discuss the results with regard to the native assembly form(s) of PSII.
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Base de dados:
MEDLINE
Assunto principal:
Proteínas de Bactérias
/
Cianobactérias
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Complexo de Proteína do Fotossistema II
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Multimerização Proteica
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article