The PsbP-like protein (sll1418) of Synechocystis sp. PCC 6803 stabilises the donor side of Photosystem II

Subject Collection Biomedical and Life Sciences SpringerLink Date Tuesday, May 22, 2007
The PsbP-like protein of the cyanobacterium Synechocystis sp. PCC 6803 is a peripheral component of Photosystem II, located at the lumenal side of the thylakoid membrane. Removal of this protein leads to decreased competitive potential of a PsbP-like deletion mutant when grown in a mixture with wild-type cells. Flash-induced oxygen evolution traces of the mutant show a higher probability of misses, correlated with increased amplitudes of the S-states decay in the dark. Thermoluminescence emission traces demonstrate a changed charge recombination pattern in the mutant, the S3QB− couple becoming the major species instead of the S2QB−. Our data suggest a possible role of the PsbP-like protein in stabilisation of the charge separation in Photosystem II of cyanobacteria through interaction with the Mn cluster.

Funk, ChristianeUmeå universitet,Kemiska institutionen(Swepub:umu)chefuk04 (författare)
Schröder, WolfgangUmeå universitet,Kemiska institutionen(Swepub:umu)wosc0001 (författare)
Umeå universitetKemiska institutionen (creator_code:org_t)

Av författaren/redakt...: Sveshnikov, Dmit ...; Funk, Christiane; Schröder, Wolfga ...

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