The PsbP-like protein (sll1418) of Synechocystis sp. PCC 6803 stabilises the donor side of Photosystem II
2007 (English)In: Photosynthesis Research, ISSN 0166-8595 (Print) 1573-5079 (Online), Vol. 93, no 1-3, 101-109 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
Springer , 2007. Vol. 93, no 1-3, 101-109 p.
Photosynthesis, Photosystem II, Oxygen evolution, Extrinsic proteins, Manganese cluster, PsbP, Synechocystis sp. PCC 6803
IdentifiersURN: urn:nbn:se:umu:diva-14183DOI: doi:10.1007/s11120-007-9171-3OAI: oai:DiVA.org:umu-14183DiVA: diva2:153854
Subject Collection Biomedical and Life Sciences
SpringerLink Date Tuesday, May 22, 20072007-05-242007-05-242011-06-15Bibliographically approved