New interpretation of the redox properties of cytochrome b559 in photosystem II

2016 ◽  
Vol 466 (1) ◽  
pp. 39-42
Author(s):  
O. P. Kaminskaya ◽  
V. A. Shuvalov
Keyword(s):  
Photosystem Ii ◽  
Redox Properties ◽  
Cytochrome B559 ◽  
New Interpretation

The photoproduction of superoxide radicals and the superoxide dismutase activity of Photosystem II. The possible involvement of cytochrome b559

1994 ◽  
Vol 41 (2) ◽  
pp. 327-338 ◽  
Author(s):  
Gennady Ananyev ◽  
Gernot Renger ◽  
Ulrich Wacker ◽  
Vyacheslav Klimov
Keyword(s):  
Superoxide Dismutase ◽  
Photosystem Ii ◽  
Superoxide Radicals ◽  
Superoxide Dismutase Activity ◽  
Cytochrome B559

scholarly journals Mass spectrometry-based cross-linking study shows that the Psb28 protein binds to cytochrome b559 in Photosystem II

2017 ◽  
Vol 114 (9) ◽  
pp. 2224-2229 ◽  
Author(s):  
Daniel A. Weisz ◽  
Haijun Liu ◽  
Hao Zhang ◽  
Sundarapandian Thangapandian ◽  
Emad Tajkhorshid ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Photosystem Ii ◽  
Protein Interactions ◽  
Protein Complexes ◽  
Protein Docking ◽  
Cross Linking ◽  
Protein Protein Interactions ◽  
Cytochrome B559 ◽  
Reaction Center Complex ◽  
Assembly Intermediate

Photosystem II (PSII), a large pigment protein complex, undergoes rapid turnover under natural conditions. During assembly of PSII, oxidative damage to vulnerable assembly intermediate complexes must be prevented. Psb28, the only cytoplasmic extrinsic protein in PSII, protects the RC47 assembly intermediate of PSII and assists its efficient conversion into functional PSII. Its role is particularly important under stress conditions when PSII damage occurs frequently. Psb28 is not found, however, in any PSII crystal structure, and its structural location has remained unknown. In this study, we used chemical cross-linking combined with mass spectrometry to capture the transient interaction of Psb28 with PSII. We detected three cross-links between Psb28 and the α- and β-subunits of cytochrome b559, an essential component of the PSII reaction-center complex. These distance restraints enable us to position Psb28 on the cytosolic surface of PSII directly above cytochrome b559, in close proximity to the QB site. Protein–protein docking results also support Psb28 binding in this region. Determination of the Psb28 binding site and other biochemical evidence allow us to propose a mechanism by which Psb28 exerts its protective effect on the RC47 intermediate. This study also shows that isotope-encoded cross-linking with the “mass tags” selection criteria allows confident identification of more cross-linked peptides in PSII than has been previously reported. This approach thus holds promise to identify other transient protein–protein interactions in membrane protein complexes.

Cytochrome b559 within Photosystem II: Studies on Its Photoreduction and Photooxidation in Pea and Targeted Mutagenesis of Its Genes in Chlamydomonas

1995 ◽  
pp. 1557-1560
Author(s):  
Javier De Las Rivas ◽  
Francisco Morais ◽  
Peter Nixon ◽  
James Barber
Keyword(s):  
Photosystem Ii ◽  
Targeted Mutagenesis ◽  
Cytochrome B559

The Role of Cytochrome b559 in Photoreactivation of Oxygen-Evolving Center of Photosystem II Membranes

1995 ◽  
pp. 1509-1512
Author(s):  
Naoki Mizusawa ◽  
Mitsue Miyao ◽  
Takashi Yamashita
Keyword(s):  
Photosystem Ii ◽  
Cytochrome B559 ◽  
Oxygen Evolving

The Impact of the F26S Mutation in the β Subunit of Cytochrome b559 on the Function and Stability of Photosystem II in Tobacco

1995 ◽  
pp. 927-930
Author(s):  
Tsafrir. S. Mor ◽  
Himadri B. Pakrasi ◽  
Itzhak Ohad
Keyword(s):  
Photosystem Ii ◽  
Β Subunit ◽  
Cytochrome B559 ◽  
The Impact

Study of the nature of biphasic reduction of cytochrome b559 by plastoquinol in photosystem II membrane fragments

2012 ◽  
Vol 447 (1) ◽  
pp. 273-276 ◽  
Author(s):  
O. P. Kaminskaya ◽  
L. G. Erokhina ◽  
V. A. Shuvalov
Keyword(s):  
Photosystem Ii ◽  
Cytochrome B559

Low-temperature modulation of the redox properties of the acceptor side of photosystem II: photoprotection through reaction centre quenching of excess energy

2003 ◽  
Vol 119 (3) ◽  
pp. 376-383 ◽  
Author(s):  
Alexander G. Ivanov ◽  
Prafullachandra Sane ◽  
Vaughan Hurry ◽  
Marianna Król ◽  
Dimitry Sveshnikov ◽  
...  
Keyword(s):  
Low Temperature ◽  
Photosystem Ii ◽  
Excess Energy ◽  
Redox Properties ◽  
Temperature Modulation ◽  
Reaction Centre ◽  
Acceptor Side

Photooxidation of cytochrome b559 in oxygen-evolving photosystem II

Biochemistry ◽  
1992 ◽  
Vol 31 (46) ◽  
pp. 11449-11459 ◽  
Author(s):  
Carolyn A. Buser ◽  
Bruce A. Diner ◽  
Gary W. Brudvig
Keyword(s):  
Photosystem Ii ◽  
Cytochrome B559 ◽  
Oxygen Evolving
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