Structural–Functional Role of Chloride in Photosystem II
Biochemistry2011Vol. 50(29), pp. 6312–6315
Citations Over TimeTop 10% of 2011 papers
Ivan Rivalta, Muhamed Amin, Sandra Luber, S. Vassiliev, Ravi Pokhrel, Yasufumi Umena, Keisuke Kawakami, Jian‐Ren Shen, Nobuo Kamiya, Doug Bruce, Gary W. Brudvig, M. R. Gunner, Víctor S. Batista
Abstract
Chloride binding in photosystem II (PSII) is essential for photosynthetic water oxidation. However, the functional roles of chloride and possible binding sites, during oxygen evolution, remain controversial. This paper examines the functions of chloride based on its binding site revealed in the X-ray crystal structure of PSII at 1.9 Å resolution. We find that chloride depletion induces formation of a salt bridge between D2-K317 and D1-D61 that could suppress the transfer of protons to the lumen.
Related Papers
- → Heat inactivation of oxygen evolution in Photosystem II particles and its acceleration by chloride depletion and exogenous manganese(1985)236 cited
- → Chloride facilitates Mn(III) formation during photoassembly of the Photosystem II oxygen-evolving complex(2021)12 cited
- → Elucidation of a multiple S3 intermediates model for water oxidation in the oxygen evolving complex of photosystem II. Calcium-assisted concerted O O bond formation(2022)10 cited
- → A Structural Model for the Photosynthetic Oxygen Evolving Manganese Complex(1993)10 cited
- → Reactivation of oxygen evolution of NaCl-washed Photosystem-II particles by Ca2+ and/or the 24 kDa protein(1985)64 cited