Structural-functional role of chloride in photosystem II

Ivan Rivalta, Muhamed Amin, Sandra Luber, Serguei Vassiliev, Ravi Pokhrel, Yasufumi Umena, Keisuke Kawakami, Jian Ren Shen, Nobuo Kamiya, Doug Bruce, Gary W Brudvig, M. R. Gunner, Victor S. Batista

Research output: Contribution to journalArticle

85 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)6312-6315
Number of pages4
JournalBiochemistry
Volume50
Issue number29
DOIs
Publication statusPublished - Jul 26 2011

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Photosystem II Protein Complex
Chlorides
Binding Sites
Protons
Salts
Crystal structure
X-Rays
Oxygen
X rays
Oxidation
Water

ASJC Scopus subject areas

  • Biochemistry

Cite this

Rivalta, I., Amin, M., Luber, S., Vassiliev, S., Pokhrel, R., Umena, Y., ... Batista, V. S. (2011). Structural-functional role of chloride in photosystem II. Biochemistry, 50(29), 6312-6315. https://doi.org/10.1021/bi200685w

Structural-functional role of chloride in photosystem II. / Rivalta, Ivan; Amin, Muhamed; Luber, Sandra; Vassiliev, Serguei; Pokhrel, Ravi; Umena, Yasufumi; Kawakami, Keisuke; Shen, Jian Ren; Kamiya, Nobuo; Bruce, Doug; Brudvig, Gary W; Gunner, M. R.; Batista, Victor S.

In: Biochemistry, Vol. 50, No. 29, 26.07.2011, p. 6312-6315.

Research output: Contribution to journalArticle

Rivalta, I, Amin, M, Luber, S, Vassiliev, S, Pokhrel, R, Umena, Y, Kawakami, K, Shen, JR, Kamiya, N, Bruce, D, Brudvig, GW, Gunner, MR & Batista, VS 2011, 'Structural-functional role of chloride in photosystem II', Biochemistry, vol. 50, no. 29, pp. 6312-6315. https://doi.org/10.1021/bi200685w
Rivalta I, Amin M, Luber S, Vassiliev S, Pokhrel R, Umena Y et al. Structural-functional role of chloride in photosystem II. Biochemistry. 2011 Jul 26;50(29):6312-6315. https://doi.org/10.1021/bi200685w
Rivalta, Ivan ; Amin, Muhamed ; Luber, Sandra ; Vassiliev, Serguei ; Pokhrel, Ravi ; Umena, Yasufumi ; Kawakami, Keisuke ; Shen, Jian Ren ; Kamiya, Nobuo ; Bruce, Doug ; Brudvig, Gary W ; Gunner, M. R. ; Batista, Victor S. / Structural-functional role of chloride in photosystem II. In: Biochemistry. 2011 ; Vol. 50, No. 29. pp. 6312-6315.
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