Proposed mechanisms for water oxidation by Photosystem II and nanosized manganese oxides

Mohamad Mahdi Najafpour; Sima Heidari; S. Esmael Balaghi; Małgorzata Hołyńska; Moayad Hossaini Sadr; Behzad Soltani; Maasoumeh Khatamian; Anthony W. Larkum; Suleyman Allakhverdiev

doi:10.1016/j.bbabio.2016.11.007

Proposed mechanisms for water oxidation by Photosystem II and nanosized manganese oxides

Mohamad Mahdi Najafpour, Sima Heidari, S. Esmael Balaghi, Małgorzata Hołyńska, Moayad Hossaini Sadr, Behzad Soltani, Maasoumeh Khatamian, Anthony W. Larkum, Suleyman Allakhverdiev

Research output: Contribution to journal › Review article

25 Citations (Scopus)

Abstract

Plants, algae and cyanobacteria capture sunlight, extracting electrons from H₂O to reduce CO₂ into sugars while releasing O₂ in the oxygenic photosynthetic process. Because of the important role of water oxidation in artificial photosynthesis and many solar fuel systems, understanding the structure and function of this unique biological catalyst forms a requisite research field. Herein the structure of the water-oxidizing complex and its ligand environment are described with reference to the 1.9 Å resolution X-ray-derived crystallographic model of the water-oxidizing complex from the cyanobacterium Thermosynechococcus vulcanus. Proposed mechanisms for water oxidation by Photosystem II and nanosized manganese oxides are also reviewed and discussed in the paper.

Original language	English
Pages (from-to)	156-174
Number of pages	19
Journal	Biochimica et Biophysica Acta - Bioenergetics
Volume	1858
Issue number	2
DOIs	https://doi.org/10.1016/j.bbabio.2016.11.007
Publication status	Published - Feb 1 2017
Externally published	Yes

Keywords

Calcium-manganese cluster
Mechanism
Nanosized manganese oxide
Oxygen
Photosynthesis
Water
Water oxidation
Water oxidation
Water oxidizing complex

ASJC Scopus subject areas

Biophysics
Biochemistry
Cell Biology

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Najafpour, M. M., Heidari, S., Balaghi, S. E., Hołyńska, M., Sadr, M. H., Soltani, B., Khatamian, M., Larkum, A. W., & Allakhverdiev, S. (2017). Proposed mechanisms for water oxidation by Photosystem II and nanosized manganese oxides. Biochimica et Biophysica Acta - Bioenergetics, 1858(2), 156-174. https://doi.org/10.1016/j.bbabio.2016.11.007

Proposed mechanisms for water oxidation by Photosystem II and nanosized manganese oxides. / Najafpour, Mohamad Mahdi; Heidari, Sima; Balaghi, S. Esmael; Hołyńska, Małgorzata; Sadr, Moayad Hossaini; Soltani, Behzad; Khatamian, Maasoumeh; Larkum, Anthony W.; Allakhverdiev, Suleyman.

In: Biochimica et Biophysica Acta - Bioenergetics, Vol. 1858, No. 2, 01.02.2017, p. 156-174.

Research output: Contribution to journal › Review article

Najafpour, Mohamad Mahdi ; Heidari, Sima ; Balaghi, S. Esmael ; Hołyńska, Małgorzata ; Sadr, Moayad Hossaini ; Soltani, Behzad ; Khatamian, Maasoumeh ; Larkum, Anthony W. ; Allakhverdiev, Suleyman. / Proposed mechanisms for water oxidation by Photosystem II and nanosized manganese oxides. In: Biochimica et Biophysica Acta - Bioenergetics. 2017 ; Vol. 1858, No. 2. pp. 156-174.

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abstract = "Plants, algae and cyanobacteria capture sunlight, extracting electrons from H2O to reduce CO2 into sugars while releasing O2 in the oxygenic photosynthetic process. Because of the important role of water oxidation in artificial photosynthesis and many solar fuel systems, understanding the structure and function of this unique biological catalyst forms a requisite research field. Herein the structure of the water-oxidizing complex and its ligand environment are described with reference to the 1.9 {\AA} resolution X-ray-derived crystallographic model of the water-oxidizing complex from the cyanobacterium Thermosynechococcus vulcanus. Proposed mechanisms for water oxidation by Photosystem II and nanosized manganese oxides are also reviewed and discussed in the paper.",

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