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The D1-D61N mutation in Synechocystis sp. PCC 6803 allows the observation of pH-sensitive intermediates in the formation and release of O₂ from photosystem II.

Biochemistry - 14 Feb 2012

Dilbeck Preston L, Hwang Hong Jin, Zaharieva Ivelina, Gerencser Laszlo, Dau Holger, Burnap Robert L

Abstract excerpt

The active site of photosynthetic water oxidation by Photosystem II (PSII) is a manganese-calcium cluster (Mn(4)CaO(5)). A postulated catalytic base is assumed to be crucial. CP43-Arg357, which is a candidate for the identity of this base, is a second-sphere ligand of the Mn(4)-Ca cluster and is located near a putative proton exit pathway, which begins with residue D1-D61. Transient absorption spectroscopy and...

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PMID: 22191538
DOI: 10.1021/bi201659f

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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The D1-D61N mutation in Synechocystis sp. PCC 6803 allows the observation of pH-sensitive intermediates in the formation and release of O₂ from photosystem II.PMID 22191538Read ↗

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