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Article

Evidence for delocalized anticooperative flash induced proton binding as revealed by mutants at the M266His iron ligand in bacterial reaction centers.

Biochemistry - 17 Apr 2007

Cheap Hélène, Tandori Julia, Derrien Valérie, Benoit Mireille, de Oliveira Pedro, Koepke Juergen, Lavergne Jérôme, Maroti Peter, Sebban Pierre

Abstract excerpt

Bacterial reaction centers (RCs) convert light energy into chemical free energy via the double reduction and protonation of the secondary quinone electron acceptor, QB, to the dihydroquinone QBH2. Two RC mutants (M266His --> Leu and M266His --> Ala) with a modified ligand of the non-heme iron have been studied by flash-induced absorbance change spectroscopy. No important changes were observed for the rate...

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PMID: 17378585
DOI: 10.1021/bi602416s

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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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