The structure of a ferrous heme-nitro species in the binuclear heme a3/CuB center of ba3-cytochrome c oxidase as determined by resonance Raman spectroscopy

Andreas Loullis; Mohamed Radzi Noor; Tewfik Soulimane; Eftychia Pinakoulaki

doi:10.1039/C4CC08019J

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The structure of a ferrous heme-nitro species in the binuclear heme a₃/Cu_B center of ba₃-cytochrome c oxidase as determined by resonance Raman spectroscopy†

Andreas Loullis,^a Mohamed Radzi Noor,^b Tewfik Soulimane^b and Eftychia Pinakoulaki*^a

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* Corresponding authors

^a Department of Chemistry, University of Cyprus, PO Box 20537, 1678, Nicosia, Cyprus
E-mail: effiep@ucy.ac.cy
Fax: +357-22895458

^b Chemical & Environmental Sciences Department and Materials & Surface Science Institute, University of Limerick, Limerick, Ireland

Abstract

Members of the cytochrome c oxidase family exhibit nitrite reductase activity. In this work, we have characterized a ferrous heme a₃-nitro species in ba₃-oxidase by resonance Raman spectroscopy. This provides the first evidence for the structure of a nitrite-bound species in the binuclear heme/copper center of cytochrome c oxidases.

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Article information

DOI: https://doi.org/10.1039/C4CC08019J
Article type: Communication
Submitted: 10 Oct 2014
Accepted: 10 Nov 2014
First published: 10 Nov 2014

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Chem. Commun., 2015,51, 286-289

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The structure of a ferrous heme-nitro species in the binuclear heme a₃/Cu_B center of ba₃-cytochrome c oxidase as determined by resonance Raman spectroscopy

A. Loullis, M. R. Noor, T. Soulimane and E. Pinakoulaki, Chem. Commun., 2015, 51, 286 DOI: 10.1039/C4CC08019J

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