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Spectroscopic characterization of the key catalytic intermediate Ni-C in the O sub(2)-tolerant [NiFe] hydrogenase I from Aquifex aeolicus: evidence of a weakly bound hydride
Journal article

Spectroscopic characterization of the key catalytic intermediate Ni-C in the O sub(2)-tolerant [NiFe] hydrogenase I from Aquifex aeolicus: evidence of a weakly bound hydride

Maria-Eirini Pandelia, Pascale Infossi, Matthias Stein, Marie-Therese Giudici-Orticoni and Wolfgang Lubitz
Chemical communications (Cambridge, England), Vol.48(6), pp.823-825
12/01/2011
DOI: https://doi.org/10.1039/c1cc16109a
PMID: 22143669

Abstract

Hydrogenase Nickel base alloys Iron compounds Catalysts Nickel compounds Nickel Hydrides Catalysis
Ni-C in the O sub(2)-tolerant hydrogenase I from Aquifex aeolicusbinds a hydride weaker than that in O sub(2)-sensitive hydrogenases. This is in line with the enhanced light-sensitivity of Ni-C, greater lability of the hydride complex and increased catalytic redox potentials relevant to bio-H sub(2) oxidation.

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