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Issue 75, 2017
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Equilibrium between inactive ready Ni-SIr and active Ni-SIa states of [NiFe] hydrogenase studied by utilizing Ni-SIr-to-Ni-SIa photoactivation

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Abstract

Previously, the Ni-SIr state of [NiFe] hydrogenase was found to convert to the Ni-SIa state by light irradiation. Herein, large activation energies and a large kinetic isotope effect were obtained for the reconversion of the Ni-SIa state to the Ni-SIr state after the Ni-SIr-to-Ni-SIa photoactivation, suggesting that the Ni-SIa state reacts with H2O and leaves a bridging hydroxo ligand for the Ni-SIr state.

Graphical abstract: Equilibrium between inactive ready Ni-SIr and active Ni-SIa states of [NiFe] hydrogenase studied by utilizing Ni-SIr-to-Ni-SIa photoactivation

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Supplementary files

Article information


Submitted
03 Aug 2017
Accepted
30 Aug 2017
First published
30 Aug 2017

Chem. Commun., 2017,53, 10444-10447
Article type
Communication

Equilibrium between inactive ready Ni-SIr and active Ni-SIa states of [NiFe] hydrogenase studied by utilizing Ni-SIr-to-Ni-SIa photoactivation

H. Tai, L. Xu, K. Nishikawa, Y. Higuchi and S. Hirota, Chem. Commun., 2017, 53, 10444
DOI: 10.1039/C7CC06061K

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