Journal
DALTON TRANSACTIONS
Volume 47, Issue 13, Pages 4408-4423Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7dt04910b
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Funding
- JST CREST [JPMJCR12M4]
- JSPS [JP16K17936]
- Scientific Research on Innovative Areas [JP15H00945]
- Grants-in-Aid for Scientific Research [16K17936] Funding Source: KAKEN
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[NiFe] hydrogenase (H(2)ase) catalyzes the oxidation of dihydrogen to two protons and two electrons and/or its reverse reaction. For this simple reaction, the enzyme has developed a sophisticated but intricate mechanism with heterolytic cleavage of dihydrogen (or a combination of a hydride and a proton), where its Ni-Fe active site exhibits various redox states. Recently, thermodynamic parameters of the acid-base equilibrium for activation-inactivation, a new intermediate in the catalytic reaction, and new crystal structures of [NiFe] H(2)ases have been reported, providing significant insights into the activation-inactivation and catalytic reaction mechanisms of [NiFe] H(2)ases. This Perspective provides an overview of the reaction mechanisms of [NiFe] H(2)ases based on these new findings.
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