Second and outer coordination sphere effects in nitrogenase, hydrogenase, formate dehydrogenase, and CO dehydrogenase

ST Stripp, BR Duffus, V Fourmond, C Léger… - Chemical …, 2022 - ACS Publications
Gases like H2, N2, CO2, and CO are increasingly recognized as critical feedstock in “green”
energy conversion and as sources of nitrogen and carbon for the agricultural and chemical …

Hydrogenases

W Lubitz, H Ogata, O Rudiger, E Reijerse - Chemical reviews, 2014 - ACS Publications
The reaction takes place at a specialized metal center that dramatically increases the acidity
of H2 and leads to a heterolytic splitting of the molecule which is strongly accelerated by the …

Structure/function relationships of [NiFe]-and [FeFe]-hydrogenases

JC Fontecilla-Camps, A Volbeda, C Cavazza… - Chemical …, 2007 - ACS Publications
The utilization of hydrogen by micro-organisms as a source of reducing power or of protons
as final electron acceptors is mediated by metalloenzymes called hydrogenases. The need …

Activation and inactivation of hydrogenase function and the catalytic cycle: spectroelectrochemical studies

AL De Lacey, VM Fernandez, M Rousset… - Chemical …, 2007 - ACS Publications
Hydrogen, the most abundant element in the Universe, is considered to be an environmental
friendly energy carrier because its combustion generates water. Nowadays, owing to the …

Removal of the bridging ligand atom at the Ni–Fe active site of [NiFe] hydrogenase upon reduction with H2, as revealed by X-ray structure analysis at 1.4 Å resolution

Y Higuchi, H Ogata, K Miki, N Yasuoka, T Yagi - Structure, 1999 - cell.com
Background: The active site of [NiFe] hydrogenase, a heterodimeric protein, is suggested to
be a binuclear Ni–Fe complex having three diatomic ligands to the Fe atom and three …

Metabolic reconstruction and modeling microbial electrosynthesis

CW Marshall, DE Ross, KM Handley, PB Weisenhorn… - Scientific reports, 2017 - nature.com
Microbial electrosynthesis is a renewable energy and chemical production platform that
relies on microbial cells to capture electrons from a cathode and fix carbon. Yet despite the …

[NiFe] hydrogenases: structural and spectroscopic studies of the reaction mechanism

H Ogata, W Lubitz, Y Higuchi - Dalton Transactions, 2009 - pubs.rsc.org
[NiFe] hydrogenases catalyze the reversible oxidation of dihydrogen. For this simple
reaction the molecule has developed a complex catalytic mechanism, during which the …

The crystal structure of the [NiFe] hydrogenase from the photosynthetic bacterium Allochromatium vinosum: characterization of the oxidized enzyme (Ni-A state)

H Ogata, P Kellers, W Lubitz - Journal of molecular biology, 2010 - Elsevier
The crystal structure of the membrane-associated [NiFe] hydrogenase from Allochromatium
vinosum has been determined to 2.1 Å resolution. Electron paramagnetic resonance (EPR) …

From iron to bacterial electroconductive filaments: exploring cytochrome diversity using Geobacter bacteria

CA Salgueiro, L Morgado, MA Silva, MR Ferreira… - Coordination Chemistry …, 2022 - Elsevier
Iron is the most versatile of all biochemically active metals, with variability encompassing its
electronic configuration, number of unpaired electrons, type of ligands and iron-complexes …

Elucidating film loss and the role of hydrogen bonding of adsorbed redox enzymes by electrochemical quartz crystal microbalance analysis

VM Badiani, SJ Cobb, A Wagner, AR Oliveira… - Acs …, 2022 - ACS Publications
The immobilization of redox enzymes on electrodes enables the efficient and selective
electrocatalysis of useful reactions such as the reversible interconversion of dihydrogen (H2) …