[HTML][HTML] Mössbauer spectroscopy of Fe/S proteins

ME Pandelia, ND Lanz, SJ Booker, C Krebs - Biochimica et Biophysica Acta …, 2015 - Elsevier
Abstract Iron-sulfur (Fe/S) clusters are structurally and functionally diverse cofactors that are
found in all domains of life. 57 Fe Mössbauer spectroscopy is a technique that provides …

Infrared Spectroscopy During Electrocatalytic Turnover Reveals the Ni‐L Active Site State During H2 Oxidation by a NiFe Hydrogenase

R Hidalgo, PA Ash, AJ Healy… - Angewandte Chemie …, 2015 - Wiley Online Library
A novel in situ IR spectroscopic approach is demonstrated for the characterization of
hydrogenase during catalytic turnover. E. coli hydrogenase 1 (Hyd‐1) is adsorbed on a high …

Discovery of Dark pH-Dependent H+ Migration in a [NiFe]-Hydrogenase and Its Mechanistic Relevance: Mobilizing the Hydrido Ligand of the Ni-C Intermediate

BJ Murphy, R Hidalgo, MM Roessler… - Journal of the …, 2015 - ACS Publications
Despite extensive studies on [NiFe]-hydrogenases, the mechanism by which these enzymes
produce and activate H2 so efficiently remains unclear. A well-known EPR-active state …

Hydrogen in metabolism of purple bacteria and prospects of practical application

AA Tsygankov, AN Khusnutdinova - Microbiology, 2015 - Springer
Purple bacteria are able to use H 2 for photoautotrophic, photomixotrophic, and
chemoautotrophic growth, exhibiting high metabolic lability. Depending on the type of …

Cofactor composition and function of a H 2-sensing regulatory hydrogenase as revealed by Mössbauer and EPR spectroscopy

F Roncaroli, E Bill, B Friedrich, O Lenz, W Lubitz… - Chemical …, 2015 - pubs.rsc.org
The regulatory hydrogenase (RH) from Ralstonia eutropha H16 acts as a sensor for the
detection of environmental H2 and regulates gene expression related to hydrogenase …

Reversible Active Site Sulfoxygenation Can Explain the Oxygen Tolerance of a NAD+-Reducing [NiFe] Hydrogenase and Its Unusual Infrared Spectroscopic …

M Horch, L Lauterbach, MA Mroginski… - Journal of the …, 2015 - ACS Publications
Oxygen-tolerant [NiFe] hydrogenases are metalloenzymes that represent valuable model
systems for sustainable H2 oxidation and production. The soluble NAD+-reducing [NiFe] …

Oxygen-tolerant hydrogenases and their biotechnological potential

O Lenz, L Lauterbach, S Frielingsdorf, B Friedrich - Biohydrogen, 2015 - degruyter.com
Hydrogenases are nature's catalysts designed to extract protons from molecular hydrogen
(H2) thereby forming a reactive hydride species (H−). Those enzymes capable of catalyzing …

The [NiFe]-Hydrogenase of Pyrococcus furiosus Exhibits a New Type of Oxygen Tolerance

P Kwan, CL McIntosh, DP Jennings… - Journal of the …, 2015 - ACS Publications
We report the first direct electrochemical characterization of the impact of oxygen on the
hydrogen oxidation activity of an oxygen-tolerant, group 3, soluble [NiFe]-hydrogenase …

Orientation-controlled electrocatalytic efficiency of an adsorbed oxygen-tolerant hydrogenase

N Heidary, T Utesch, M Zerball, M Horch, D Millo… - PLoS …, 2015 - journals.plos.org
Protein immobilization on electrodes is a key concept in exploiting enzymatic processes for
bioelectronic devices. For optimum performance, an in-depth understanding of the enzyme …

Oxygen tolerance of a molecular engineered cathode for hydrogen evolution based on a cobalt diimine–dioxime catalyst

N Kaeffer, A Morozan, V Artero - The Journal of Physical Chemistry …, 2015 - ACS Publications
We report here that a bioinspired cobalt diimine–dioxime molecular catalyst for hydrogen
evolution immobilized onto carbon nanotube electrodes proves tolerant toward oxygen. The …