Results 31 to 40 of about 17,663 (189)
BMC Microbiology, 2009 Background The last step in the maturation process of the large subunit of [NiFe]-hydrogenases is a proteolytic cleavage of the C-terminal by a hydrogenase specific protease.
Lindblad Peter +3 more
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Fermentation, 2018 Clostridium acetobutylicum has traditionally been used for production of acetone, butanol, and ethanol (ABE). Butanol is a commodity chemical due in part to its suitability as a biofuel; however, the current yield of this product from biological systems ...
Katherine L. Germane +9 more
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The [FeFe] hydrogenase of
BMC Evolutionary Biology, 2007 Background The hydrogenosomes of the anaerobic ciliate Nyctotherus ovalis show how mitochondria can evolve into hydrogenosomes because they possess a mitochondrial genome and parts of an electron-transport chain on the one hand, and a hydrogenase on the ...
Jouany Jean-Pierre +16 more
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Hydrogen-fueled CO2 reduction using oxygen-tolerant oxidoreductases
Frontiers in Bioengineering and Biotechnology, 2023 Hydrogen gas obtained from cheap or sustainable sources has been investigated as an alternative to fossil fuels. By using hydrogenase (H2ase) and formate dehydrogenase (FDH), H2 and CO2 gases can be converted to formate, which can be conveniently stored ...
Jaehyun Cha +3 more
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Classification and phylogeny of hydrogenases [PDF]
FEMS Microbiology Reviews, 2001 Hydrogenases (H2ases) catalyze the reversible oxidation of molecular hydrogen and play a central role in microbial energy metabolism. Most of these enzymes are found in Archaea and Bacteria, but a few are present in Eucarya as well. They can be distributed into three classes: the [Fe]-H2ases, the [NiFe]-H2ases, and the metal-free H2ases.
P M, Vignais, B, Billoud, J, Meyer
openaire +2 more sources
Distribution analysis of hydrogenases in surface waters of marine and freshwater environments. [PDF]
PLoS ONE, 2010 BACKGROUND: Surface waters of aquatic environments have been shown to both evolve and consume hydrogen and the ocean is estimated to be the principal natural source.
Martin Barz +12 more
doaj +1 more source
Kinetic Studies on Hydrogenase
Journal of Biological Chemistry, 1963 The kinetics of hydrogenase from Clostridium pasteurianum and from Proteus vulgaris were studied by measuring the HD and D/sub 2/ produced when the enzyme catalyzes the exchange between H/sub 2/ and 100% D/sub 2/O. The ratio of D/sub 2/ to HD production depends on the enzyme concentration because the HD produced by the exchange of H/sub 2/ can react ...
N, TAMIYA, S L, MILLER
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Photoinhibition of FeFe Hydrogenase [PDF]
ACS Catalysis, 2017 In the enzyme FeFe hydrogenase, hydrogen oxidation and production occur at the H-cluster, a Fe6S6 active site that bears intrinsic carbonyl and cyanide ligands. This enzyme has been coupled to photosensitizers to design H2 photoproduction systems, and yet, according to earlier reports, the enzyme from Desulfovibrio desulfuricans is "easily destroyed ...
Sensi, Matteo +11 more
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Non‐Noble Metal Nanocatalysts for Hydrogen Evolution
Advanced Science, EarlyView.Recent overviews and latest developments of diverse classes of non‐noble catalysts for application toward high‐performance photocatalysis, thermocatalytic steam reforming, and electrocatalysis. Toward sustainability objectives, several advanced characterization tools in combination with the latest breakthroughs in machine learning for material ...
Lina Jaya Diguna +7 more
wiley +1 more source
Respiratory membrane endo-hydrogenase activity in the microaerophile Azorhizobium caulinodans is bidirectional. [PDF]
PLoS ONE, 2012 BACKGROUND: The microaerophilic bacterium Azorhizobium caulinodans, when fixing N(2) both in pure cultures held at 20 µM dissolved O(2) tension and as endosymbiont of Sesbania rostrata legume nodules, employs a novel, respiratory-membrane endo ...
Brittany N Sprecher +2 more
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