Results 31 to 40 of about 42,156 (211)

Tyrosine, cysteine, and S-adenosyl methionine stimulate in vitro [FeFe] hydrogenase activation. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:[FeFe] hydrogenases are metalloenzymes involved in the anaerobic metabolism of H(2). These proteins are distinguished by an active site cofactor known as the H-cluster.
Jon M Kuchenreuther   +2 more
doaj   +1 more source

Genomic Inference of the Metabolism and Evolution of the Archaeal Phylum Aigarchaeota [PDF]

open access: yes, 2018
Microbes of the phylum Aigarchaeota are widely distributed in geothermal environments, but their physiological and ecological roles are poorly understood.
Castelle, Cindy J.   +14 more
core   +3 more sources

H2-Driven Reduction of Flavin by Hydrogenase Enables Cleaner Operation of Nitroreductases for Nitro-Group to Amine Reductions

open access: yesFrontiers in Catalysis, 2022
Hydrogenase-mediated reduction of flavin mononucleotide by H2 is exploited to enable cleaner application of nitroreductase enzymes for reduction of aromatic nitro functional groups. This turns the overall reaction into a biocatalytic hydrogenation.
Miguel A. Ramirez   +5 more
doaj   +1 more source

Induction of photosynthesis under anoxic condition in Thalassiosira pseudonana and Euglena gracilis: interactions between fermentation and photosynthesis

open access: yesFrontiers in Plant Science, 2023
IntroductionIn their natural environment, microalgae can be transiently exposed to hypoxic or anoxic environments. Whereas fermentative pathways and their interactions with photosynthesis are relatively well characterized in the green alga model ...
Gwenaëlle Gain   +5 more
doaj   +1 more source

Chromatium hydrogenase. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1977
Previous reports of a relatively air-stable soluble hydrogenase from the photosynthetic anaerobe, Chromatium vinosum, have been substantiated. The properties of this enzyme, as seen in highly purified samples prepared by procedures that permit improved yields, are described. A possible role for flavin mediation is noted.
T, Kakuno, N O, Kaplan, M D, Kamen
openaire   +2 more sources

Role of the reversible electrochemical deprotonation of phosphate species in anaerobic biocorrosion of steels [PDF]

open access: yes, 2007
Sulphate reducing bacteria are known to play a major role in anaerobic microbiological influenced corrosion of steels, but mechanisms behind their influence are still source of debates as certain phenomena remain unexplained.
Alain Bergel   +53 more
core   +3 more sources

Hyperpolarization of Molecular Deuterium

open access: yesAngewandte Chemie, EarlyView.
Hyperpolarized molecular deuterium is generated and detected using a nonhydrogenative SABRE catalyst with nicotinamide. The resonance shows a strongly enhanced partially negative line, substrate‐dependent and sensitive to transient intermediates.
Theresa L. K. Hune   +5 more
wiley   +2 more sources

Nitrogen Fixation Mutants of the Actinobacterium Frankia Casuarinae CcI3 [PDF]

open access: yes, 2017
Frankia is a representative genus of nitrogen-fixing (N2-fixing) actinobacteria; however, the molecular mechanisms underlying various phenomena such as the differentiation of a N2 fixation-specific structure (vesicle) and the regulation of N2 fixation ...
Kucho, Ken-ichi   +4 more
core   +2 more sources

CO2-Induced Transcriptional Reorganization: Molecular Basis of Capnophillic Lactic Fermentation in Thermotoga neapolitana [PDF]

open access: yes, 2020
Capnophilic lactic fermentation (CLF) is a novel anaplerotic pathway able to convert sugars to lactic acid (LA) and hydrogen using CO2 as carbon enhancer in the hyperthermophilic bacterium Thermotoga neapolitana.
Dipasquale, Laura   +7 more
core   +2 more sources

Structural Insights Into CO2 Transport Pathways in a W‐Formate Dehydrogenase: Structural Basis for CO2 Reduction

open access: yesAngewandte Chemie, EarlyView.
Integrated structural analysis of N. vulgaris formate dehydrogenase AB, an enzyme with applications in climate change mitigation, is reported. The substrate/product diffusion pathways were fully mapped, and a retention site was identified that transiently holds substrates and has a key role in CO2‐reducing activity.
Guilherme Vilela‐Alves   +8 more
wiley   +2 more sources

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