Results 91 to 100 of about 42,156 (211)

Kinetic Studies on Hydrogenase

open access: yesJournal 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
openaire   +2 more sources

Activity‐Informed Network Analysis Reveals Keystone Microbes Shaping Freshwater Ecosystem Function

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 2, April 2026.
Graphical abstract illustrating the workflow and key findings of this study. We first applied SPIEC‐EASI to metagenomic abundance data to construct microbial co‐occurrence networks and selected the top 15 MAGs based on degree centrality. We then used CARlasso to detect relationships between the top MAGs and environmental features.
Qiyao Yang   +4 more
wiley   +1 more source

Energy Conservation via Hydrogen Cycling in the Methanogenic Archaeon Methanosarcina barkeri

open access: yesmBio, 2018
Energy conservation via hydrogen cycling, which generates proton motive force by intracellular H2 production coupled to extracellular consumption, has been controversial since it was first proposed in 1981.
Gargi Kulkarni   +2 more
doaj   +1 more source

Functional responses of methanogenic archaea to syntrophic growth. [PDF]

open access: yes, 2012
Methanococcus maripaludis grown syntrophically with Desulfovibrio vulgaris was compared with M. maripaludis monocultures grown under hydrogen limitation using transcriptional, proteomic and metabolite analyses.
Arkin, Adam P   +13 more
core   +2 more sources

Sulfur‐Rich μ‐O Diiron Catalyst for Electrochemical Hydrogen Production

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 8, 10 March 2026.
A diferric μ‐oxido complex supported by a sulfur‐rich scaffold acts as a proton‐reduction electrocatalyst for H2 production via a μ‐hydroxido species. An aminodithiophenolate scaffold with an NS2 donor set supports diiron complex formation. The diferrous precursor activates O2, giving rise to a diferric μ‐oxido species, which acts as a proton‐reduction
Hugo C. Hernández‐Toledo   +7 more
wiley   +1 more source

Hydroxycarboxylic Acid Receptor 2 Mediates β‐hydroxybutyrate's Antiseizure Effect in Mice

open access: yesAnnals of Neurology, Volume 99, Issue 3, Page 809-824, March 2026.
A[Color figure can be viewed at www.annalsofneurology.org] Objective The ketogenic diet, a high‐fat, low‐carbohydrate regimen, is often used to treat drug‐resistant seizures and is being studied for Alzheimer's disease and other neuropsychiatric disorders. However, its mechanism of action remains unclear. β‐hydroxybutyrate, a primary circulating ketone
Soudabeh Naderi   +10 more
wiley   +1 more source

Hydrogen Evolution via Oxygen Tolerant [NiFe]‐Hydrogenase Immobilized on TiO2 Nanotubes

open access: yesNano Select
[FeFe]‐hydrogenase has been of great interest due to its high enzymatic activity for hydrogen evolution reactions (HERs). However, the big challenge of [FeFe]‐hydrogenase is a significant performance degradation in aerobic conditions. On the other hand, [
Hwapyong Kim   +5 more
doaj   +1 more source

Making the H-Cluster from Scratch [PDF]

open access: yes, 2014
Spectroscopic data begin to elucidate the initial steps in the biosynthesis of the hydrogenase active site. [Also see Report by Kuchenreuther et al.
Pickett, Christopher
core   +1 more source

Increasing the succinate yield in Actinobacillus succinogenes by fumigation of H2 in a bioreactor

open access: yesBiofuels, Bioproducts and Biorefining, Volume 20, Issue 2, Page 591-605, March/April 2026.
Abstract The microbial conversion of CO2 into value‐added chemicals offers a promising and scalable route for sustainable bioproduction, particularly under mild reaction conditions and with technically straightforward reactor configurations. Actinobacillus succinogenes, a natural succinate producer, can fix CO2 through anaplerotic carboxylation but its
Julian Tix   +3 more
wiley   +1 more source

Hydrazine Synthase From Anammox Is Inhibited by Linear and Aromatic Alkynes

open access: yesEnvironmental Microbiology, Volume 28, Issue 3, March 2026.
Linear and aromatic alkynes inhibit anammox in culture and in wetlands. The inhibition by alkynes is specific to the hydrazine synthase, a key enzyme in the anammox pathway. ABSTRACT N2O emissions by nitrifiers are often estimated using selective inhibitors, such as 1‐alkynes.
Cerys Maryan   +7 more
wiley   +1 more source

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