Results 41 to 50 of about 35,705 (280)
A nonmitochondrial hydrogen production in Naegleria gruberi [PDF]
, 2014 Naegleria gruberi is a free-living heterotrophic aerobic amoeba well known for its ability to transform from an amoeba to a flagellate form. The genome of N.
Šutak, Robert +4 more
core +1 more source
A Non‐Covalent [4Fe–4S]/[2Fe] Interface in HydF Guides [FeFe]‐Hydrogenase Maturation
Angewandte Chemie, EarlyView.Bridged or not? 57Fe NRVS reveals a non‐covalent, electronically coupled interaction between the HydF [4Fe–4S] cluster and the [2Fe] precursor. Boltz‐2 structure predictions suggest that the cubane organizes lipoate‐dependent Hmet chemistry, positioning intermediates for assembly of the CH2–NH–CH2 bridge during H‐cluster biosynthesis.
Giorgio Caserta +6 more
wiley +2 more sources
Journal of the American Chemical Society, 2017 [FeFe]-hydrogenases catalyze the reversible reduction of protons to molecular hydrogen with extremely high efficiency. The active site (“H-cluster”) consists of a [4Fe–4S]H cluster linked through a bridging cysteine to a [2Fe]H subsite coordinated by CN−
E. Reijerse +11 more
semanticscholar +1 more source
New perspectives in hydrogenase direct electrochemistry
, 2017 International audienceElectrochemical studies of hydrogenases, the biological catalysts of H 2 oxidation and production, have proven wrong the old saying that enzymes do not easily transfer electrons to electrodes in the absence of mediators.
Matteo Sensi +4 more
semanticscholar +2 more sources
Dual Activation of H2 and CO2 by a Pincer‐Type Ni–Zn Heterobimetallic Complex
Angewandte Chemie, EarlyView.A bimetallic Ni−Zn complex performs sequential activations of H2 (1 equiv) and CO2 (2 equiv). This bimetallic cooperativity is attributed to the weak Lewis acidic nature of Zn(II), which promotes fluxional ligand binding. Namely, an X‐type ligand at Ni, where X is hydride or formate, toggles between two different binding modes: bridging Zn(μ‐X)Ni and ...
Krishnendu Dey +3 more
wiley +2 more sources
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
doaj +1 more source
A catalytically active [Mn]-hydrogenase incorporating a non-native metal cofactor
Nature Chemistry, 2019 Nature carefully selects specific metal ions for incorporation into the enzymes that catalyse the chemical reactions necessary for life. Hydrogenases, enzymes that activate molecular H2, exclusively utilize Ni and Fe in [NiFe]-, [FeFe]- and [Fe ...
Hui‐Jie Pan +6 more
semanticscholar +1 more source
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
doaj +1 more source
, 2021 Controlled formation of catalytically-relevant states within crystals of complex metalloenzymes represents a significant challenge to structure-function studies. Here we show how electrochemical control over single crystals of [NiFe] hydrogenase 1 (Hyd1)
Kendall-Price, Sophie E. T. +17 more
core +1 more source
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
doaj +1 more source