Results 21 to 30 of about 42,432 (227)

Probing the Structure of [NiFeSe] Hydrogenase with QM/MM Computations [PDF]

open access: yes, 2020
The geometry and vibrational behavior of selenocysteine [NiFeSe] hydrogenase isolated from Desulfovibrio vulgaris Hildenborough have been investigated using a hybrid quantum mechanical (QM)/ molecular mechanical (MM) approach. Structural models have been
Elghobashi-Meinhardt, Nadia Said   +3 more
core   +1 more source

Host-Dependent Expression of Rhizobium leguminosarum bv. viciae Hydrogenase Is Controlled at Transcriptional and Post-Transcriptional Levels in Legume Nodules

open access: yesMolecular Plant-Microbe Interactions, 2008
The legume host affects the expression of Rhizobium leguminosarum hydrogenase activity in root nodules. High levels of symbiotic hydrogenase activity were detected in R.
Belén Brito   +5 more
doaj   +1 more source

Inhibition of hydrogen uptake in Escherichia coli by expressing the hydrogenase from the cyanobacterium Synechocystis sp. PCC 6803

open access: yesBMC Biotechnology, 2007
Background Molecular hydrogen is an environmentally-clean fuel and the reversible (bi-directional) hydrogenase of the cyanobacterium Synechocystis sp.
Wood Thomas K   +3 more
doaj   +1 more source

Metagenomic sequencing unravels gene fragments with phylogenetic signatures of O2-tolerant NiFe membrane-bound hydrogenases in lacustrine sediment [PDF]

open access: yes, 2015
Many promising hydrogen technologies utilising hydrogenase enzymes have been slowed by the fact that most hydrogenases are extremely sensitive to O2. Within the group 1 membrane-bound NiFe hydrogenase, naturally occurring tolerant enzymes do exist, and ...
Couto, Jillian M.   +4 more
core   +1 more source

[NiFeSe]-Hydrogenase Chemistry [PDF]

open access: yesAccounts of Chemical Research, 2015
The development of technology for the inexpensive generation of the renewable energy vector H2 through water splitting is of immediate economic, ecological, and humanitarian interest. Recent interest in hydrogenases has been fueled by their exceptionally high catalytic rates for H2 production at a marginal overpotential, which is presently only matched
Wombwell, Claire   +2 more
openaire   +2 more sources

Heterologous expression of Alteromonas macleodii and Thiocapsa roseopersicina [NiFe] hydrogenases in Synechococcus elongatus. [PDF]

open access: yesPLoS ONE, 2011
Oxygen-tolerant [NiFe] hydrogenases may be used in future photobiological hydrogen production systems once the enzymes can be heterologously expressed in host organisms of interest.
Philip D Weyman   +6 more
doaj   +1 more source

Crystal structure of NiFe(CO)5[tris(pyridyl-meth-yl)aza-phosphatrane]: a synthetic mimic of the NiFe hydrogenase active site incorporating a pendant pyridine base. [PDF]

open access: yes, 2019
The reaction of Ni(TPAP)(COD) {where TPAP = [(NC5H4)CH2]3P(NC2H4)3N} with Fe(CO)5 resulted in the isolation of the title heterobimetallic NiFe(TPAP)(CO)5 complex di-μ-carbonyl-tricarbon-yl[2,8,9-tris-(pyridin-2-yl-meth-yl)-2,5,8,9-tetra-aza-1-phosphabi ...
Sutthirat, Natwara   +3 more
core   +1 more source

Heterologous expression and maturation of an NADP-dependent [NiFe]-hydrogenase: a key enzyme in biofuel production. [PDF]

open access: yesPLoS ONE, 2010
Hydrogen gas is a major biofuel and is metabolized by a wide range of microorganisms. Microbial hydrogen production is catalyzed by hydrogenase, an extremely complex, air-sensitive enzyme that utilizes a binuclear nickel-iron [NiFe] catalytic site ...
Junsong Sun   +4 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

Integration of an [FeFe]-hydrogenase into the anaerobic metabolism of Escherichia coli

open access: yesBiotechnology Reports, 2015
Biohydrogen is a potentially useful product of microbial energy metabolism. One approach to engineering biohydrogen production in bacteria is the production of non-native hydrogenase activity in a host cell, for example Escherichia coli. In some microbes,
Ciarán L. Kelly   +6 more
doaj   +1 more source

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