Results 31 to 40 of about 47,392 (275)
Electron Transfer Precedes ATP Hydrolysis during Nitrogenase Catalysis [PDF]
, 2013 The biological reduction of N2 to NH3 catalyzed by Mo-dependent nitrogenase requires at least eight rounds of a complex cycle of events associated with ATP-driven electron transfer (ET) from the Fe protein to the catalytic MoFe protein, with each ET ...
Antony, Edwin +7 more
core +2 more sources
Structural evidence for a dynamic metallocofactor during N2 reduction by Mo-nitrogenase
Science, 2020 Delicate dance becomes a ballet The enzyme nitrogenase uses adenosine triphosphate and several unusual iron-sulfur cofactors to pump electrons into typically inert dinitrogen (N2), providing protons along the way.
W. Kang +4 more
semanticscholar +1 more source
Nitrogenase and homologs [PDF]
JBIC Journal of Biological Inorganic Chemistry, 2014 Nitrogenase catalyzes biological nitrogen fixation, a key step in the global nitrogen cycle. Three homologous nitrogenases have been identified to date, along with several structural and/or functional homologs of this enzyme that are involved in nitrogenase assembly, bacteriochlorophyll biosynthesis and methanogenic process, respectively.
Hu, Yilin, Ribbe, Markus W
openaire +4 more sources
Negative Cooperativity in the Nitrogenase Fe Protein Electron Delivery Cycle [PDF]
, 2016 Nitrogenase catalyzes the ATP-dependent reduction of dinitrogen (N2) to two ammonia (NH3) molecules through the participation of its two protein components, the MoFe and Fe proteins.
Antony, Edwin +11 more
core +2 more sources
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2013 Nitrogenase contains two unique metalloclusters: the P-cluster and the M-cluster. The assembly processes of P- and M-clusters are arguably the most complicated processes in bioinorganic chemistry. There is considerable interest in decoding the biosynthetic mechanisms of the P- and M-clusters, because these clusters are not only biologically important ...
Hu, Yilin, Ribbe, Markus W.
openaire +2 more sources
Contrasted Reactivity to Oxygen Tensions in Frankia sp. Strain CcI3 throughout Nitrogen Fixation and Assimilation [PDF]
, 2014 Reconciling the irreconcilable is a primary struggle in aerobic nitrogen-fixing bacteria. Although nitrogenase is oxygen and reactive oxygen species-labile, oxygen tension is required to sustain respiration.
Beauchemin, Nicholas +6 more
core +4 more sources
A two-stage, two-organism process for biohydrogen from glucose [PDF]
, 2006 H2 can potentially be produced in a two-stage biological process: the fermentation of glucose by Escherichia coli HD701 and the photofermentation of the residual medium by Rhodobacter sphaeroides O.U. 001. In a typical batch fermentation, E.
Macaskie, LE, Redwood, MD
core +1 more source
A nitrogenase-like enzyme system catalyzes methionine, ethylene, and methane biogenesis
Science, 2020 Soil sulfur metabolism surprise Soil bacteria have a range of metabolic pathways that contribute to acquiring and recycling nutrients and carbon. Curiously, some of these organisms give off ethylene gas when starved for sulfur under anaerobic conditions.
Justin A. North +12 more
semanticscholar +1 more source
Scientific Reports, 2022 Biological nitrogen fixation (BNF) is the reduction of N2 into NH3 in a group of prokaryotes by an extremely O2-sensitive protein complex called nitrogenase. Transfer of the BNF pathway directly into plants, rather than by association with microorganisms,
Lucía Payá-Tormo +11 more
doaj +1 more source
Acetylene reduction associated with zostera novazelandica Setch. and Spartina alterniflora Loisel., in Whangateau harbour, North Island, New Zealand [PDF]
, 1990 Nitrogen fixation (acetylene reduction) was investigated in Zostera novazelandica Setch. and Spartina alterniflora Loisel., in the North Island of New Zealand.
Hicks, Brendan J., Silvester, Warwick B.
core +2 more sources