Nitrogenases are enzymes (EC 1.18.6.1EC 1.19.6.1) that are produced by certain bacteria, such as cyanobacteria (blue-green bacteria) and rhizobacteria...

Biological nitrogen fixation or diazotrophy is catalyzed by enzymes called nitrogenases. These enzyme complexes are encoded by the Nif genes (or Nif homologs)...

Vanadium nitrogenase is a key enzyme for nitrogen fixation found in nitrogen-fixing bacteria, and is used as an alternative to molybdenum nitrogenase when...

FeMoco (FeMo cofactor) is the primary cofactor of nitrogenase. Nitrogenase is the enzyme that catalyzes the conversion of atmospheric nitrogen molecules...

that of Mo-Fe nitrogenase. An important role in maturation of Mo-Fe nitrogenase plays the so-called P-cluster. Synthesis of nitrogenase is controlled...

the air using the enzyme nitrogenase, in order to provide the cells in the filament with nitrogen for biosynthesis. Nitrogenase is inactivated by oxygen...

Nitrogenase (flavodoxin) (EC 1.19.6.1) is an enzyme with systematic name reduced flavodoxin:dinitrogen oxidoreductase (ATP-hydrolysing). This enzyme catalyses...

vitamins in soils. It produces fluorescent pyoverdine pigments. The nitrogenase holoenzyme of A. vinelandii has been characterised by X-ray crystallography...

to identify the central carbon atom in FeMo cofactor of Nitrogenase (see section Nitrogenase). The DeBeer group is actively involved in the development...

require additional metals as enzyme cofactors, such as vanadium in the nitrogenase of the nitrogen-fixing bacteria of the genus Azotobacter, tungsten in...

living organisms. The primary enzyme encoded by the nif genes is the nitrogenase complex which is in charge of converting atmospheric nitrogen (N2) to...

is a component in most nitrogenases. Among molybdoenzymes, nitrogenases are unique in lacking the molybdopterin. Nitrogenases catalyze the production...

an essential element in most organisms. It is most notably present in nitrogenase which is an essential part of nitrogen fixation. Molybdenum is an essential...

also a nitrogen fixing bacterium, i.e., it can express and regulate nitrogenase, a protein complex that can catalyse the conversion of atmospheric dinitrogen...

1970s, ferredoxin was demonstrated to contain Fe4S4 clusters and later nitrogenase was shown to contain a distinctive MoFe7S9 active site. The Fe-S clusters...

nitrogen-fixing microorganisms detected in oligotrophic oceans by amplification of nitrogenase (nifH) genes". Applied and Environmental Microbiology. 64 (9): 3444–3450...

Bioorganometallic enzymes and proteins include the hydrogenases, FeMoco in nitrogenase, and methylcobalamin. These naturally occurring organometallic compounds...

course must be determined separately. The image at left for catalysis by nitrogenase from Klebsiella pneumoniae illustrates both of these points: the agreement...

which serve as electron shuttles in cells. In bacteria, the important nitrogenase enzymes contain an Fe–Mo–S cluster and is a catalyst that performs the...

"Nitrogenase". Ergebnisse der Enzymforschung. 3: 23–56. Lineweaver H, Burk D, Deming, W E (1934). "The dissociation constant of nitrogen-nitrogenase in...

Azospirillum. All diazotrophs contain iron-molybdenum or iron-vanadium nitrogenase systems. Two of the most studied systems are those of Klebsiella pneumoniae...

example, diazotrophs have the ability to fix nitrogen gas using the enzyme nitrogenase. This trait, which can be found in bacteria of most metabolic types listed...

breaking the very stable triple bond between the nitrogen atoms. The nitrogenases catalyze the process. One such enzyme occurs in Rhizobium bacteria. There...

in the root nodules would reduce the activity of the oxygen-sensitive nitrogenase, which is an enzyme responsible for the fixation of atmospheric nitrogen...

in 1995. It is capable of photosynthetic hydrogen production via the nitrogenase enzyme. Hiraishi A, Urata K, Satoh T (1995). "A new genus of marine budding...

organisms, ammonia is produced from atmospheric nitrogen by enzymes called nitrogenases. The overall process is called nitrogen fixation. Intense effort has...

central metal cation, illustrate how N2 might bind to the metal(s) in nitrogenase and the catalyst for the Haber process: these processes involving dinitrogen...

pectin-degrading cell wall enzymes. The enzymes needed to reduce nitrogen, nitrogenases, require a substantial input of ATP but at the same time are sensitive...

required for life. The iron–sulfur clusters are pervasive and include nitrogenase, the enzymes responsible for biological nitrogen fixation. Iron-containing...

hydrogen (H2) given off in the nitrogen-fixing chemical reaction enabled by nitrogenase enzymes. Nitrogen is produced by bacteria, which have an endo-symbiotic...