1.18.6.1: nitrogenase
This is an abbreviated version!
For detailed information about nitrogenase, go to the full flat file.
Word Map on EC 1.18.6.1
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1.18.6.1
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nodule
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azotobacter
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nitrogen-fixing
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vinelandii
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diazotrophic
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acetylene
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symbiotic
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klebsiella
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ammonia
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pneumoniae
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cyanobacterium
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rhizobium
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anabaena
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heterocysts
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nitrate
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legume
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n2-fixing
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bacteroid
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hydrogenase
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epr
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free-living
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atmospheric
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nh3
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rubrum
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bradyrhizobium
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azospirillum
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rhodospirillum
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japonicum
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rhodobacter
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meliloti
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rhizosphere
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nostoc
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capsulatus
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pasteurianum
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brasilense
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microaerobic
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rhodopseudomonas
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leguminosarum
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leghemoglobin
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variabilis
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mgadp
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carbide
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dithionite-reduced
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endor
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biofertilizer
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flavodoxins
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drag
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symbioses
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bacteriochlorophyll
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synthesis
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agriculture
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energy production
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anoxygenic
- 1.18.6.1
- nodule
- azotobacter
-
nitrogen-fixing
- vinelandii
-
diazotrophic
- acetylene
-
symbiotic
- klebsiella
- ammonia
- pneumoniae
- cyanobacterium
- rhizobium
- anabaena
- heterocysts
- nitrate
-
legume
-
n2-fixing
-
bacteroid
- hydrogenase
- epr
-
free-living
-
atmospheric
- nh3
- rubrum
- bradyrhizobium
- azospirillum
- rhodospirillum
- japonicum
- rhodobacter
- meliloti
-
rhizosphere
- nostoc
- capsulatus
- pasteurianum
- brasilense
-
microaerobic
- rhodopseudomonas
- leguminosarum
- leghemoglobin
- variabilis
- mgadp
-
carbide
-
dithionite-reduced
-
endor
-
biofertilizer
- flavodoxins
-
drag
-
symbioses
- bacteriochlorophyll
- synthesis
- agriculture
- energy production
-
anoxygenic
Reaction
4 reduced ferredoxin
+
8 H+
+
Synonyms
ARA, dinitrogenase, EC 1.18.2.1, Kp2, Mo nitrogenase, Mo-dependent nitrogenase, Mo-Fe nitrogenase, Mo-nitrogenase, MoFe protein, MoFe-protein, molybdenum nitrogenase, molybdenum-containing nitrogenase, molybdenum-iron protein, molybdenum-nitrogenase, More, N2ase, nif, nif1, nif2, nifD, NifDK, NifH, NifH2, nifHDK, nifK, nifM, nitrogenase Fe protein, nitrogenase Fe-protein, nitrogenase FeVco, nitrogenase iron-protein, nitrogenase MoFe protein, nitrogenase MoFe-protein, nitrogenase molybdenum iron protein, nitrogenase molybdenum-iron protein, V-nitrogenase, vanadium nitrogenase, vanadium-nitrogenase, VnfDGK, VnfH
ECTree
1.18.6.1 nitrogenaseAdvanced search results
results (
results (Molecular Weight
Molecular Weight on EC 1.18.6.1 - nitrogenase
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MOLECULAR WEIGHT 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
13500
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FeFe protein of iron-only enzyme: 2 * 59000 + 2 * 51000 + 2 * 13500, alpha2beta2gamma2, SDS-PAGE
160000
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MoFe protein, estimation from Mo content, ultracentrifugation
160000 - 270000
200000
200000 - 250000
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tungsten-substituted enzyme component, gel filtration
216000
220000
220000 - 250000
230000
27500
33500
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MoFe protein 1 * 55000 + 1 * 59000 + Fe protein 2 * 33500, SDS-PAGE
40000 - 74000
46000
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NafY protein, gel filtration, sedimentation equilibrium centrifugation
51000
55000
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MoFe protein 1 * 55000 + 1 * 59000 + Fe protein 2 * 33500, SDS-PAGE
55000 - 60000
59000
60000
63000
64000
additional information
27500
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component I Fe protein 2 * 27500 + component II MoFe protein 1 * 60000 + 1 * 51000, SDS-PAGE
51000
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component I Fe protein 2 * 27500 + component II MoFe protein 1 * 60000 + 1 * 51000, SDS-PAGE
51000
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FeFe protein of iron-only enzyme: 2 * 59000 + 2 * 51000 + 2 * 13500, alpha2beta2gamma2, SDS-PAGE
59000
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MoFe protein 1 * 55000 + 1 * 59000 + Fe protein 2 * 33500, SDS-PAGE
59000
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FeFe protein of iron-only enzyme: 2 * 59000 + 2 * 51000 + 2 * 13500, alpha2beta2gamma2, SDS-PAGE
60000
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component I Fe protein 2 * 27500 + component II MoFe protein 1 * 60000 + 1 * 51000, SDS-PAGE
additional information
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enzyme consists of 2 proteins: a molybdenum and iron-containing protein, MoFe protein, component I, dinitrogenase, and an iron containing protein, Fe protein, component II, dinitrogenase reductase, together they form the active nitrogenase complex
additional information
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enzyme consists of 2 proteins: a molybdenum and iron-containing protein, MoFe protein, component I, dinitrogenase, and an iron containing protein, Fe protein, component II, dinitrogenase reductase, together they form the active nitrogenase complex
additional information
-
enzyme consists of 2 proteins: a molybdenum and iron-containing protein, MoFe protein, component I, dinitrogenase, and an iron containing protein, Fe protein, component II, dinitrogenase reductase, together they form the active nitrogenase complex
additional information
-
enzyme consists of 2 proteins: a molybdenum and iron-containing protein, MoFe protein, component I, dinitrogenase, and an iron containing protein, Fe protein, component II, dinitrogenase reductase, together they form the active nitrogenase complex
additional information
-
enzyme consists of 2 proteins: a molybdenum and iron-containing protein, MoFe protein, component I, dinitrogenase, and an iron containing protein, Fe protein, component II, dinitrogenase reductase, together they form the active nitrogenase complex
additional information
-
enzyme consists of 2 proteins: a molybdenum and iron-containing protein, MoFe protein, component I, dinitrogenase, and an iron containing protein, Fe protein, component II, dinitrogenase reductase, together they form the active nitrogenase complex
additional information
-
the nitrogenase activity is resolved into two components. The component 1 has a molecular size of approximately 250 kDa, as estimated by gel filtration, and sodium dodecyl sulfate-polyacrylamide gels reveals two predominant bands with molecular sizes near 57000 and 62000 Da, consistent with an alpha2beta2 tetramer as in eubacterial component 1 proteins. For the component 2 a molecular size of approximately 120000 Da is estimated by gel filtration, with a subunit molecular size near 31000 Da, indicating that the component 2 protein is a tetramer
