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Any macromolecular complex composed of two or more polypeptide subunits, which may or may not be identical. Protein complexes may have other associated non-protein prosthetic groups, such as nucleotides, metal ions or other small molecules. Any constituent part of the living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm. An enzyme complex containing a molybdenum-iron cluster found in many species. It is composed of two proteins, dinitrogenase and nitrogenase reductase; dinitrogenase, the molybdenum-iron protein, is tetrameric with an alpha2-beta2 structure, and nitrogenase reductase is a homodimer. An enzyme complex composed of two proteins, dinitrogenase and nitrogenase reductase; dinitrogenase is tetrameric with an alpha2-beta2 structure and nitrogenase reductase is a homodimer, and both are associated with metal ions, which differ between species. Both proteins are required for the enzyme activity of the complex, the formation of oxidized ferredoxin and ammonia from reduced ferredoxin and nitrogen.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: molybdenum-iron nitrogenase complex
Acc: GO:0016612
Aspect: Cellular Component
Desc: An enzyme complex containing a molybdenum-iron cluster found in many species. It is composed of two proteins, dinitrogenase and nitrogenase reductase; dinitrogenase, the molybdenum-iron protein, is tetrameric with an alpha2-beta2 structure, and nitrogenase reductase is a homodimer.
Synonyms:
  • molybdenum-iron nitrogenase activity
Proteins in PDR annotated with:
   This term: 7 [Search]
   Term or descendants: 7 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0016612 - molybdenum-iron nitrogenase complex (interactive image map)
YRC Informatics Platform - Version 3.0
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