Back نيتروجيناز Arabic Nitrogenasa Catalan Nitrogenáza Czech Nitrogenase German Nitrogenazo Esperanto Nitrogenasa Spanish Nitrogenasa Basque نیتروژناز Persian Nitrogenaasi Finnish Nitrogénase French
| Nitrogenase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 | |||||||||
| Identifiers | |||||||||
| EC no. | 1.18.6.1 | ||||||||
| CAS no. | 9013-04-1 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
| Nitrogenase-type Oxidoreductase (component 1 subunit alpha/beta) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| Symbol | Oxidored_nitro | ||||||||
| Pfam | PF00148 | ||||||||
| InterPro | IPR000510 | ||||||||
| SCOP2 | 1mio / SCOPe / SUPFAM | ||||||||
| |||||||||
| Nitrogenase iron protein NifH (component 2) | |
|---|---|
| Identifiers | |
| Symbol | NifH |
| InterPro | IPR005977 |
| CATH | 1fp6 |
| SCOP2 | d1fp6a_ / SCOPe / SUPFAM |
| CDD | cd02040 |
| Alternative nitrogenase (component 1) delta subunit | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| Symbol | AnfG_VnfG | ||||||||
| Pfam | PF03139 | ||||||||
| InterPro | IPR004349 | ||||||||
| |||||||||
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. These enzymes are responsible for the reduction of nitrogen (N2) to ammonia (NH3). Nitrogenases are the only family of enzymes known to catalyze this reaction, which is a step in the process of nitrogen fixation. Nitrogen fixation is required for all forms of life, with nitrogen being essential for the biosynthesis of molecules (nucleotides, amino acids) that create plants, animals and other organisms. They are encoded by the Nif genes or homologs. They are related to protochlorophyllide reductase.
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