HMM Summary Page: TIGR01284
| Accession | TIGR01284 |
| Name | alt_nitrog_alph |
| Function | nitrogenase alpha chain |
| Trusted Cutoff | 512.80 |
| Domain Trusted Cutoff | 512.80 |
| Noise Cutoff | 392.75 |
| Domain Noise Cutoff | 392.75 |
| Isology Type | subfamily |
| EC Number | 1.18.6.1 |
| HMM Length | 457 |
| Mainrole Category | Central intermediary metabolism |
| Subrole Category | Nitrogen fixation |
| Author | Haft DH |
| Entry Date | Jun 22 2001 2:09PM |
| Last Modified | Feb 14 2011 3:27PM |
| Comment | This model represents the alpha chains of various forms of the nitrogen-fixing enzyme nitrogenase: vanadium-iron, iron-iron, and molybdenum-iron. Most examples of NifD, the molybdenum-iron type nitrogenase alpha chain, are excluded from this model and described instead by equivalog model TIGR01282. It appears by phylogenetic and UPGMA trees that this model represents a distinct clade of NifD homologs, in which arose several molybdenum-independent forms. |