Accession | TIGR02000 |
Name | NifU_proper |
Function | Fe-S cluster assembly protein NifU |
Gene Symbol | nifU |
Trusted Cutoff | 273.30 |
Domain Trusted Cutoff | 273.30 |
Noise Cutoff | 167.90 |
Domain Noise Cutoff | 167.90 |
Isology Type | equivalog |
HMM Length | 290 |
Mainrole Category | Biosynthesis of cofactors, prosthetic groups, and carriers |
Subrole Category | Other |
Gene Ontology Term | GO:0005198: structural molecule activity molecular_function |
| GO:0009399: nitrogen fixation biological_process |
| GO:0016226: iron-sulfur cluster assembly biological_process |
Author | Haft DH |
Entry Date | Sep 29 2003 5:09PM |
Last Modified | Feb 14 2011 3:27PM |
Comment | Three different but partially homologous Fe-S cluster assembly systems have been described: Isc, Suf, and Nif. The latter is associated with donation of an Fe-S cluster to nitrogenase in a number of nitrogen-fixing species. NifU, described here, consists of an N-terminal domain (PF01592) and a C-terminal domain (PF01106). Homologs with an equivalent domain archictecture from Helicobacter and Campylobacter, however, are excluded from this model by a high trusted cutoff. The model, therefore, is specific for NifU involved in nitrogenase maturation. The related model TIGR01999 homologous to the N-terminus of this model describes IscU from the Isc system as in E. coli, Saccharomyces cerevisiae, and Homo sapiens. |
Genome Property | GenProp0742: iron-sulfur cluster assembly NIF system (HMM) |