HMM Summary Page: TIGR02895
| Accession | TIGR02895 |
| Name | spore_sigI |
| Function | RNA polymerase sigma-I factor |
| Gene Symbol | sigI |
| Trusted Cutoff | 185.00 |
| Domain Trusted Cutoff | 185.00 |
| Noise Cutoff | 81.55 |
| Domain Noise Cutoff | 81.55 |
| Isology Type | equivalog |
| HMM Length | 219 |
| Mainrole Category | Transcription |
| Subrole Category | Transcription factors |
| Gene Ontology Term | GO:0006352: transcription initiation, DNA-dependent biological_process |
| GO:0016987: sigma factor activity molecular_function | |
| Author | Haft DH |
| Entry Date | Mar 15 2006 1:40PM |
| Last Modified | Feb 14 2011 3:27PM |
| Comment | Members of this sigma factor protein family are strictly limited to endospore-forming species in the Firmicutes lineage of bacteria, but are not universally present among such species. Sigma-I was shown to be induced by heat shock (PMID:11157964) in Bacillus subtilis and is suggested by its phylogenetic profile to be connected to the program of sporulation (PMID:16311624). |
| References | RN [1] RM 11157964 RT Putative sigma factor SigI (YkoZ) of Bacillus subtilis is induced by heat shock. RA Zuber U, Drzewiecki K, Hecker M. RL J Bacteriol. 2001 Feb;183(4):1472-5. RN [2] RM 16311624 RT Life in Hot Carbon Monoxide: The Complete Genome Sequence of Carboxydothermus hydrogenoformans Z-2901. RA Wu M, Ren Q, Durkin AS, Daugherty SC, Brinkac LM, Dodson RJ, Madupu R, Sullivan SA, Kolonay JF, Nelson WC, Tallon LJ, Jones KM, Ulrich LE, Gonzalez JM, Zhulin IB, Robb FT, Eisen JA. RL PLoS Genet. 2005 Nov 25;1(5):e65 |
| Genome Property | GenProp0610: endospore formation marker gene set (HMM) |