SigW
- Description: RNA polymerase ECF-type sigma factor SigW, activated by alkaline shock and by polymyxin B, vancomycin, cephalosporin C, D-cycloserine, and triton X-100
| Gene name | sigW |
| Synonyms | ybbL |
| Essential | no |
| Product | RNA polymerase ECF-type sigma factor SigW |
| Function | resistance against SdpC that functions in detoxification and/or production of antimicrobial compounds |
| Interactions involving this protein in SubtInteract: SigW | |
| MW, pI | 21 kDa, 8.614 |
| Gene length, protein length | 561 bp, 187 aa |
| Immediate neighbours | trnSL-Gln2, ybbM |
| Get the DNA and protein sequences (Barbe et al., 2009) | |
Genetic context 
This image was kindly provided by SubtiList
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Contents
Categories containing this gene/protein
transcription, sigma factors and their control, cell envelope stress proteins (controlled by SigM, V, W, X, Y)
This gene is a member of the following regulons
The SigW regulon
The gene
Basic information
- Locus tag: BSU01730
Phenotypes of a mutant
- sensitive to ß-lactam antibiotics such as cefuroxime and to fosfomycin PubMed
- Inactivation of alsR, sigD and sigW increases competitive fitness of Bacillus subtilis under non-sporulating conditions PubMed
Database entries
- DBTBS entry: [1]
- SubtiList entry: [2]
Additional information
- A mutation was found in this gene after evolution under relaxed selection for sporulation PubMed
The protein
Basic information/ Evolution
- Catalyzed reaction/ biological activity:
- Protein family: ECF subfamily (according to Swiss-Prot)
- Paralogous protein(s):
Extended information on the protein
- Kinetic information:
- Domains:
- Modification:
- Cofactor(s):
- Effectors of protein activity: RsiW acts as antagonist of SigW (anti-SigW)
Database entries
- Structure:
- UniProt: Q45585
- KEGG entry: [3]
- E.C. number:
Additional information
Expression and regulation
- Regulation:
- Additional information:
Biological materials
- Mutant:
- Expression vector:
- lacZ fusion:
- GFP fusion:
- two-hybrid system:
- Antibody:
Labs working on this gene/protein
John Helmann, Cornell University, USA Homepage
Thomas Wiegert, University of Bayreuth, Germany Homepage
Your additional remarks
References
Reviews
Additional reviews: PubMed
The SigW regulon
Thorsten Mascher, Anna-Barbara Hachmann, John D Helmann
Regulatory overlap and functional redundancy among Bacillus subtilis extracytoplasmic function sigma factors.
J Bacteriol: 2007, 189(19);6919-27
[PubMed:17675383]
[WorldCat.org]
[DOI]
(P p)
Bronwyn G Butcher, John D Helmann
Identification of Bacillus subtilis sigma-dependent genes that provide intrinsic resistance to antimicrobial compounds produced by Bacilli.
Mol Microbiol: 2006, 60(3);765-82
[PubMed:16629676]
[WorldCat.org]
[DOI]
(P p)
Min Cao, Phil A Kobel, Maud M Morshedi, Ming Fang Winston Wu, Chris Paddon, John D Helmann
Defining the Bacillus subtilis sigma(W) regulon: a comparative analysis of promoter consensus search, run-off transcription/macroarray analysis (ROMA), and transcriptional profiling approaches.
J Mol Biol: 2002, 316(3);443-57
[PubMed:11866510]
[WorldCat.org]
[DOI]
(P p)
M S Turner, J D Helmann
Mutations in multidrug efflux homologs, sugar isomerases, and antimicrobial biosynthesis genes differentially elevate activity of the sigma(X) and sigma(W) factors in Bacillus subtilis.
J Bacteriol: 2000, 182(18);5202-10
[PubMed:10960106]
[WorldCat.org]
[DOI]
(P p)
X Huang, A Gaballa, M Cao, J D Helmann
Identification of target promoters for the Bacillus subtilis extracytoplasmic function sigma factor, sigma W.
Mol Microbiol: 1999, 31(1);361-71
[PubMed:9987136]
[WorldCat.org]
[DOI]
(P p)
X Huang, K L Fredrick, J D Helmann
Promoter recognition by Bacillus subtilis sigmaW: autoregulation and partial overlap with the sigmaX regulon.
J Bacteriol: 1998, 180(15);3765-70
[PubMed:9683469]
[WorldCat.org]
[DOI]
(P p)
Other original publications
Additional original publications: PubMed
