Difference between revisions of "SigM"

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==Reviews==
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==The [[SigM regulon]]==
 
==The [[SigM regulon]]==
 
<pubmed>18179421,17675383,17434969,</pubmed>
 
<pubmed>18179421,17675383,17434969,</pubmed>

Revision as of 07:04, 13 June 2014

Gene name sigM
Synonyms yhdM
Essential no
Product RNA polymerase ECF-type sigma factor SigM
Function responsible for intrinsic resistance against beta-lactam antibiotics
Gene expression levels in SubtiExpress: sigM
Interactions involving this protein in SubtInteract: SigM
MW, pI 19 kDa, 6.77
Gene length, protein length 489 bp, 163 aa
Immediate neighbours yhdL, yhdN
Sequences Protein DNA DNA_with_flanks
Genetic context
SigM context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
SigM expression.png















Categories containing this gene/protein

transcription, sigma factors and their control, cell envelope stress proteins (controlled by SigM, V, W, X, Y), resistance against toxins/ antibiotics

This gene is a member of the following regulons

SigM regulon

The SigM regulon

The gene

Basic information

  • Locus tag: BSU09520

Phenotypes of a mutant

  • SigM is essential for growth and survival in nutrient broth (NB) containing 1.4 M NaCl PubMed
  • sigM mutants form aberrantly shaped cells, which swell and lyse spontaneously during growth in NB medium containing increased levels (0.35-0.7 M) of a wide range of different salts PubMed
  • increased sensitivity towards beta-lactam antibiotics PubMed

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
  • Protein family: sigma-70 factor 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:
    • expression of CsbB in the absence of YfhO causes constitutive activation of SigM PubMed
    • shortage of available bactoprenol causes SigM activation PubMed

Database entries

  • Structure:
  • KEGG entry: [3]
  • E.C. number:

Additional information

Expression and regulation

  • Regulatory mechanism:
  • Additional information:
    • expression of CsbB in the absence of YfhO causes constitutive activation of SigM PubMed
    • shortage of available bactoprenol causes SigM activation PubMed

Biological materials

  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

John Helmann, Cornell University, USA Homepage

Your additional remarks

References

Reviews

Bianca Mendes Souza, Thiago Luiz de Paula Castro, Rodrigo Dias de Oliveira Carvalho, Nubia Seyffert, Artur Silva, Anderson Miyoshi, Vasco Azevedo
σ(ECF) factors of gram-positive bacteria: a focus on Bacillus subtilis and the CMNR group.
Virulence: 2014, 5(5);587-600
[PubMed:24921931] [WorldCat.org] [DOI] (I p)

The SigM regulon

Warawan Eiamphungporn, John D Helmann
The Bacillus subtilis sigma(M) regulon and its contribution to cell envelope stress responses.
Mol Microbiol: 2008, 67(4);830-48
[PubMed:18179421] [WorldCat.org] [DOI] (P p)

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)

Adrian J Jervis, Penny D Thackray, Chris W Houston, Malcolm J Horsburgh, Anne Moir
SigM-responsive genes of Bacillus subtilis and their promoters.
J Bacteriol: 2007, 189(12);4534-8
[PubMed:17434969] [WorldCat.org] [DOI] (P p)

Other original publications