SlrR

• Description: transcriptional activator of competence development and sporulation genes, represses SigD-dependent flagellar genes, antagonist of SlrA
  
  

Gene name	slrR
Synonyms	yveJ, slr
Essential	no
Product	transcription regulator, SlrA antagonist
Function	regulation of initiation of biofilm formation
MW, pI	17 kDa, 9.63
Gene length, protein length	456 bp, 152 aa
Immediate neighbours	epsA, pnbA
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU34380

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: binding and concomintant inactivation of SlrA results in release of SinR from the SinR-SrlA complex and subsequent induction of SinR-controlled genes and operons for biofilm formation PubMed

• Protein family:

• Paralogous protein(s): SinR

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions: SlrA-SlrR PubMed

• Localization:

Database entries

• Structure:

• UniProt: P71049

• KEGG entry: [2]

• E.C. number:

Expression and regulation

• Operon:

• Sigma factor:

• Regulation:

• Regulatory mechanism:
  • Abh: transcription activation PubMed
  • SinR: transcription repression PubMed

• Additional information:
  • induction by sequestration of SinR by SinI or SrlA PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Yunrong Chai, Roberto Kolter, Richard Losick
Paralogous antirepressors acting on the master regulator for biofilm formation in Bacillus subtilis.
Mol Microbiol: 2009, 74(4);876-87
[PubMed:19788541] [WorldCat.org] [DOI] (I p)

Ewan J Murray, Mark A Strauch, Nicola R Stanley-Wall
SigmaX is involved in controlling Bacillus subtilis biofilm architecture through the AbrB homologue Abh.
J Bacteriol: 2009, 191(22);6822-32
[PubMed:19767430] [WorldCat.org] [DOI] (I p)

Kazuo Kobayashi
SlrR/SlrA controls the initiation of biofilm formation in Bacillus subtilis.
Mol Microbiol: 2008, 69(6);1399-410
[PubMed:18647168] [WorldCat.org] [DOI] (I p)

Frances Chu, Daniel B Kearns, Anna McLoon, Yunrong Chai, Roberto Kolter, Richard Losick
A novel regulatory protein governing biofilm formation in Bacillus subtilis.
Mol Microbiol: 2008, 68(5);1117-27
[PubMed:18430133] [WorldCat.org] [DOI] (I p)