SinI

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  • Description: antagonist of SinR, drives SlrR from the SlrR(LOW) to the SlrR(HIGH) state

Gene name sinI
Synonyms
Essential no
Product antagonist of SinR
Function control of biofilm formation
Interactions involving this protein in SubtInteract: SinI
Regulation of this protein in SubtiPathways:
Biofilm
MW, pI 6 kDa, 6.333
Gene length, protein length 171 bp, 57 aa
Immediate neighbours yqhG, sinR
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
SinI context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
SinI expression.png




























Categories containing this gene/protein

transcription factors and their control, transition state regulators, biofilm formation

This gene is a member of the following regulons

AbrB regulon, ScoC regulon, Spo0A regulon

The gene

Basic information

  • Locus tag: BSU24600

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
  • Protein family:
  • Paralogous protein(s): SlrA

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • KEGG entry: [3]
  • E.C. number:

Additional information

Expression and regulation

  • Regulation:
    • activated under conditions that trigger sporulation by (Spo0A) interaction PubMed,PubMed
    • repressed during exponential growth (ScoC) PubMed
    • repressed during logrithmic growth (AbrB) PubMed
    • repressed during vegetative growth (SinR) PubMed
  • Additional information:
    • the mRNA is substantially stabilized upon depletion of RNase Y PubMed

Biological materials

  • Mutant:
    • GP959 (spc), available in Stülke lab
    • DS91 (spc) NCIB3610 derivate, available in Stülke lab
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Stülke lab
  • FLAG-tag construct (C-term): GP935 (kan), available in Stülke lab
  • Antibody:

Labs working on this gene/ protein

Your additional remarks

References

Reviews

Patrick Piggot
Epigenetic switching: bacteria hedge bets about staying or moving.
Curr Biol: 2010, 20(11);R480-2
[PubMed:20541494] [WorldCat.org] [DOI] (I p)

Modelling of the SinI/SinR switch

Jennifer S Hallinan, Goksel Misirli, Anil Wipat
Evolutionary computation for the design of a stochastic switch for synthetic genetic circuits.
Annu Int Conf IEEE Eng Med Biol Soc: 2010, 2010;768-74
[PubMed:21095906] [WorldCat.org] [DOI] (P p)

Original publications

Additonal publications: PubMed

Lehnik-Habrink M, Schaffer M, Mäder U, Diethmaier C, Herzberg C, Stülke J  
RNA processing in Bacillus subtilis: identification of targets of the essential RNase Y. 
Mol Microbiol. 2011 81(6): 1459-1473. 
PubMed:21815947

Yunrong Chai, Roberto Kolter, Richard Losick
Reversal of an epigenetic switch governing cell chaining in Bacillus subtilis by protein instability.
Mol Microbiol: 2010, 78(1);218-29
[PubMed:20923420] [WorldCat.org] [DOI] (I p)

Yunrong Chai, Frances Chu, Roberto Kolter, Richard Losick
Bistability and biofilm formation in Bacillus subtilis.
Mol Microbiol: 2008, 67(2);254-63
[PubMed:18047568] [WorldCat.org] [DOI] (P p)

Daniel B Kearns, Frances Chu, Steven S Branda, Roberto Kolter, Richard Losick
A master regulator for biofilm formation by Bacillus subtilis.
Mol Microbiol: 2005, 55(3);739-49
[PubMed:15661000] [WorldCat.org] [DOI] (P p)

Alejandro Sánchez, Jorge Olmos
Bacillus subtilis transcriptional regulators interaction.
Biotechnol Lett: 2004, 26(5);403-7
[PubMed:15104138] [WorldCat.org] [DOI] (P p)

Sasha H Shafikhani, Ines Mandic-Mulec, Mark A Strauch, Issar Smith, Terrance Leighton
Postexponential regulation of sin operon expression in Bacillus subtilis.
J Bacteriol: 2002, 184(2);564-71
[PubMed:11751836] [WorldCat.org] [DOI] (P p)

D J Scott, S Leejeerajumnean, J A Brannigan, R J Lewis, A J Wilkinson, J G Hoggett
Quaternary re-arrangement analysed by spectral enhancement: the interaction of a sporulation repressor with its antagonist.
J Mol Biol: 1999, 293(5);997-1004
[PubMed:10547280] [WorldCat.org] [DOI] (P p)

R J Lewis, J A Brannigan, W A Offen, I Smith, A J Wilkinson
An evolutionary link between sporulation and prophage induction in the structure of a repressor:anti-repressor complex.
J Mol Biol: 1998, 283(5);907-12
[PubMed:9799632] [WorldCat.org] [DOI] (P p)

M A Strauch
In vitro binding affinity of the Bacillus subtilis AbrB protein to six different DNA target regions.
J Bacteriol: 1995, 177(15);4532-6
[PubMed:7635837] [WorldCat.org] [DOI] (P p)

U Bai, I Mandic-Mulec, I Smith
SinI modulates the activity of SinR, a developmental switch protein of Bacillus subtilis, by protein-protein interaction.
Genes Dev: 1993, 7(1);139-48
[PubMed:8422983] [WorldCat.org] [DOI] (P p)

P T Kallio, J E Fagelson, J A Hoch, M A Strauch
The transition state regulator Hpr of Bacillus subtilis is a DNA-binding protein.
J Biol Chem: 1991, 266(20);13411-7
[PubMed:1906467] [WorldCat.org] (P p)

N K Gaur, K Cabane, I Smith
Structure and expression of the Bacillus subtilis sin operon.
J Bacteriol: 1988, 170(3);1046-53
[PubMed:3125149] [WorldCat.org] [DOI] (P p)