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sinR [2017-07-24 09:37:36]
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sinR [2017-07-24 09:37:36]

transcriptional regulator (Xre family) of post-exponential-phase responses genes
Locus
BSU24610
Isoelectric point
7.18
Molecular weight
12.85 kDa
Protein length
111 aa Sequence Blast
Gene length
333 bp Sequence Blast
Function
control of biofilm formation
Product
transcriptional regulator (Xre family)
Essential
no
Synonyms
sin, flaD
Outlinks
KEGGBsubCycSubtiListUniProtExpression Browser

Genomic Context

      
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Categories containing this gene/protein

  • Information processing → Regulation of gene expression → Transcription factors and their control → Transcription factors/ other
  • Information processing → Regulation of gene expression → Transition state regulators
  • Lifestyles → Exponential and early post-exponential lifestyles → Biofilm formation
  • Lifestyles → Exponential and early post-exponential lifestyles → Biofilm formation → Regulation
  • Lifestyles → Exponential and early post-exponential lifestyles → Swarming

    • Gene

    Coordinates
    2,552,653 → 2,552,988

    Phenotypes of a mutant

  • the mutation suppresses the galactose toxicity to a galE mutant PubMed

    • The protein

    Catalyzed reaction/ biological activity

  • transcription regulator of biofilm genes, acts as a true repressor of the tapA-sipW-tasA operon and as an anti-activator (prevents binding of the activator protein RemA) of the epsA-epsB-epsC-epsD-epsE-epsF-epsG-epsH-epsI-epsJ-epsK-epsL-epsM-epsN-epsO operon PubMed
  • acts as co-repressor for SlrR PubMed

    • Protein family

  • Xre family

    • Paralogous protein(s)

  • SlrR

    • Domains

  • DNA-binding N-terminal domain (aa 1-69) PubMed
  • SinI-binding C-terminal domain (aa 74-111) PubMed

    • Effectors of protein activity

  • SinI and SlrA are antagonists to SinR PubMed
  • SlrR is also antagonist of SinR PubMed

    • Structure

  • 2YAL (C-terminal domain, aa 74-111) PubMed
  • 3QQ6 (N-terminal domain, aa 1-69) PubMed
  • 1B0N (complex SinR-SinI) PubMed

    • Expression and Regulation

    Operons

    Genes
    sinI-sinR
    Description
    PubMed

    Sigma factors

  • SigA: sigma factor, PubMed, in SigA regulon

    • Regulatory mechanism

  • Spo0A: activation, in a portion of cells PubMed, in Spo0A regulon
  • SinR: repression, PubMed, in SinR regulon
  • AbrB: repression, PubMed, in AbrB regulon
  • ScoC: repression, PubMed, in ScoC regulon

    • Regulation

  • repressed during exponential growth (ScoC) PubMed

    • Additional information

  • the mRNA is stabilized upon depletion of RNase Y PubMed
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    Genes
    sinR
    Description
    PubMed

    Additional information

  • the mRNA is stabilized upon depletion of RNase Y (the half-life of the mRNA increases from 3.5 to 13 min) PubMed
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    Biological materials

    Mutant

  • GP923 (sinR::spec) PubMed, available in Jörg Stülke's lab
  • GP736 (sinR::tetR) PubMed, available in Jörg Stülke's lab
  • 1S97 (sinR::phleo), PubMed, available at BGSC
  • GP1672 (sinR-tasA::cat) PubMed, available in Jörg Stülke's lab
  • GP1663 (yqhG-sinI-sinR-tasA), available in Jörg Stülke's lab

    • Expression vector

  • N-terminal Strep-tag, for SPINE, expression in B. subtilis, in pGP380: pGP1083 , available in Jörg Stülke's lab

    • LacZ fusion

  • pGP1930 (aphA3) based on pAC7, available in Jörg Stülke's lab

    • Two-hybrid system

  • B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Jörg Stülke's lab

    • FLAG-tag construct

  • GP960 (spc, based on pGP1331), available in Jörg Stülke's lab

    • References

    Reviews

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    Modelling of the SinI/SinR switch

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    Original publications

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