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disA [2017-05-09 15:36:34]
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disA [2017-05-09 15:36:34]

DNA integrity scanning protein, diadenylate cyclase, delays sporulation in the case of chromosome damage, the DisA-dependent checkpoint arrests DNA replication during B. subtilis spore outgrowth until the germinating spores genome is free of damage
Locus
BSU00880
Isoelectric point
5.57
Molecular weight
40.58 kDa
Protein length
360 aa Sequence Blast
Gene length
1080 bp Sequence Blast
Function
control of sporulation initiation
Product
DNA integrity scanning protein, has diadenylate cyclase activity
Essential
no
E.C.
2.7.7.85
Synonyms
yacK

Genomic Context

      
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Categories containing this gene/protein

Gene

Coordinates
107,476 → 108,558

The protein

Catalyzed reaction/ biological activity

  • synthesis of c-di-AMP from two molecules of ATP PubMed
  • Protein family

  • disA family (according to Swiss-Prot)
  • Domains

  • contains a DAC domain for the synthesis of c-di-AMP PubMed
  • Effectors of protein activity

  • RadA is an inhibitor of DisA activity PubMed
  • Structure

    Localization

  • see a video showing the movement of DisA in the cell (in real time) PubMed
  • forms discrete globular foci in germinating spres that colocalize with the nucleoid PubMed
  • Additional information

  • subject to Clp-dependent proteolysis upon glucose starvation PubMed
  • Expression and Regulation

    Operons

    Description

    Sigma factors

  • SigM: sigma factor, PubMed, in SigM regulon
  • SigA: sigma factor, PubMed, in SigA regulon
  • SigB: sigma factor, PubMed PubMed, in SigB regulon
  • SigF: sigma factor, PubMed, in SigF regulon
  • Regulatory mechanism

  • CtsR: repression, PubMed, in CtsR regulon
  • Spx: activation, PubMed, in Spx regulon
  • Regulation

  • expressed during germination and spore outgrowth PubMed
  • induction during diamide stress (Spx) PubMed
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    Genes
    Description

    Regulation

  • expressed during germination and spore outgrowth PubMed
  • view in new tab

    Biological materials

    Mutant

  • MGNA-B932 (yacK::erm), available at the NBRP B. subtilis, Japan
  • GP2142 (disA::tet), available in Jörg Stülke's lab
  • BKG2 (radA-disA::spc), available in Jörg Stülke's lab
  • 1A939 ( disA::tet), PubMed, available at BGSC
  • Expression vector

  • IPTG inducible expression of His-disA in E. coli: pGP2563 (in pET19b), available in Jörg Stülke's lab
  • Two-hybrid system

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

    Reviews

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    Original publications

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