DegQ

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  • Description: stimulates production of degradative enzymes and of extracellular poly-gamma-glutamate PubMed, stimulates phosphorylation of DegU by DegS PubMed, gene is not expressed in the lab strain 168 due to promoter down mutation in the -10 region (T - 10 ---> C) PubMed

Gene name degQ
Synonyms sacQ
Essential no
Product pleiotropic regulator
Function regulation of exoenzyme synthesis
MW, pI 5 kDa, 6.536
Gene length, protein length 138 bp, 46 aa
Immediate neighbours comQ, yuzC
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
DegQ context.gif
This image was kindly provided by SubtiList



The gene

Basic information

  • Locus tag: BSU31720

Phenotypes of a mutant

loss of poly-gamma-glutamate production PubMed, no synthesis of nonribosomal peptides iturin A and plipastatin PubMed1 PubMed2, reduced synthesis of degradative enzymes PubMed, increased genetic competence PubMed

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
  • Protein family: degQ family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

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

Database entries

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

Additional information

Expression and regulation

  • Operon:
  • Regulation: expression is induced by high cell density (ComA) PubMed,subject to carbon catabolite repression PubMed, controlled by DegU PubMed
  • Regulatory mechanism: ComA: transcription activation, PubMed, DegU: transcription activation, PubMed
  • Additional information: the gene is not expressed in the lab strain 168 due to promoter down mutation in the -10 region (T - 10 ---> C) PubMed

Biological materials

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

Labs working on this gene/protein

Your additional remarks

References

Nobuchika Takesue, Teruo Sone, Michiko Tanaka, Fusao Tomita, Kozo Asano
Effect of an additionally introduced degQ gene on di-D-fructofuranosyl 2,6':2',6 anhydride (DFA IV) production by recombinant Bacillus subtilis in a single culture production system.
J Biosci Bioeng: 2009, 107(6);623-9
[PubMed:19447339] [WorldCat.org] [DOI] (I p)

Kazuo Kobayashi
Gradual activation of the response regulator DegU controls serial expression of genes for flagellum formation and biofilm formation in Bacillus subtilis.
Mol Microbiol: 2007, 66(2);395-409
[PubMed:17850253] [WorldCat.org] [DOI] (P p)

H Shimotsu, D J Henner
Modulation of Bacillus subtilis levansucrase gene expression by sucrose and regulation of the steady-state mRNA level by sacU and sacQ genes.
J Bacteriol: 1986, 168(1);380-8
[PubMed:2428811] [WorldCat.org] [DOI] (P p)