MhqA

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  • Description: hydroquinone-specific dioxygenase, confers resistence to methyl-hydroxyquinone

Gene name mhqA
Synonyms ykcA
Essential no
Product hydroquinone-specific dioxygenase
Function resistence to methyl-hydroxyquinone
MW, pI 35 kDa, 5.404
Gene length, protein length 948 bp, 316 aa
Immediate neighbours steT, ykcB
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
YkcA context.gif
This image was kindly provided by SubtiList



Categories containing this gene/protein

resistance against oxidative and electrophile stress

This gene is a member of the following regulons

MhqR regulon

The gene

Basic information

  • Locus tag: BSU12870

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: extradiol ring-cleavage dioxygenase family (according to Swiss-Prot)

Extended information on the protein

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

Database entries

  • Structure: 3OAJ (MhqO, 34% identical residues)
  • KEGG entry: [3]
  • E.C. number:

Additional information

Expression and regulation

  • Regulation:
    • induced by catechol and 2-methylhydroquinone (MhqR) PubMed
  • Regulatory mechanism:
  • Additional information:

Biological materials

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

Labs working on this gene/protein

Your additional remarks

References

Stefanie Töwe, Montira Leelakriangsak, Kazuo Kobayashi, Nguyen Van Duy, Michael Hecker, Peter Zuber, Haike Antelmann
The MarR-type repressor MhqR (YkvE) regulates multiple dioxygenases/glyoxalases and an azoreductase which confer resistance to 2-methylhydroquinone and catechol in Bacillus subtilis.
Mol Microbiol: 2007, 66(1);40-54
[PubMed:17725564] [WorldCat.org] [DOI] (P p)

Van Duy Nguyen, Carmen Wolf, Ulrike Mäder, Michael Lalk, Peter Langer, Ulrike Lindequist, Michael Hecker, Haike Antelmann
Transcriptome and proteome analyses in response to 2-methylhydroquinone and 6-brom-2-vinyl-chroman-4-on reveal different degradation systems involved in the catabolism of aromatic compounds in Bacillus subtilis.
Proteomics: 2007, 7(9);1391-408
[PubMed:17407181] [WorldCat.org] [DOI] (P p)