GyrB

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  • Description: DNA-Gyrase (subunit B)

Gene name gyrB
Synonyms novA
Essential yes PubMed
Product DNA-Gyrase (subunit B)
Function DNA supercoiling,
initation of replication cycle and DNA elongation
MW, pI 71 kDa, 5.378
Gene length, protein length 1914 bp, 638 aa
Immediate neighbours yaaB, gyrA
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
DnaA dnaN yaaA recF yaaB gyrB context.png
This image was kindly provided by SubtiList




The gene

Basic information

  • Locus tag: BSU00060

Phenotypes of a mutant

essential PubMed

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: ATP-dependent breakage, passage and rejoining of double-stranded DNA (according to Swiss-Prot)
  • Protein family: type II topoisomerase family (according to Swiss-Prot)
  • Paralogous protein(s): ParE

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:
  • Localization: nucleoid-associated in actively growing cells PubMed

Database entries

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

Additional information

Expression and regulation

  • Regulation:
  • Regulatory mechanism:
  • Additional information: GyrB is subject to Clp-dependent proteolysis upon glucose starvation PubMed

Biological materials

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

Labs working on this gene/protein

Dagmar Klostermeier, Biozentrum Basel, Switzerland homepage

Your additional remarks

References

Ulf Gerth, Holger Kock, Ilja Kusters, Stephan Michalik, Robert L Switzer, Michael Hecker
Clp-dependent proteolysis down-regulates central metabolic pathways in glucose-starved Bacillus subtilis.
J Bacteriol: 2008, 190(1);321-31
[PubMed:17981983] [WorldCat.org] [DOI] (I p)

W M Huang, J L Libbey, P van der Hoeven, S X Yu
Bipolar localization of Bacillus subtilis topoisomerase IV, an enzyme required for chromosome segregation.
Proc Natl Acad Sci U S A: 1998, 95(8);4652-7
[PubMed:9539793] [WorldCat.org] [DOI] (P p)

N Ogasawara, S Moriya, H Yoshikawa
Structure and function of the region of the replication origin of the Bacillus subtilis chromosome. IV. Transcription of the oriC region and expression of DNA gyrase genes and other open reading frames.
Nucleic Acids Res: 1985, 13(7);2267-79
[PubMed:2987848] [WorldCat.org] [DOI] (P p)