GyrA

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  • Description: DNA gyrase (subunit A)

Gene name gyrA
Synonyms nalA
Essential yes PubMed
Product DNA gyrase (subunit A)
Function DNA supercoiling,
initation of replication cycle and DNA elongation
Interactions involving this protein in SubtInteract: GyrA
MW, pI 91 kDa, 5.215
Gene length, protein length 2463 bp, 821 aa
Immediate neighbours gyrB, rrnO-16S
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
GyrA context.png
This image was kindly provided by SubtiList




Categories containing this gene/protein

DNA condensation/ segregation, essential genes

This gene is a member of the following regulons

The gene

Basic information

  • Locus tag: BSU00070

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: topoisomerase gyrA/parC subunit family (according to Swiss-Prot)
  • Paralogous protein(s): ParC

Extended information on the protein

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

Database entries

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

Additional information

  • subject to Clp-dependent proteolysis upon glucose starvation PubMed

Expression and regulation

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

Additional references: PubMed

Airat Gubaev, Manuel Hilbert, Dagmar Klostermeier
The DNA-gate of Bacillus subtilis gyrase is predominantly in the closed conformation during the DNA supercoiling reaction.
Proc Natl Acad Sci U S A: 2009, 106(32);13278-83
[PubMed:19666507] [WorldCat.org] [DOI] (I p)

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)

Thomas Göttler, Dagmar Klostermeier
Dissection of the nucleotide cycle of B. subtilis DNA gyrase and its modulation by DNA.
J Mol Biol: 2007, 367(5);1392-404
[PubMed:17320901] [WorldCat.org] [DOI] (P p)

Jean-Christophe Meile, Ling Juan Wu, S Dusko Ehrlich, Jeff Errington, Philippe Noirot
Systematic localisation of proteins fused to the green fluorescent protein in Bacillus subtilis: identification of new proteins at the DNA replication factory.
Proteomics: 2006, 6(7);2135-46
[PubMed:16479537] [WorldCat.org] [DOI] (P 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)