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  • Description: citrate synthase

Gene name citZ
Synonyms citA2
Essential no
Product citrate synthase II
Function TCA cycle
MW, pI 41 kDa, 5.451
Gene length, protein length 1116 bp, 372 aa
Immediate neighbours ytwI, icd
Gene sequence (+200bp) Protein sequence
Genetic context
CitZ context.gif

The gene

Basic information

  • Coordinates:

Phenotypes of a mutant

glutamate auxotrophy and a defect in sporulation PubMed

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
  • Protein family:
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity: inhibited by ATP PubMed
  • Interactions:
  • Localization:

Database entries

  • Structure: 2C6X (Structure of Bacillus Subtilis Citrate Synthase)
  • Swiss prot entry:
  • KEGG entry:
  • E.C. number:

Additional information

Expression and regulation

  • Regulation: catabolite repression (CcpA), repression by glucose + glutamate (CcpC) PubMed, repression under anaerobic conditions PubMed
  • Regulatory mechanism: CcpA: transcription repression, CcpC: transcription repression PubMed
  • Additional information:

Biological materials

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

Labs working on this gene/protein

Linc Sonenshein, Tufts University, Boston, MA, USA Homepage

Jörg Stülke, University of Göttingen, Germany Homepage

Your additional remarks


  1. Kim HJ, Roux A, Sonenshein AL (2002b) Direct and indirect roles of CcpA in regulation of Bacillus subtilis Krebs cycle genes. Mol Microbiol 45:179-190. PubMed
  2. Nakano MM, Zuber P, Sonenshein AL (1998) Anaerobic regulation of Bacillus subtilis Krebs cycle genes. J Bacteriol. 180: 3304-3311. PubMed
  3. Jin S, Sonenshein AL (1994) Identification of two distinct Bacillus subtilis citrate synthase genes J Bacteriol. 176: 4669-4679. PubMed
  4. Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed