CymR

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Gene name cymR
Synonyms yrzC
Essential no
Product transcription repressor
Function regulation of sulfur metabolism
Gene expression levels in SubtiExpress: cymR
Interactions involving this protein in SubtInteract: CymR
Metabolic function and regulation of this protein in SubtiPathways:
Riboflavin / FAD, Cys, Met & Sulfate assimilation
MW, pI 11 kDa, 9.879
Gene length, protein length 333 bp, 111 aa
Immediate neighbours yrvO, yrvN
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
YrzC context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
CymR expression.png



























Categories containing this gene/protein

sulfur metabolism, transcription factors and their control, regulators of core metabolism

This gene is a member of the following regulons

stringent response

The CymR regulon

The gene

Basic information

  • Locus tag: BSU27520

Phenotypes of a mutant

  • impaired growth in the presence of cystine and increased sensitivity to hydrogen peroxide-, disulfide-, paraquat- and tellurite-induced stresses PubMed
  • increased intracellular cysteine pool and hydrogen sulfide formation PubMed
  • depletion of branched-chain amino acids PubMed

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
  • Protein family: Rrf2 family of transcription regulators
  • Paralogous protein(s):

Genes repressed by CymR

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Effectors of protein activity:
  • Interactions:
    • CymR-CysK, the complex is formed in the presence of cysteine, and results in DNA binding and repression of genes of cysteine biosynthesis PubMed

Database entries

  • KEGG entry: [3]
  • E.C. number:

Additional information

Expression and regulation

  • Regulation:
    • RelA dependent downregulation (Class I) during stringent response PubMed
  • Regulatory mechanism:
  • Additional information:

Biological materials

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

Labs working on this gene/protein

Isabelle Martin-Verstraete, Institute Pasteur, Paris, France

Your additional remarks

References

The CymR regulon

Other original publications

Additional publications: PubMed