ComA

• Description: two-component system response regulator, controls gene expression in response to cell density (concentration of ComX)
  
  

Gene name	comA
Synonyms	srfB, comAA
Essential	no
Product	two-component system response regulator
Function	regulation of genetic competence and quorum sensing
MW, pI	23 kDa, 4.759
Gene length, protein length	642 bp, 214 aa
Immediate neighbours	yuxO, comP
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU31680

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: (2R)-2-O-phospho-3-sulfolactate = phosphoenolpyruvate + hydrogen sulfite (according to Swiss-Prot)

• Protein family: ComA family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification: phosphorylated by ComP

• Cofactor(s):

• Effectors of protein activity: phosphorylation activates DNA binding

• Interactions: RapC-ComA, ComP-ComA

• Localization: cytoplasm (according to Swiss-Prot)

Database entries

• Structure: 1U83

• Swiss prot entry: P14204

• KEGG entry: [3]

• E.C. number: 4.4.1.19

Expression and regulation

• Operon:

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody: