TkmA

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• Description: transmembrane modulator of PtkA activity, activates PtkA autophosphorylation and substrate phosphorylation <br/><br/>

Gene name	tkmA
Synonyms	ywqC
Essential	no
Product	modulator of PtkA activity
Function	control of protein tyrosine phosphorylation
MW, pI	26 kDa, 4.61
Gene length, protein length	744 bp, 248 aa
Immediate neighbours	ptkA, ywqB
Get the DNA and protein sequences <br/> (Barbe et al., 2009)
Genetic context <br/> <div align="right"> <small>This image was kindly provided by SubtiList</small></div>

<br/><br/>

The gene

Basic information

• Locus tag: BSU36260

Phenotypes of a mutant

the mutant exhibits a defect in biofilm formation PubMed

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: transmembrane activation of PtkA protein tyrosine kinase activity

• Protein family: cpsC/capA family (according to Swiss-Prot)

• Paralogous protein(s): EpsA

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions: PtkA-TkmA PubMed

• Localization: cell membrane (according to Swiss-Prot)

Database entries

• Structure:

• UniProt: P96715

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: tkmA-ptkA-ptpZ-ugd PubMed

• Sigma factor: SigA PubMed

• Regulation:

• Regulatory mechanism:
  • DegU-P: transcription repression PubMed
  • AbrB: transcription repression PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

<pubmed>12970183, 20815827 20817675</pubmed>