Part:BBa_K1315003

The rpfG gene from Xanthomonas campestris

This is the coding sequence for the RpfG(regulation of pathogenicity factor G) protein. It is the regulator in the two-component signal transduction system of Xanthomonas campestris pv. campestris that is activated by the sensor kinase RpfC(BBa_K1315002) in the presence of DSF(diffusible signal factor). RpfG eventually leads to the activation of the manA promoter (BBa_K1315006).

Usage and Biology

Quorum sensing and bacterial cell signalling are mechanisms known to be utilised by bacteria to regulate their virulence. The RpfC-RpfG sensory system has been found to activate the production of virulence factors like extracellular enzymes and polysaccharides in Xanthomonas campestris. It has been also suggested that this system is involved in linking environmental stimuli, including DSF, with pathogenicity in Xanthomonas campestris. DSF is a cis-unsaturated fatty acid from the DSF family. The RpfC-RpfG two-component system is the most well understood one and is present in all Xanthomonads.

http://www.ncbi.nlm.nih.gov/pubmed/?term=r+ryan+dsf+family http://www.ncbi.nlm.nih.gov/pubmed/?term=A+two-component+system+involving+an+HD-GYP+domain+protein+links+cell%E2%80%93cell+signalling+to+pathogenicity+gene+expression+in+Xanthomonas+campestris

Sequence and Features

Assembly Compatibility:

• 10
  COMPATIBLE WITH RFC[10]
• 12
  COMPATIBLE WITH RFC[12]
• 21
  INCOMPATIBLE WITH RFC[21]

  Illegal BglII site found at 1091
  
• 23
  COMPATIBLE WITH RFC[23]
• 25
  INCOMPATIBLE WITH RFC[25]

  Illegal NgoMIV site found at 619
  
• 1000
  INCOMPATIBLE WITH RFC[1000]

  Illegal SapI.rc site found at 523