Signalling

Part:BBa_K546000

Designed by: M. Hesselman   Group: iGEM11_Wageningen_UR   (2011-09-14)
Revision as of 09:51, 18 September 2011 by PimK (Talk | contribs)

Lux pL controlled LuxR with lux pR autoinducing LuxI(lva tag)- AHL.

The F2621 BioBrick device contains a -lux pL regulated- luxR repressor/activator gene and a -lux pR regulated- 3OC6HSL synthetase, an AHL [http://en.wikipedia.org/wiki/Autoinducer autoinducer molecule] producing enzyme. The lux pL promoter yields a weak constitutive downstream expression. When LuxR and 3OC6HSL are produced, the lux pL promoter, however, will be repressed by a complex of the two. Complementary to the lux pL promoter, the lux pR promoter with a complex of luxR and 3OC6HSL will enable enlarged activation of the downstream synthetase gene, thus increase the concentration 3OC6HSL.

Safety Aspects

There's a small note regarding the biosafety of this BioBrick composite part. Upon release into the environment (this includes infection of a laboratory worker) this BioBrick composite part might alter the pathogenicity of pathogens that rely on quorum sensing to infect hosts. Pathogenic species that might be involved can be found on the following external [http://2011.igem.org/Team:Wageningen_UR/Safety/One#Risk_Identification_of_BioBrick_System_Inside_the_Cell_Chassis biological safety page].

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 1821
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    INCOMPATIBLE WITH RFC[1000]
    Illegal BsaI.rc site found at 1101


[edit]
Categories
//classic/signalling/receiver
//function/biosynthesis/ahl
//function/cellsignalling
Parameters
control(1) R0063 & (2) R0062
device_typefeedback
directionForward
latencySeconds
protein(1) LuxR & (2) luxI-LVA
signalling_molecule3OC6HSL (AHL)
switch_point(1) 2nM