Part:BBa_C0062
luxR repressor/activator, (no LVA?)
In complex with HSL, LuxR binds to the Lux promoter, activating transcription from Pr BBa_R0062, and repressing transcription from Pl BBa_R0063.
The lux cassette of V. fischeri contains a left and a right promoter. The right promoter gives weak constitutive expression of downstream genes.This expression is up-regulated by the action of the Lux activator, LuxR complexed to HSL. Two molecules of LuxR protein form a complex with two molecules the signalling compound homoserine lactone (HSL). This complex binds to a palindromic site on the promoter, increasing the rate of transcription.
Usage and Biology
We improved this part by using it in a part which allows for the constitutive expression of LuxR (BBa_K1893004). This part also includes the pLux promoter, so that genes placed downstream the promoter will be expressed when induced with 3OC6-AHL. We also made a part which allows for the characterisation of LuxR, as we placed GFP downstream the pLux promoter (BBa_K1893005). The part is currently being characterised.
Unspecified.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]
</div> Contribution: SiCAU-China 2017
Authors: Wenwen Lin
//cds/transcriptionalregulator/activator
//cds/transcriptionalregulator/repressor
//function/cellsignalling
//function/regulation/transcriptional
direction | Forward |
function | Mixed |
ligands | HSL |
protein | LuxR |
swisspro | P12746 |
tag | None |