Coding
luxr

Part:BBa_C0062

Designed by: Vinay S Mahajan, Voichita D. Marinescu, Brian Chow, Alexander D Wissner-Gross and Peter Carr   Group: Antiquity   (2003-01-31)
Revision as of 12:06, 24 October 2017 by Lww (Talk | contribs)

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


Barcodes are discontinued, but one was appended to the sequence of this part. Composite parts using this part will include the barcode. More ...

Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    COMPATIBLE WITH RFC[12]
  • 21
    COMPATIBLE WITH RFC[21]
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]

Contribution: SiCAU-China 2017 Authors: Wenwen Lin

[edit]
Categories
//cds
//cds/transcriptionalregulator/activator
//cds/transcriptionalregulator/repressor
//function/cellsignalling
//function/regulation/transcriptional
Parameters
directionForward
functionMixed
ligandsHSL
proteinLuxR
swissproP12746
tagNone