Difference between revisions of "Part:BBa K658001"

Latest revision as of 18:48, 8 June 2015

Due to patent issues, samples of this part cannot be requested. - iGEM Headquarters

The device is designed to build a programmed bacterial death circuit, which is based on the quorum sensing system of Vibrio fischeri. The LuxI protein synthesizes a small, diffusible acyl-homoserinelactone (AHL) signaling molecule. The AHL accumulates as the cell density increases. At sufficiently high concentrations, it binds the LuxR, which induces the expression of the killer gene ccdB under the control of a promoter lux pR. Sufficiently high levels of CcdB which is a bacterial toxin that targets DNA gyrase cause cell death. Low cell density doesn’t have the ability to produce sufficient LuxR/AHL complex to activate the promoter lux pR. The programmed death circuit ends and the cell density increases. When the cells reach a certain concentration, the death circuit is restarted. Back and forth, the programmed death is achieved in the dynamic process of growth and death.In that way, the bacteria population is programmed to maintain one certain cell density.

a bacteria population-control device with RBS1.0 driven by lacl+pL

Assembly Compatibility:

10
COMPATIBLE WITH RFC[10]
12
COMPATIBLE WITH RFC[12]
21
INCOMPATIBLE WITH RFC[21]
Illegal BglII site found at 718
23
COMPATIBLE WITH RFC[23]
25
COMPATIBLE WITH RFC[25]
1000
INCOMPATIBLE WITH RFC[1000]
Illegal BsaI site found at 2344
Illegal BsaI.rc site found at 1874

@@ Line 1: / Line 1: @@
+'''''<center><span style="font-weight:bold; font-size:110%; color:red">Due to patent issues, samples of this part cannot be requested. - iGEM Headquarters</span></center>'''''
 The device is designed to build a programmed bacterial death circuit, which is based on the quorum sensing system of Vibrio fischeri.
 The LuxI protein synthesizes a small, diffusible acyl-homoserinelactone (AHL) signaling molecule. The AHL accumulates as the cell density increases. At sufficiently high concentrations, it binds the LuxR, which induces the expression of the killer gene ccdB under the control of a promoter lux pR.