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Team:Paris Bettencourt/ComS diffusion
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| - | <p>The use of the rok system has been invented by Elowitz et al. | + | <p>The use of the rok system has been invented by Elowitz et al. <a href="http://www.elowitz.caltech.edu/publications/Tunability.pdf">[1]</a>. Adding an additionnal repression help the system to have a shorter period.</p> |
<p>The activity of the pComK promoter is monitored by a construction pComK-GFP.</p> | <p>The activity of the pComK promoter is monitored by a construction pComK-GFP.</p> | ||
| - | <p>The CodY- strand is obtained thanks to Link Sonenshein <a href="http://www.tufts.edu/sackler//facultyIntros/sonensheinA.html">[ | + | <p>The CodY- strand is obtained thanks to Link Sonenshein <a href="http://www.tufts.edu/sackler//facultyIntros/sonensheinA.html">[2]</a> and the different constructs will be biobricked from the construction made by the M. Elowitz's laboratory [http://www.elowitz.caltech.edu/index.html] and published in this paper<a href="http://www.elowitz.caltech.edu/publications/Tunability.pdf">[3]</a></p> |
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Revision as of 14:04, 12 September 2011
The ComS diffusion system
Introduction to the system
Introducing the design
The MeKS system is a noise tolerent bi-stable system that regulate the competence. However, this system is working in the stationnary phase, and we want to use it in the expodential phase.
To outsource the system, we have to work with a B. Subtilis strain CodY-, because CodY repress the MeKS system during the expodential phase, as well as thousands of stationnary phase gene. This strategy has been adopted because CodY regulation is so strong and touch so many gene, that it was faster to get rid of the regulator itself. The emittor cell has to be ComK- because we want to avoid the competence in a system that will modify the cell behaviour and may prevent the nanotubes from forming.
The design is the following:
Fig2: Schematic of our ComS design
The use of the rok system has been invented by Elowitz et al. [1]. Adding an additionnal repression help the system to have a shorter period.
The activity of the pComK promoter is monitored by a construction pComK-GFP.
The CodY- strand is obtained thanks to Link Sonenshein [2] and the different constructs will be biobricked from the construction made by the M. Elowitz's laboratory [http://www.elowitz.caltech.edu/index.html] and published in this paper[3]
