Team:Paris/DryLab
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Revision as of 11:03, 18 October 2009
iGEM > Paris > Home > DryLab > Main
Main
Questions
Our Message in a Bubble project is fully integrated inside a reflection on communication between bacterias. Among all problems raised during the discussions, we solved 3 of them with modelisation :
- To improve the quality of signal sent, how can we get a synchronisation between the maximum concentration of proteins encapsulated and the maximum quantity of vesicules sent by time units ?
- Are vesicules only a result of the overexpression of soluble parts of membrane proteins ?
- How can we optimize the quality of the reception i.e getting a robust response with a limited number of messengers sent ?
Results
To create a delay between the maximum concentration of proteins and of the maximum creation of vesicules by time units, we used a transcriptional cascade inside the genetic network thus synchronising protein and vesicule creations.
Plot showing that vesiculation happens only once the protein encapsulated has reached its maximal concentration.
Indeed, the over expression of soluble parts.....
Pierre
Concerning reception, stochastic simulations revealed two possible problems reducing the robustness of our reception system :
- when the amount of messengers received is too weak, the activation does not always occur
- even when it occurs, the activation time can vary.