Team:Chiba/System 1/Testing components

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Testing individual parts

To realize the genetic double click system, we made two plasmids. First one is “GFP generator”, which generates the output (GFP expression) on condition that T7 RNAP activates the GFP upstream promoter and also CI protein does not repress that promoter. Second one is “Pulse generator”, which generate the pulse of T7 RNAP in response to the 1st and 2nd input. The subparts of those plasmids are shown in Fig.1.


Regarding with those two plasmids, we tested the function of each parts in the plasmids.

For GFP generator, the parts shown below were checked.

1. Constitutive promoter
2. LuxR
3. T7/CI-OR1 hybrid promoter


For Pulse generator, the parts shown below were checked.

1. Lux/CI434 hybrid promoter
2. Pulse generator

Also, we checked if there were no crosstalk between CI/CI434 and CI promoter/CI434 promoter.