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Week 2: May 23-27
From 2011.igem.org
Contents |
Monday
Reporters
The reporters continued research on the linkers to hold the fusion proteins.
Sensors
The sensor group ran PCR for four promoters (J23113, J23105, J23118, J23100). These constitutive promoters will exist in front of the RecA coding sequence.
All
The entire team met with Dr. Richard today to present our project. After hearing our proposal, Dr. Richard pointed out potential roadblocks and needs for fallback ideas:
For the RecA mutations, if we cannot eliminate the recombinase behavior, we may have to eliminate homologous material from our plasmid. This group should be finished in two weeks, and its members will be assigned a new task.
For reporters, in order to test the reporter, we need to use or develop an inducible promoter that will allow the reporter to emit pigment without the lambda sensor.
We also need to construct a control bar that will show if the cells in the dosimeter are dead and the device is working properly. This cell colony will feature a reporter with an inducible promoter that will be triggered by an unknown stimulus.
Dr. Richard also proposed a modeling endeavor comparing the reporting rates of Imperial’s system vs. our proposed redundant system, which features a second GFP fused to the enzyme with a linker cleaved by RecA in addition to the linker cleaved by tev.
