Team:elan vital korea/Result

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PROJECT
-Result-

Result

Our project had two main stages: in the first stage, we made the relevant plasmids, and in the second stage, we tested the cells transformed with the resulting plasmids. On the second stage, we used control experiments to make sure that the results we got was our actual results. For the control tests, we used untransformed E. coli and pure AHL as control groups.

Through the experiments, we confirmed the successful recombination of the test plasmid and the reporter plasmid, and the successful transformation of the test cell and the reporter cell. To make sure everything goes as planned, we tested the plasmids not only at the end, but also after the addition of each part.

For our project, we engineered three plasmids: reporter plasmid and two test plasmid. The reporter cell, which are competent E. coli transformed by reporter plasmids, produces LuxR, and has an inducible promoter that is activated by a LuxR-AHL complex. This promoter activates the transcription of GFP, which is easily detectable. The test cell, which are competent E. coli transformed by test plasmids, produces lactonase, which breaks down AHL. For the test plasmid, we tried two different types of enzymes: AiiA, and LacZ or beta-galactosidase.

When the test cell is treated with AHL, it breaks down AHL. When the reporter cell is added to the mix, no GFP is produced, as there is no AHL, whereas GFP is produced when a control group is used instead of a test cell.