Difference between revisions of "Part:BBa K1151038"
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Revision as of 12:41, 30 September 2013
Double generator NikR-GFP, IPTG-nickel regulated
A simple construct composed of K1151006 + K1151011, used for the NikR activity study.
Fluorescence decay assay
The experiment
Considerations
In both graphs it's evident the difference between the 3 controls sample (LB, LB+Ni2+, LB+IPTG) compared to the Ni-IPTG incubated sample in the time-dependent fluorescence signal variations.
The expression of the repressor, NikR (BBa_K1151000), under the plac promoter control, has effects on the fluorescence level of GFP only in the culture incubated with nickel. The response of repression of GFP is found in both the constructs with NikR-responsive promoters and it is quite clear despite the long half-life of GFP.
The proof showed the correct operation of the biobricks, in particular the good functionality of the repression mechanism, nickel-dependent, operated by NikR on the two promoters, that composed a divergent intergenic region of Helicobacter pylori, pnikr e pexbB.
Measurements were made, with Tecan Infinite 200 PRO multimode reader, at two typical wavelenghts of GFP to have a complete and secure framework of the experiments.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI.rc site found at 1737