Difference between revisions of "Part:BBa K203119:Design"

Revision as of 14:34, 16 October 2009

NfKB Responsive promoter

Design Notes

[http://2009.igem.org/Team:Heidelberg/Project_Synthetic_promoters RA-PCR] (Fig. 1) was conducted with Oligos containing a NF-κB binding site, plus a small number of "general activators" (NF-Y, Sp1, Ap1, CREB). 33 clones were picked, miniprepped and transfected. NF-κB was then induced by the addition of TNF-&alpha (2.5µM) for 10 hours, and left uninduced as a control. The plate was then scanned by TECAN, an automated fluorescence plate reader. TECAN is very imprecise on eukaryotic cells, and the arbitrary fluorescence we meausred is not proportional to [http://2009.igem.org/Team:Heidelberg/Project_Measurement REU] or another precise measure of mammalian promoter activity, but it can serve as a rough indicator of promoter induction. The result (Fig. 2) shows that most clones appear not to be induced by NF-κB, whereas others are induced at varying levels of strength. We picked clone 31 for submission to the registry and detailled charscterization,.

Fig. 1: Screening of putatively NF-κB inducible promoters

Fig. 2: The method of LAM-PCR. For a detailled description, see [http://2009.igem.org/Team:Heidelberg/Project_Synthetic_promoters our wiki]

Source

Synthesized in our laboratory.

References

RA-PCR, a method for the generation of randomized promoter libraries. igem 2009 Heidelberg team wiki. Available online at http://2009.igem.org/Team:Heidelberg/Project_Synthetic_promoters#Results