RNA

Part:BBa_K3328042:Design

Designed by: Qi Wu   Group: iGEM20_OUC-China   (2020-10-03)
Revision as of 14:11, 22 October 2020 by Felix Felicis (Talk | contribs)


triggerA of IMPLY gate (IMPLY2)


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    COMPATIBLE WITH RFC[12]
  • 21
    COMPATIBLE WITH RFC[21]
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]


Design Notes

We combined the 3WJ switch and toehold switch to realize the IMPLY Boolean calculation. When no trigger expressed, this logic gate just likes a 3WJ switch. When trigger A expressed, the trigger will bind to the switch RNA. The binding allows for a branch migration process, exposing AUG and RBS for translation initiation. When trigger B expressed, the trigger will bind to 3WJ switch RNA. The resulting trigger–switch complex has a stable 3WJ structure that effectively sequesters the RBS and start codon within the loop and stem of the switch RNA, respectively, and strongly represses translation. When trigger A and B both expressed, the binding of trigger RNA to the toehold sequence allow the RNA polymerase binds to the former RBS and break open 3WJ stable hairpin.

799px-T--OUC-China--design_lunbo_imply.jpg

Source

synthesize from company


References

Green, A. A., Silver, P. A., Collins, J. J., and Yin, P. (2014) toehold switches: de-novo-designed regulators of gene expression. Cell 159, 925– 939, DOI: 10.1016/j.cell.2014.10.002