Part:BBa_K1456015

NF-κB (Nuclear Factor kappa B) ROS response element

• After removing the clot, we need an additional sensor system to compensate the hypoxia response elements transcription rates for antioxidant enzymes and proteins. Thus, we targeted to sense the ROS presence to conduct an efficient and swift solution.
• Nuclear factor kappa-B (NF-kB) is a transcription factor complex of hypoxia inducible factor-1 alfa (HIF-1α) protein, which consists of two subunits, p50 and p65. This peptide is detained in cytoplasm by a complementary peptide called IkB. (Kabe et al. 2005) This detention prevents the activation of related promoter sequence existing in the cell nucleus which is named kappa-B response element (kB-RE).
• In some circumstances, NF-kB/IkB complex can be separated by external effects such as radiation, cellular stress, pathogens, inflammation etc. In this case, NF-kB can enter into nucleus and integrate with compatible kB-RE sites in order to initiate transcription. (Gilmore 2006)
• It is later described that one of these stimulants is the presence of ROS. (Bonello et al. 2007) We want to use this advantage to design a novel ROS inducible promoter in human cells in iGEM to be able to sense oxidative stress.

Sequence and Features

Assembly Compatibility:

• 10
  COMPATIBLE WITH RFC[10]
• 12
  COMPATIBLE WITH RFC[12]
• 21
  INCOMPATIBLE WITH RFC[21]

  Illegal XhoI site found at 1
  Illegal XhoI site found at 47
  
• 23
  COMPATIBLE WITH RFC[23]
• 25
  COMPATIBLE WITH RFC[25]
• 1000
  COMPATIBLE WITH RFC[1000]