Part:BBa_K101002:Design

Dual-Repressed Promoter for p22 cII and TetR

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

TetR usually binds to two operator sites, one located upstream from -35 and one located between -35 and -10. However, p22 mnt also has two operator sites, one between -35 and -10 and another downstream from -10. Since each had an operator site in between -35 and -10, we had to eliminate the TetR operator site in order to allow the promoter to work. TetR was picked because it has a stronger binding than p22 mnt, and so would be more able to use only one site to bind.

Source

This part was designed by combining sequences from parts R0040 (TetR promoter) and R0053 (p22 cII promoter).