Part:BBa_K3610022

FKBP

The FK506 binding protein, or FKBP, is a protein belonging to the immunophilin family and has proven to be a useful tool in biological research. Functionally, the protein is a peptidyl-prolyl cis-trans isomerase (PPI).

Responsible for its prominent role in research is the ability of FKBP to bind to rapamycin, an antifungal antibiotic macrolide. What makes this interaction interesting is the fact that rapamycin binds to FKBP and the FKBP–rapamycin binding (FRB) domain of the mammalian target of rapamycin (mTOR) simultaneously, inducing a dimerization of those two components. This properties of FKBP and FRB have been exploited for conditional dimerization of proteins of interest, which offers many possibilities to artificially manipulate cellular processes, by fusing them to FKBP and FRB.

Sequence and Features

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]