Biochem/physiol Actions
High-affinity FKBP12 F36V mutant cross-linker for Chemical Induction of Dimerization (CID) of Chimeric Antigen Receptor (CAR) in vitro and in vivo.
Rimiducid (AP1903) is a homodimeric FKBP12 Phe36Val (F36V-FKBP, FKBP-F36V) mutant-selective cross-linker composed of two high-affinity ligands, each with 713-fold selectivity over endogenous FKBP (Kd = 94 pM/F36V- vs 67 nM/Wt-FKBP using 4′-AF-labeled rimiducid). Rimiducid activates signaling events via Chemical Induction of Dimerization (CID) by cross-linking FKBP12-F36 fusions (Chimeric Antigen Receptor or CAR) expressed in cells in cultures (apoptosis induction EC50 = 0.1 nM; HT1080 expressing FKBP(F36V)-Fas intracellular domain) and in animals in vivo (EC50 = 0.4 mg/kg i.v. in a murine model of conditional cell ablation).
| Quality Level | 100 |
| assay | ≥90% (HPLC) |
| form | powder |
| color | white to beige |
| solubility | DMSO: 2 mg/mL, clear (Warmed) |
| storage temp. | -10 to -25°C |
| SMILES string | N2([C@@H](CCCC2)C(=O)O[C@H](CCc8cc(c(cc8)OC)OC)c3cc(ccc3)OCC(=O)NCCNC(=O)COc4cc(ccc4)[C@H](OC(=O)[C@H]6N(CCCC6)C(=O)[C@@H](CC)c7cc(c(c(c7)OC)OC)OC)CCc5cc(c(cc5)OC)OC)C(=O)[C@@H](CC)c1cc(c(c(c1)OC)OC)OC |
| InChI key | GQLCLPLEEOUJQC-ZTQDTCGGSA-N |
