Rezatapopt, also known as PC14586, is p53 Y220C reactivator that binds selectively to p53 Y220C mutant protein and restores the p53 wildtype conformation and transcriptional activity, resulting in potent preclinical antitumor activity. PC14586 was structurally designed to bind tightly to a crevice within the mutant protein (KD~2.5 nM). PC14586 was shown to stabilize the Y220C mutant in the wild type conformation, resulting in reactivation of p53 transcriptional activity and subsequent expression of its target proteins (e.g. p21, MDM2, Bax, PUMA). The reactivation of p53 function is highly selective to Y220C mutant cells and results in arrest of the cell cycle in vitro (IC50 ~0.230-1.8 μM). In nude mice bearing Y220C mutant NUGC3 gastric cancer xenograft tumors, oral administration of PC14586 results in a dose responsive anti-tumor effect. In human xenografts, PC14586 was shown to convert Y220C mutant to the wildtype conformation, resulting in activation of p53 transcription.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.