Please note: this product can only be supplied to registered research and development facilities, and may be used for in vitro research use only, not for administration to humans or animals.

Binds to p53 and inhibits cop1 binding.

p28 is an amphipathic, ?-helical, cell penetrating peptide composed of amino acids Leu50-Asp77 of azurin, a redox protein secreted from the opportunistic pathogen pseudomonas aeruginosa. p28 is a post translational, multitarget anticancer agent that preferentially enters a wide variety of solid tumour cells. On entry, p28 binds to both wild-type and mutant p53 protein, inhibiting constitutional morphogenic protein 1 (cop1) mediated ubiquitination and proteasomal degradation of p53, increasing levels of p53 which induce cell cycle arrest at G2/M and causing apoptosis that results in tumour cell shrinkage and death.

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