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153 products · 275 listings
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FROM PEPTIDES CALCULATOR
Source profile reviewed 2026-10-01 · Imported 2026-10-22. Read the full compound profile
PNC-27 is a 32-amino-acid synthetic peptide that joins residues 12 to 26 of the human p53 tumour suppressor, the part that binds the HDM-2 (MDM2) protein, to penetratin, a membrane residency sequence from the Antennapedia protein. Groups at SUNY Downstate, Drexel and collaborating institutions report that cancer cells carry HDM-2 in their plasma membrane while untransformed cells do not, and that PNC-27 binds that membrane HDM-2 and forms pores, killing the cell by necrosis rather than apoptosis; cells engineered to display HDM-2 on their surface became susceptible. The compound has been tested in cancer cell lines, patient-derived ovarian tumour cells and mouse leukaemia models, but never in a human trial, and several of its investigators hold patents or company positions. In January 2017 the FDA warned consumers not to buy or use PNC-27 as a cancer treatment after finding the bacterium Variovorax paradoxus in a sample of an inhalation solution sold online.
Molecular structure and properties
Mechanism of selective cancer cell destruction
Background is reproduced from Peptides Calculator with attribution. The source describes compound-level research. It does not evaluate the identity, quality or suitability of a listed supplier’s product or batch.