PIN4 or PIN-4 may refer to:
- PIN4, the gene encoding the protein Peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 (PIN4)
- PIN-4, a cocktail for immunohistochemistry, targeting TP63, CK-5, CK-14 and P504S
This disambiguation page lists articles associated with the title PIN4.
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