This product specifically recognizes an epitope within the C-terminal (CT) region of tumour protein p63, otherwise known as tumour protein p73-like (p73L), a widely expressed nuclear protein and homologue of tumour suppressor p53, which acts as a sequence-specific DNA binding transcriptional activator/repressor.

p63, vital for the development of the prostate and selectively expressed by normal prostate basal cells, has been shown to be a promising complementary basal cell specific marker to High Molecular Weight-Cytokeratin (HMW-CK), for the differential diagnosis of benign prostatic lesions and prostatic carcinoma.

This product is reported as suitable for use in immunocytochemistry.