The variation of ORF1p and ORF2p expression in the prostate cell lines did not correlate with common features of prostate cancer such as PTEN or p53 mutation, or the presence of the TMPRSS2/ERG gene fusion or AR splice variants (Additional file 1: Figure S1A and Additional file 2: Table S1). The gene discussed is PTEN; the disease is prostate carcinoma.