All testicular germ cell tumors (TGCT) with a ~1.5% frequency, prostate adenocarcinoma (PRAD) with a ~1% frequency, and KIRP (< 1% frequency) cases with genetic alterations were found to hold the copy number deletion of MMP7 as their alteration type (Figure 4A). The gene discussed is MMP7; the disease is prostate adenocarcinoma.