The sequence of the OVOS2 gene is defined by 106 GenBank accessions from 94 cDNA clones, from testis (seen 24 times), lung (22), carcinoid (18), eye (11), pooled germ cell tumors (7), retina (5), brain (3), and 22 other tissues. The gene discussed is OVOS2P; the disease is testicular germ cell tumor.