In addition, the Gene Expression Profiling Interactive Analysis (GEPIA) of the database of human testicular tumors, showing a dramatic decrease in the expression of PRM2, AZIN2 and OAZ3 in the tumors versus normal tissue, profile completely different to that found for AZIN1 and OAZ1, indirectly suggests that AZIN2 is fundamentally expressed in human haploid testicular cells. Here, OAZ3 is linked to neoplasm of testis.