DNAAF1 and seminoma: In addition DNAAF1 is highly methylated in seminomas, as compared with non-seminomas (P=2.3 × 10−7, Kruskal–Wallis test), and this is accompanied by downregulation of DNAAF1 expression as compared with normal testis (P=2.2 × 10−16, Kruskal–Wallis test).