Figure 3From: Increased p53 immunopositivity in anaplastic medulloblastoma and supratentorial PNET is not caused by JC virus JC virus sequences are not detected in embryonal brain tumors. JC virus plasmid DNA is detectable over a wide range of dilutions when added to genomic DNA (A), but was not identified in DNA extracted from a range of embryonal brain tumors (B). In contrast, the ERV-3 endogenous retrovirus is easily detected both using standard dilution curves (C) and in tumor DNA (D).Back to article page