URB2 and hepatocellular carcinoma: Other genes harboring high impact variants with increased VAFs in the in vivo Oncopig HCC tumor compared to the Oncopig HCC cell line include CCDC47, GFM2, IRF2BP1, LRRC10B, MICU3, MTCL1, OR51B2, PCDHAC2, PRUNE2, RDX, THBS3, URB2, and ZMYM6 genes (Table 8).