ARID4A and hepatocellular carcinoma: Tudor domain proteins have also the ability to bind to methyl arginine and are molecular adaptors: the constituents of chromatin remodeling complexes, AT rich interactive 1A (ARID1A) and ARID4A interact with EZH2 and are mutated in hepatocellular carcinoma (HCC), liver, kidney, ovarian and colon cancers.