POMGNT2 and carcinoma: In this context, POMGNT2 has been detected to be O-glycosylated at aa 43 in human cultured HEK293 cells and the hepatocellular HepG2 carcinoma cell line [93], to be N-glycosylated at two sites, corresponding to aas 276 and 543, in some mouse tissues [92], and to be ubiquitinated at residue 145 in the human Jurkat cell line derived from T lymphocytes [94].