Anti-KMT2G antibodies enable researchers to detect and measure the KMT2G antigen in biological samples. This target is a reported synonym of the SETD1B gene, which encodes SET domain containing 1B, histone lysine methyltransferase. This protein is known to function in chromatin organization, among other biological roles. The human version of KMT2G has a canonical amino acid length of 1966 residues and a protein mass of 212.8 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus of cells and notably expressed in many tissues, such as the gallbladder and urinary bladder. Other names for this target antigen include IDDSELD and Set1B.