Anti-beta-1,4-N-acetyl-galactosaminyltransferase 4 antibodies are used for the immunodetection of the protein encoded by the B4GALNT4 gene. In humans, the canonical protein has a reported length of 1039 amino acid residues and a mass of 116.5 kDa. Its subcellular localization is in the Golgi. It is reported to be highly expressed in ovary, adult and fetal brain. It is a member of the Chondroitin N-acetylgalactosaminyltransferase protein family. Post-translational modifications have been described, including glycosylation. Other names for this target antigen include N-acetyl-beta-glucosaminyl-glycoprotein 4-beta-N- acetylgalactosaminyltransferase, NGalNAc-T1, beta-1,4-N-acetylgalactosaminyltransferase IV, and N-acetyl-beta-glucosaminyl-glycoprotein 4-beta-N-acetylgalactosaminyltransferase 1. Gene orthologs have been identified in the mouse, rat, bovine, frog, chimpanzee and chicken species.