Anti-3OST3A1 antibodies enable researchers to detect and measure the 3OST3A1 antigen in biological samples. This target is a reported synonym of the HS3ST3A1 gene, which encodes heparan sulfate-glucosamine 3-sulfotransferase 3A1. This protein is a reported sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) to catalyze the transfer of a sulfo group to an N-unsubstituted glucosamine linked to a 2-O-sulfo iduronic acid unit on heparan sulfate. The human version of 3OST3A1 has a canonical amino acid length of 406 residues and a protein mass of 44.9 kilodaltons. It is reported to be localized in the Golgi of cells. 3OST3A1 is a member of the Sulfotransferase 1 protein family.