Anti-TPST1 antibodies are used in the immunodetection of the protein tyrosylprotein sulfotransferase 1. In humans, the canonical protein has a reported length of 370 amino acid residues and a mass of 42.2 kDa. Its subcellular localization is in the Golgi. It is ubiquitously expressed across many tissue types. A member of the Protein sulfotransferase protein family, TPST1 is known to catalyze the O-sulfation of tyrosine residues within acidic motifs of polypeptides, using 3'-phosphoadenylyl sulfate (PAPS) as cosubstrate. Post-translational modifications have been described, including N-glycosylation. Synonyms for this target antigen include protein-tyrosine sulfotransferase 1, transport and golgi organization 13 homolog A, and TANGO13A. TPST1 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Some TPST1 antibodies may have been used in research and have associated citations. ELISA, Western Blot, and Immunohistochemistry are common applications for these antibodies.