Anti-ST8SIA3 antibodies are used in the immunodetection of the protein ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 3. In humans, the canonical protein has a reported length of 380 amino acid residues and a mass of 44 kDa. Its subcellular localization is in the Golgi. It is reported to be expressed in fetal and adult brain and fetal liver. A member of the Glycosyltransferase 29 protein family, ST8SIA3 is known to catalyze the transfer of sialic acid from a CMP-linked sialic acid donor onto the terminal sialic acid of an acceptor through alpha-2,8-linkages. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include ST8SiaIII, sia-alpha-2,3-Gal-beta-1,4-GlcNAc-R:alpha 2,8-sialyltransferase, SIAT8-C, ST8 alpha-N-acetylneuraminate alpha-2,8-sialyltransferase 3, and SIAT8C. ST8SIA3 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Western Blot is the most common application for the ST8SIA3 antibodies listed below. ELISA, Flow Cytometry, and Immunohistochemistry are also common applications.