Anti-ST8 alpha-N-acetylneuraminate alpha-2,8-sialyltransferase 4 antibodies enable researchers to detect and measure the ST8 alpha-N-acetylneuraminate alpha-2,8-sialyltransferase 4 antigen in biological samples. This target is a reported synonym of the ST8SIA4 gene, which encodes ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 4. This protein is known to function in nervous system development and protein glycosylation, among other biological roles. The human version of ST8 alpha-N-acetylneuraminate alpha-2,8-sialyltransferase 4 has a canonical amino acid length of 359 residues and a protein mass of 41.3 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the Golgi of cells and widely expressed in many tissue types. ST8 alpha-N-acetylneuraminate alpha-2,8-sialyltransferase 4 is a member of the Glycosyltransferase 29 protein family.