Anti-SULT1A4 antibodies are used in the immunodetection of the protein sulfotransferase family 1A member 4. In humans, the canonical protein has a reported length of 295 amino acid residues and a mass of 34.2 kDa. Its subcellular localization is in the cytoplasm. It is notably expressed in the small intestine, rectum, duodenum, colon, and appendix. A member of the Sulfotransferase 1 protein family, SULT1A4 is a reported sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the sulfate conjugation of phenolic monoamines (neurotransmitters such as dopamine, norepinephrine and serotonin) and phenolic and catechol drugs. Synonyms for this target antigen include SLX1B-SULT1A4, Sulfotransferase 1A3, aryl sulfotransferase 1A3/1A4, catecholamine-sulfating phenol sulfotransferase, and sulfotransferase 1A4. Some SULT1A4 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.