Description_x000D_ General description_x000D_ Sulfotransferase enzymes catalyze the sulfate conjugation of many hormones, neurotransmitters, drugs, and xenobiotic compounds. These cytosolic enzymes are different in their tissue distributions and substrate specificities. The gene structure(number and length of exons) is similar among family members. SULT4A1b is selectively expressed in brain tissue. Isoform b includes an alternate segment, compared to isoform a, that causes a frameshift. The resulting protein (isoform b) has a distinct and shorter C-terminus when compared to isoform a._x000D_ Immunogen_x000D_ SULT4A1B (NP_795343, )_x000D_ This antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide selected from the C-term of human SULT4A1b._x000D_ Physical form_x000D_ Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide.