In direct ELISAs and Western blots, less than 1% cross-reactivity with recombinant human (rh) SULT1B1, rhSULT1A1, rhSULT2A1, rhSULT4A1, and rhSULT1E1 is observed. Reconstitute at 0.2 mg/mL in sterile PBS. Cytosolic sulfotransferases (STs or SULTs) cataly