Desulfoglucosinolate sulfotransferase () is an enzyme that catalyzes related chemical reactions which add a sulfate group in the final step of the biosynthesis of tryptophan- and phenylalanine-derived glucosinolates:
It uses the cofactor 3'-phosphoadenosine-5'-phosphosulfate (PAPS) and gives adenosine 3',5'-bisphosphate as a byproduct. For example, the enzyme characterised from Brassica converts desulfoglucotropaeolin to glucotropaeolin:
Related enzymes act to give other glucosinolates.
This enzyme is a transferase, specifically a sulfotransferase, which transfer sulfur-containing groups. The systematic name of this enzyme class is 3'-phosphoadenylyl-sulfate:desulfoglucosinolate sulfotransferase. Other names in common use include PAPS-desulfoglucosinolate sulfotransferase, 3'-phosphoadenosine-5'-phosphosulfate:desulfoglucosinolate, and sulfotransferase.
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