Sulfotransferase

Sulfotransferases EC 2.8.2.- are transferase enzymes that catalyze the transfer of a sulfo group from a donor molecule to an acceptor alcohol or amine. The most common sulfo group donor is 3'-phosphoadenosine-5'-phosphosulfate (PAPS). In the case of alcohol as acceptor, the product is a sulfate (R-OSO₃⁻), whereas an amine leads to a sulfamate (R-NH-SO₃⁻). Both reactive groups for a sulfonation via sulfotransferases may be part of a protein, lipid, carbohydrate or steroid.

The following are examples of sulfotransferases:

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