IUBMB Enzyme Nomenclature


Accepted name: quercetin-3-sulfate 4'-sulfotransferase

Reaction: 3'-phosphoadenylyl sulfate + quercetin 3-sulfate = adenosine 3',5'-bisphosphate + quercetin 3,4'-bissulfate

For diagram click here.

Glossary: 3'-phosphoadenylyl sulfate = PAPS

Other names: flavonol 4'-sulfotransferase; PAPS:flavonol 3-sulfate 4'-sulfotransferase; 3'-phosphoadenylyl-sulfate:quercetin-3-sulfate 4'-sulfotransferase

Systematic name: 3'-phosphoadenylyl-sulfate:quercetin-3-sulfate 4'-sulfonotransferase

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 121855-12-7


1. Varin, L. and Ibrahim, R.K. Partial purification and characterization of 3 flavonol-specific sulfotransferases from Flaveria chloraefolia. Plant Physiol. 90 (1989) 977-981.

[EC created 1992]

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