IUBMB Enzyme Nomenclature


Accepted name: quercetin-3,3'-bissulfate 7-sulfotransferase

Reaction: 3'-phosphoadenylyl sulfate + quercetin 3,3'-bissulfate = adenosine 3',5'-bisphosphate + quercetin 3,7,3'-trissulfate

For diagram click here.

Glossary: 3'-phosphoadenylyl sulfate = PAPS

Other names: flavonol 7-sulfotransferase; 7-sulfotransferase; PAPS:flavonol 3,3'/3,4'-disulfate 7-sulfotransferase; 3'-phosphoadenylyl-sulfate:quercetin-3,3'-bissulfate 7-sulfotransferase

Systematic name: 3'-phosphoadenylyl-sulfate:quercetin-3,3'-bissulfate 7-sulfonotransferase

Comments: Quercetin 3,4'-bissulfate can also act as acceptor.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 121855-13-8


1. Varin, L. Enzymatic synthesis of sulfated flavonoids in Flaveria spp. Bull. Liaison-Groupe Polyphenols 14 (1988) 248-257.

[EC created 1992]

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