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
References:
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.