quercetin-3-sulfate 4'-sulfotransferase activity
3'-phosphoadenylyl-sulfate:quercetin-3-sulfate 4'-sulfotransferase activity
related
PAPS:flavonol 3-sulfate 4'-sulfotransferase activity
related
flavonol 4'-sulfotransferase activity
related
quercetin-3-sulphate 4'-sulphotransferase activity
exact
Catalysis of the reaction: 3'-phospho-5'-adenylyl sulfate + quercetin 3-sulfate = adenosine 3',5'-diphosphate + H+ + quercetin 3,4'-disulfate.
GO:0008146
sulfotransferase activity
is_a