label: quercetin-3,3'-bissulfate 7-sulfotransferase activity
label_lc: quercetin-3,3'-bissulfate 7-sulfotransferase activity
description: "Catalysis of the reaction: quercetin 3,3'-bissulfate + 3'-phosphoadenosine 5'-phosphosulfate = quercetin 3,3',7-trissulfate + adenosine 3',5'-bisphosphate."