dioxygenase activity 3-butenylglucosinolate 2-hydroxylase activity https://github.com/geneontology/go-ontology/issues/30193 Catalysis of the reaction: gluconapin + a reduced electron acceptor + O2 = xi-progoitrin + an oxidized electron acceptor + H2O. GO:0062131 dph 2019-06-24T16:45:18Z MetaCyc:RXNQT-4343 molecular_function But-3-enyl Glucosinolate-2-hydroxylase activity RHEA:60628