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EC 2.3.1.172 Details
EC number
2.3.1.172
Accepted name
anthocyanin 5-O-glucoside 6′′′-O-malonyltransferase
Reaction
malonyl-CoA + pelargonidin 3-O-(6-caffeoyl-β-D-glucoside) 5-O-β-D-glucoside = CoA + 4′′′-demalonylsalvianin
Systematic name
malonyl-CoA:pelargonidin-3-O-(6-caffeoyl-β-D-glucoside)-5-O-β-D-glucoside 6′′′-O-malonyltransferase
CAS registry number
380229-66-3
Comment
Specific for the penultimate step in salvianin biosynthesis. The enzyme also catalyses the malonylation of shisonin to malonylshisonin [cyanidin 3-O-(6′′-O-p-coumaryl-β-D-glucoside)-5-(6′′′-O-malonyl-β-D-glucoside)]. The compounds 4′′′-demalonylsalvianin, salvianin, pelargonidin 3,5-diglucoside and delphinidin 3,5-diglucoside cannot act as substrates.
History
created 2004
EC Tree
2.3.1.55 created 1976, deleted 1999
2.3.1.120 created 1990, deleted 1992
2.3.1.124 created 1990, deleted 1992