The Enzyme Database

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Accepted name: delphinidin 3′,5′-O-glucosyltransferase
Reaction: 2 UDP-glucose + delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside = 2 UDP + delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside-3′,5′-di-O-β-D-glucoside (overall reaction)
(1a) UDP-glucose + delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside = UDP + delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside-3′-O-β-D-glucoside
(1b) UDP-glucose + delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside-3′-O-β-D-glucoside = UDP + delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside-3′,5′-di-O-β-D-glucoside
For diagram of anthocyanidin acylglucoside biosynthesis, click here
Glossary: delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside-3′,5′-di-O-β-D-glucoside = ternatin C5
Other name(s): UDP-glucose:anthocyanin 3′,5′-O-glucosyltransferase; UA3′5’GZ
Systematic name: UDP-glucose:delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside 3′-O-glucosyltransferase
Comments: Ternatins are a group of polyacetylated delphinidin glucosides that confer blue color to the petals of Clitoria ternatea (butterfly pea). This enzyme catalyses two reactions in the biosynthesis of ternatin C5: the conversion of delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside to delphinidin 3-O-(6′′-O-malonyl)-β-D-glucoside-3′-O-β-D-glucoside, followed by the conversion of the later to ternatin C5, by transferring two glucosyl groups in a stepwise manner [1].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Kogawa, K., Kato, N., Kazuma, K., Noda, N. and Suzuki, M. Purification and characterization of UDP-glucose: anthocyanin 3′,5′-O-glucosyltransferase from Clitoria ternatea. Planta 226 (2007) 1501–1509. [DOI] [PMID: 17668234]
[EC created 2009]

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