The Enzyme Database

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Accepted name: anthocyanin 5-(6′′′-hydroxycinnamoyltransferase)
Reaction: 4-hydroxycinnamoyl-CoA + an anthocyanidin 3,5-di-O-β-D-glucoside = CoA + anthocyanidin 3-O-β-D-glucoside 5-O-β-D-(6-O-4-hydroxycinnamoylglucoside)
For diagram of anthocyanidin glucoside biosynthesis, click here
Glossary: 4-hydroxycinnamoyl-CoA = 4-coumaroyl-CoA
Systematic name: 4-hydroxycinnamoyl-CoA:anthocyanidin 3,5-di-O-β-D-glucoside 5-O-glucoside-6′′′-O-4-hydroxycinnamoyltransferase
Comments: Isolated from the plant Gentiana triflora. Transfers the hydroxycinnamoyl group only to the C-5 glucoside of anthocyanin. Caffeoyl-CoA, but not malonyl-CoA, can substitute as an acyl donor.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 198841-53-1
1.  Fujiwara, H., Tanaka, Y., Fukui, Y., Nakao, M., Ashikari, T., Kusumi, T. Anthocyanin 5-aromatic acyltransferase from Gentiana triflora. Purification, characterization and its role in anthocyanin biosynthesis. Eur. J. Biochem. 249 (1997) 45–51. [DOI] [PMID: 9363752]
2.  Fujiwara, H., Tanaka, Y., Yonekura-Sakakibara, K., Fukuchi-Mizutani, M., Nakao, M., Fukui, Y., Yamaguchi, M., Ashikari, T. and Kusumi, T. cDNA cloning, gene expression and subcellular localization of anthocyanin 5-aromatic acyltransferase from Gentiana triflora. Plant J. 16 (1998) 421–431. [DOI] [PMID: 9881162]
[EC created 1999, modified 2013]

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