IUBMB Enzyme Nomenclature


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 reaction click here.

Glossary: 4-hydroxycinnamoyl-CoA = 4-coumaroyl-CoA

Systematic name: 4-hydroxycinnamoyl-CoA:anthocyanidin 3,5-diglucoside 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, PDB, 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. [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. [PMID: 9881162]

[EC created 1999, modified 2013]

Return to EC 2.3.1 home page
Return to EC 2.3 home page
Return to EC 2 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page