The Enzyme Database

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EC 2.4.2.25     
Accepted name: flavone apiosyltransferase
Reaction: UDP-α-D-apiose + apigenin 7-O-β-D-glucoside = UDP + apigenin 7-O-[β-D-apiosyl-(1→2)-β-D-glucoside]
For diagram of apigenin derivatives biosynthesis, click here
Glossary: apigenin = 4′,5,7-trihydroxyflavone
β-D-apiose = (2R,3R,4R)-4-(hydroxymethyl)tetrahydrofuran-2,3,4-triol
Other name(s): uridine diphosphoapiose-flavone apiosyltransferase; UDP-apiose:7-O-(β-D-glucosyl)-flavone apiosyltransferase
Systematic name: UDP-apiose:5,4′-dihydroxyflavone 7-O-β-D-glucoside 2′′-O-β-D-apiofuranosyltransferase
Comments: 7-O-β-D-Glucosides of a number of flavonoids and of 4-substituted phenols can act as acceptors.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 37332-49-3
References:
1.  Ortmann, R., Sutter, A. and Grisebach, H. Purification and properties of UDPapiose: 7-O-(β-D-glucosyl)-flavone apiosyltransferase from cell suspension cultures of parsley. Biochim. Biophys. Acta 289 (1972) 293–302. [PMID: 4650134]
[EC 2.4.2.25 created 1976]
 
 


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