The Enzyme Database

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Accepted name: flavanone 7-O-glucoside 2′′-O-β-L-rhamnosyltransferase
Reaction: UDP-β-L-rhamnose + a flavanone 7-O-β-D-glucoside = UDP + a flavanone 7-O-[α-L-rhamnosyl-(1→2)-β-D-glucoside]
For diagram of apigenin derivatives biosynthesis, click here, for diagram of luteolin derivatives biosynthesis, click here and for diagram of naringenin derivatives biosynthesis, click here
Glossary: UDP-β-L-rhamnose = UDP-6-deoxy-β-L-mannose
Other name(s): UDP-rhamnose:flavanone-7-O-glucoside-2′′-O-rhamnosyltransferase; 1→2 UDP-rhamnosyltransferase; UDP-L-rhamnose:flavanone-7-O-glucoside 2′′-O-β-L-rhamnosyltransferase
Systematic name: UDP-β-L-rhamnose:flavanone-7-O-glucoside 2′′-O-α-L-rhamnosyltransferase
Comments: Acts on the 7-O-glucoside of naringenin and hesperetin, also the flavone 7-O-glucosides of luteolin and apigenin.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 125752-89-8
1.  Bar-Peled, M., Lewinsohn, E., Fluhr, R. and Gressel, J. UDP-rhamnose:flavanone-7-O-glucoside-2′′-O-rhamnosyltransferase. Purification and characterization of an enzyme catalyzing the production of bitter compounds in citrus. J. Biol. Chem. 266 (1991) 20953–20959. [PMID: 1939145]
[EC created 2004]

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