Flavanone 7-O-glucoside 2"-O-beta-L-rhamnosyltransferase explained

Flavanone 7-O-glucoside 2"-O-beta-L-rhamnosyltransferase
Ec Number:	2.4.1.236

In enzymology, a flavanone 7-O-glucoside 2"-O-beta-L-rhamnosyltransferase is an enzyme that catalyzes the chemical reaction

UDP-L-rhamnose + a flavanone 7-O-glucoside

\rightleftharpoons UDP + a flavanone 7-O-[beta-L-rhamnosyl-(1->2)-beta-D-glucoside]

Thus, the two substrates of this enzyme are UDP-L-rhamnose and flavanone 7-O-glucoside, whereas its two products are UDP and flavanone 7-O-[beta-L-rhamnosyl-(1->2)-beta-D-glucoside].

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-L-rhamnose:flavanone-7-O-glucoside 2''-O-beta-L-rhamnosyltransferase. Other names in common use include UDP-rhamnose:flavanone-7-O-glucoside-2"-O-rhamnosyltransferase, and 1->2 UDP-rhamnosyltransferase.

References

• Bar-Peled M, Lewinsohn E, Fluhr R, Gressel J . 1991 . UDP-rhamnose:flavanone-7-O-glucoside-2-O-rhamnosyltransferase Purification and characterization of an enzyme catalyzing the production of bitter compounds in citrus | journal = J. Biol. Chem. | volume = 266 | pages = 20953 - 9 | pmid = 1939145 | issue = 31 }}.