enzymology Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. A ...

, a flavonol-3-O-glucoside L-rhamnosyltransferase () is an

enzyme Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. A ...

that

catalyzes Catalysis () is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst (). Catalysts are not consumed in the reaction and remain unchanged after it. If the reaction is rapid and the catalyst recyc ...

the

chemical reaction A chemical reaction is a process that leads to the IUPAC nomenclature for organic transformations, chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the pos ...

:UDP-L-rhamnose + a flavonol 3-O-D-glucoside

\rightleftharpoons

UDP + a flavonol 3-O- eta-L-rhamnosyl-(1->6)-beta-D-glucoside Thus, the two substrates of this enzyme are UDP-L-rhamnose and flavonol 3-O-D-glucoside, whereas its two

products Product may refer to: Business * Product (business), an item that serves as a solution to a specific consumer problem. * Product (project management), a deliverable or set of deliverables that contribute to a business solution Mathematics * Produ ...

are UDP and flavonol 3-O-[beta-L-rhamnosyl-(1->6)-beta-D-glucoside">eta-L-rhamnosyl-(1->6)-beta-D-glucoside.html" ;"title="flavonol 3-O-[beta-L-rhamnosyl-(1->6)-beta-D-glucoside">flavonol 3-O-[beta-L-rhamnosyl-(1->6)-beta-D-glucoside This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The List of enzymes, systematic name of this enzyme class is UDP-L-rhamnose:flavonol-3-O-D-glucoside 6''-O-L-rhamnosyltransferase. Other names in common use include uridine diphosphorhamnose-flavonol 3-O-glucoside, rhamnosyltransferase, and UDP-rhamnose:flavonol 3-O-glucoside rhamnosyltransferase. This enzyme participates in

flavonoid biosynthesis Flavonoids are synthesized by the phenylpropanoid metabolic pathway in which the amino acid phenylalanine is used to produce 4-coumaroyl-CoA. This can be combined with malonyl-CoA to yield the true backbone of flavonoids, a group of compounds ...

References

* * EC 2.4.1 Enzymes of unknown structure Flavonols metabolism {{2.4-enzyme-stub