In enzymology, a sinapate 1-glucosyltransferase () is an

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

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 recycl ...

the

chemical reaction A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and break ...

: :UDP-glucose + sinapate

\rightleftharpoons

UDP + 1-sinapoyl-D-glucose Thus, the two substrates of this enzyme are

UDP-glucose Uridine diphosphate glucose (uracil-diphosphate glucose, UDP-glucose) is a nucleotide sugar. It is involved in glycosyltransferase reactions in metabolism. Functions UDP-glucose is used in nucleotide sugar metabolism as an activated form of g ...

and sinapate, 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 1-sinapoyl-D-glucose. This enzyme belongs to the family of

glycosyltransferase Glycosyltransferases (GTFs, Gtfs) are enzymes (EC 2.4) that establish natural glycosidic linkages. They catalyze the transfer of saccharide moieties from an activated nucleotide sugar (also known as the " glycosyl donor") to a nucleophilic gl ...

s, specifically the hexosyltransferases. The

systematic name A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature. A semisystematic name or semitrivial ...

of this enzyme class is UDP-glucose:sinapate D-glucosyltransferase. Other names in common use include uridine diphosphoglucose-sinapate glucosyltransferase, UDP-glucose:sinapic acid glucosyltransferase, uridine 5'-diphosphoglucose-hydroxycinnamic acid, and acylglucosyltransferase. This enzyme participates in

phenylpropanoid biosynthesis The biosynthesis of phenylpropanoids involves a number of enzymes. From amino acids to cinnamates In plants, all phenylpropanoids are derived from the amino acids phenylalanine and tyrosine. Phenylalanine ammonia-lyase (PAL, a.k.a. phenylalanine ...

References

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