ⓘ Galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase. In enzymology, a galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase is an enzy ..

Galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase

ⓘ Galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase

In enzymology, a galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase is an enzyme that catalyzes the chemical reaction

UDP-glucuronate + 3-beta-D-galactosyl-4-beta-D-galactosyl-O-beta-D-xylosylprotein ⇌ {\displaystyle \rightleftharpoons } UDP + 3-beta-D-glucuronosyl-3-beta-D-galactosyl-4-beta-D-galactosyl-O- beta-D-xylosylprotein

Thus, the two substrates of this enzyme are UDP-glucuronate and 3-beta-D-galactosyl-4-beta-D-galactosyl-O-beta-D-xylosylprotein, whereas its 3 products are UDP, 3-beta-D-glucuronosyl-3-beta-D-galactosyl-4-beta-D-galactosyl-O-, and beta-D-xylosylprotein.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-glucuronate:3-beta-D-galactosyl-4-beta-D-galactosyl-O-beta-D-xyl osyl-protein D-glucuronosyltransferase. Other names in common use include glucuronosyltransferase I, and uridine diphosphate glucuronic acid:acceptor glucuronosyltransferase. This enzyme participates in chondroitin sulfate biosynthesis and glycan structures - biosynthesis 1. It employs one cofactor, manganese.

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