Term Name:	galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase activity
Synonyms:	glucuronosyltransferase I activity, UDP-glucuronate:3-beta-D-galactosyl-4-beta-D-galactosyl-O-beta-D-xylosyl-protein D-glucuronosyltransferase activity, UDPglucuronate:3-beta-D-galactosyl-4-beta-D-galactosyl-O-beta-D-xylosyl-protein D-glucuronosyltransferase activity, uridine diphosphate glucuronic acid:acceptor glucuronosyltransferase activity
Definition:	Catalysis of the reaction: 3-O-(beta-D-galactosyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-xylosyl)-L-seryl-[protein] + UDP-alpha-D-glucuronate = 3-O-(beta-D-GlcA-(1->3)-beta-D-Gal-(1->3)-beta-D-Gal-(1->4)-beta-D-Xyl)-L-seryl-[protein] + H+ + UDP.
Ontology:	GO: Molecular Function [GO:0015018]    QuickGO    AmiGO