Activities in Family	Glycosyltransferases (EC 2.4.-.-); UDP-GlcA: β-1,4-galactosyl-xylosylprotein β-1,3-glucuronosyltransferase (EC 2.4.1.135); UDP-Xyl: xylan β-1,4-xylosyltransferase (EC 2.4.2.-);
Mechanism	Inverting
3D Structure Status	GT-A
External resources	CFG(O-linked); Glymap;
Statistics	GenBank accession (1133); Uniprot accession (35); PDB accession (7); 3D entries (3); cryst (0)

Eukaryota
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)
UDP-GlcA: β-1,4-galactosyl-xylosylprotein β-1,3-glucuronosyltransferase 3 (GlcAT-I;B3GAT3)	2.4.1.135	Homo sapiens	AAH71961.1 AAH07906.1 AAH19832.1 BAA34537.1 BAG60280.1 BAH14599.1 CAA06742.1 CAD61649.1 CAF86894.1 NP_036332.2	B4DNL8 O94766 Q5U676	1FGG[A,B] β-D-Galp-(1-3)-β-D-Galp 2.30 1KWS[A,B] 2.10 3CU0[A,B] β-D-Galp-(1-3)-β-D-Galp6SO3 1.90
UDP-GlcA: galactosylgalactosylxylosylprotein 3-β-glucuronyltransferase 1 (GlcAT-P;B3gat1)	2.4.1.135	Homo sapiens	CAD35119.1 AAH10466.1 BAA96077.1 BAH13084.1 CAD39115.1 CAG33379.1 NP_061114.2 NP_473366.1	Q8ND18 Q9P2W7	1V82[A,B] 1.85 1V83[A,B] 1.90 1V84[A,B] β-D-Galp-(1-4)-α-D-GlcpNAc β-D-Galp-(1-4)-β-D-GlcpNAc 1.82
UDP-GlcA: galactosylgalactosylxylosylprotein 3-β-glucuronosyltransferase 2 (GlcAT-S;B3GAT2)	2.4.1.135	Homo sapiens	AAL57718.1 AAI01164.1 AAI01166.1 AAI13996.1 AAL58977.1 AAS22650.1 AAS22652.1 BAB70889.1 BAB85549.1 BAB85549.2 BAF82707.1 CAB99368.1 CAC29377.1 CAI39582.1 CAI42145.1 EAW48804.1 NP_542780.1	A8K1V3 Q29RV3 Q9NPZ5	2D0J[A,B,C,D] 2.00
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