Aliases for B3GAT3 Gene
External Ids for B3GAT3 Gene
Previous GeneCards Identifiers for B3GAT3 Gene
The protein encoded by this gene is a member of the glucuronyltransferase gene family, enzymes that exhibit strict acceptor specificity, recognizing nonreducing terminal sugars and their anomeric linkages. This gene product catalyzes the formation of the glycosaminoglycan-protein linkage by way of a glucuronyl transfer reaction in the final step of the biosynthesis of the linkage region of proteoglycans. A pseudogene of this gene has been identified on chromosome 3. [provided by RefSeq, Dec 2013]
GeneCards Summary for B3GAT3 Gene
B3GAT3 (Beta-1,3-Glucuronyltransferase 3) is a Protein Coding gene. Diseases associated with B3GAT3 include Multiple Joint Dislocations, Short Stature, And Craniofacial Dysmorphism With Or Without Congenital Heart Defects and Retinitis Pigmentosa. Among its related pathways are Chondroitin sulfate/dermatan sulfate metabolism and Glycosaminoglycan metabolism. Gene Ontology (GO) annotations related to this gene include glucuronosyltransferase activity and galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase activity. An important paralog of this gene is B3GAT1.
UniProtKB/Swiss-Prot Summary for B3GAT3 Gene
Glycosaminoglycans biosynthesis (PubMed:25893793). Involved in forming the linkage tetrasaccharide present in heparan sulfate and chondroitin sulfate. Transfers a glucuronic acid moiety from the uridine diphosphate-glucuronic acid (UDP-GlcUA) to the common linkage region trisaccharide Gal-beta-1,3-Gal-beta-1,4-Xyl covalently bound to a Ser residue at the glycosaminylglycan attachment site of proteoglycans. Can also play a role in the biosynthesis of l2/HNK-1 carbohydrate epitope on glycoproteins. Shows strict specificity for Gal-beta-1,3-Gal-beta-1,4-Xyl, exhibiting negligible incorporation into other galactoside substrates including Galbeta1-3Gal beta1-O-benzyl, Galbeta1-4GlcNAc and Galbeta1-4Glc. Stimulates 2-phosphoxylose phosphatase activity of PXYLP1 in presence of uridine diphosphate-glucuronic acid (UDP-GlcUA) during completion of linkage region formation (PubMed:24425863).