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 Larsen-Like Syndrome B3gat3 Type. Among its related pathways are heparan sulfate biosynthesis and Chondroitin sulfate/dermatan sulfate 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).