Aliases for B3GALT1 Gene
External Ids for B3GALT1 Gene
Previous GeneCards Identifiers for B3GALT1 Gene
This gene is a member of the beta-1,3-galactosyltransferase (beta3GalT) gene family. This family encodes type II membrane-bound glycoproteins with diverse enzymatic functions using different donor substrates (UDP-galactose and UDP-N-acetylglucosamine) and different acceptor sugars (N-acetylglucosamine, galactose, N-acetylgalactosamine). The beta3GalT genes are distantly related to the Drosophila Brainiac gene and have the protein coding sequence contained in a single exon. The beta3GalT proteins also contain conserved sequences not found in the beta4GalT or alpha3GalT proteins. The carbohydrate chains synthesized by these enzymes are designated as type 1, whereas beta4GalT enzymes synthesize type 2 carbohydrate chains. The ratio of type 1:type 2 chains changes during embryogenesis. By sequence similarity, the beta3GalT genes fall into at least two groups: beta3GalT4 and 4 other beta3GalT genes (beta3GalT1-3, beta3GalT5). This gene is expressed exclusively in the brain. The encoded protein shows strict donor substrate specificity for UDP-galactose. [provided by RefSeq, Jul 2008]
GeneCards Summary for B3GALT1 Gene
B3GALT1 (UDP-Gal:BetaGlcNAc Beta 1,3-Galactosyltransferase, Polypeptide 1) is a Protein Coding gene. Among its related pathways are Metabolism and Glycosphingolipid biosynthesis - lacto and neolacto series. GO annotations related to this gene include galactosyltransferase activity and UDP-galactose:beta-N-acetylglucosamine beta-1,3-galactosyltransferase activity. An important paralog of this gene is B3GNT5.
UniProtKB/Swiss-Prot for B3GALT1 Gene
Beta-1,3-galactosyltransferase that transfers galactose from UDP-galactose to substrates with a terminal beta-N-acetylglucosamine (beta-GlcNAc) residue. Involved in the biosynthesis of the carbohydrate moieties of glycolipids and glycoproteins. Inactive towards substrates with terminal alpha-N-acetylglucosamine (alpha-GlcNAc) or alpha-N-acetylgalactosamine (alpha-GalNAc) residues.