| Entrez gene ID | | 8703 |
| Official gene symbol | | B4GALT3 |
| Full name | | UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 3 |
| Aliases | | ,beta4Gal-T3, |
| Gene summary | | This gene is one of seven beta-1,4-galactosyltransferase (beta4GalT) genes. They encode type II membrane-bound glycoproteins that appear to have exclusive specificity for the donor substrate UDP-galactose; all transfer galactose in a beta1,4 linkage to similar acceptor sugars: GlcNAc, Glc, and Xyl. Each beta4GalT has a distinct function in the biosynthesis of different glycoconjugates and saccharide structures. As type II membrane proteins, they have an N-terminal hydrophobic signal sequence that directs the protein to the Golgi apparatus and which then remains uncleaved to function as a transmembrane anchor. By sequence similarity, the beta4GalTs form four groups: beta4GalT1 and beta4GalT2, beta4GalT3 and beta4GalT4, beta4GalT5 and beta4GalT6, and beta4GalT7. This gene encodes an enzyme that may be mainly involved in the synthesis of the first N-acetyllactosamine unit of poly-N-acetyllactosamine chains. [provided by RefSeq] |
| Location | | Chromosome: 1 Locus: 1q21-q23 |
| Gene position | | 161147314 - 161141101 Map Viewer |
| Gene orientation | | minus |
| Gene size | | 6214 bp |
| Gene sequence |
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| OMIM ID | | 604014 |
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