======= B4GALT3 ======= == Gene Information == * **Official Symbol**: B4GALT3 * **Official Name**: beta-1,4-galactosyltransferase 3 * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=8703|8703]] * **UniProt**: [[https://www.uniprot.org/uniprot/O60512|O60512]] * **Interactions**: [[https://thebiogrid.org/search.php?search=B4GALT3&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20B4GALT3|Open PubMed]] * **OMIM**: [[https://omim.org/entry/604014|Open OMIM]] == Function Summary == * **Entrez 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. Multiple alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Dec 2010]. * **UniProt Summary**: Responsible for the synthesis of complex-type N-linked oligosaccharides in many glycoproteins as well as the carbohydrate moieties of glycolipids. |Galactosyl T 2| |beta-N-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase activity| |N-acetyllactosamine synthase activity| |galactosylceramide biosynthetic process| |galactolipid biosynthetic process| |glycosylceramide biosynthetic process| |galactosylceramide metabolic process| |galactolipid metabolic process| |glycosylceramide metabolic process| |galactosyltransferase activity| |glycosphingolipid biosynthetic process| |keratan sulfate biosynthetic process| |keratan sulfate metabolic process| |ceramide biosynthetic process| |glycolipid biosynthetic process| |glycosphingolipid metabolic process| |ceramide metabolic process| |sphingolipid biosynthetic process| |Golgi cisterna membrane| |glycosaminoglycan biosynthetic process| |mucopolysaccharide metabolic process| |aminoglycan biosynthetic process| |glycolipid metabolic process| |liposaccharide metabolic process| |membrane lipid biosynthetic process| |sphingolipid metabolic process| |glycosaminoglycan metabolic process| |aminoglycan metabolic process| |sulfur compound biosynthetic process| |membrane lipid metabolic process| |macromolecule glycosylation| |protein glycosylation| |glycosylation| |glycoprotein biosynthetic process| |sulfur compound metabolic process| |glycoprotein metabolic process| |carbohydrate metabolic process| |amide biosynthetic process| |lipid biosynthetic process| |carbohydrate derivative biosynthetic process| |Golgi membrane| |cellular amide metabolic process| |cellular lipid metabolic process| |Golgi apparatus| |oxoacid metabolic process| |organic acid metabolic process| |carbohydrate derivative metabolic process| |lipid metabolic process| |organonitrogen compound biosynthetic process| |cellular nitrogen compound biosynthetic process| |cellular macromolecule biosynthetic process| |small molecule metabolic process| |macromolecule biosynthetic process| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp210|LB-100 2μM R05 exp210]]|-1.86| |[[:results:exp227|Cryptotanshinone 12μM R05 exp227]]|1.95| No correlation found to any other genes in chemogenomics. Global Fraction of Cell Lines Where Essential: 0/739 ^Tissue^Fraction Of Cell Lines Where Essential^ |1290807.0|0/1| |909776.0|0/1| |bile duct|0/28| |blood|0/28| |bone|0/26| |breast|0/33| |central nervous system|0/56| |cervix|0/4| |colorectal|0/17| |esophagus|0/13| |fibroblast|0/1| |gastric|0/16| |kidney|0/21| |liver|0/20| |lung|0/75| |lymphocyte|0/16| |ovary|0/26| |pancreas|0/24| |peripheral nervous system|0/16| |plasma cell|0/15| |prostate|0/1| |skin|0/24| |soft tissue|0/9| |thyroid|0/2| |upper aerodigestive|0/22| |urinary tract|0/29| |uterus|0/5| == Essentiality in NALM6 == * **Essentiality Rank**: 12808 * **Expression level (log2 read counts)**: 5.54 {{:chemogenomics:nalm6 dist.png?nolink |}}