B3GALT5

Beta-1,3-galactosyltransferase 5 is an enzyme that in humans is encoded by the B3GALT5 gene.

B3GALT5
Identifiers
Aliases	B3GALT5, B3GalT-V, B3GalTx, B3T5, GLCT5, beta-1,3-GalTase 5, beta-3-Gx-T5, beta3Gal-T5, beta-1,3-galactosyltransferase 5
External IDs	OMIM: 604066; MGI: 2136878; HomoloGene: 13230; GeneCards: B3GALT5; OMA:B3GALT5 - orthologs
Gene location (Human) Chr. Chromosome 21 (human) Band 21q22.2 Start 39,556,442 bp End 39,673,137 bp
Gene location (Mouse) Chr. Chromosome 16 (mouse) Band 16|16 C4 Start 96,037,001 bp End 96,121,059 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in palpebral conjunctiva mucosa of sigmoid colon jejunal mucosa rectum duodenum mucosa of transverse colon amniotic fluid sperm gonad mucosa of ileum Top expressed in left colon interventricular septum lumbar subsegment of spinal cord anterior horn of spinal cord facial motor nucleus visual cortex primary visual cortex superior frontal gyrus dentate gyrus of hippocampal formation granule cell deep cerebellar nuclei More reference expression data BioGPS More reference expression data
Gene ontology Molecular function transferase activity UDP-galactose:beta-N-acetylglucosamine beta-1,3-galactosyltransferase activity galactosyltransferase activity glycosyltransferase activity acetylgalactosaminyltransferase activity Cellular component integral component of membrane Golgi membrane Golgi apparatus endoplasmic reticulum membrane Biological process protein glycosylation protein N-linked glycosylation oligosaccharide biosynthetic process Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 10317 93961 Ensembl ENSG00000183778 ENSMUSG00000074892 UniProt Q9Y2C3 Q9JI67 RefSeq (mRNA) NM_033173 NM_001278650 NM_006057 NM_033170 NM_033171 NM_033172 NM_001356336 NM_001356338 NM_001356339 NM_001122993 NM_033149 NM_001358389 NM_001358390 RefSeq (protein) NP_001265579 NP_006048 NP_149360 NP_149361 NP_149362 NP_001343265 NP_001343267 NP_001343268 NP_001116465 NP_149161 NP_001345318 NP_001345319 Location (UCSC) Chr 21: 39.56 – 39.67 Mb Chr 16: 96.04 – 96.12 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

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 encodes the most probable candidate for synthesis of the type 1 Lewis antigens which are frequently found to be elevated in gastrointestinal and pancreatic cancers. The encoded protein is inactive with N-linked glycoproteins and functions in mucin glycosylation. Five transcript variants have been described which differ in the 5' UTR. All transcript variants encode an identical protein.

Further reading

• Amado M, Almeida R, Schwientek T, Clausen H (2000). "Identification and characterization of large galactosyltransferase gene families: galactosyltransferases for all functions". Biochim. Biophys. Acta. 1473 (1): 35–53. doi:10.1016/S0304-4165(99)00168-3. PMID 10580128.
• Kalyanaraman VS, Rodriguez V, Veronese F, et al. (1990). "Characterization of the secreted, native gp120 and gp160 of the human immunodeficiency virus type 1". AIDS Res. Hum. Retroviruses. 6 (3): 371–80. doi:10.1089/aid.1990.6.371. PMID 2187500.
• Pal R, Hoke GM, Sarngadharan MG (1989). "Role of oligosaccharides in the processing and maturation of envelope glycoproteins of human immunodeficiency virus type 1". Proc. Natl. Acad. Sci. U.S.A. 86 (9): 3384–8. Bibcode:1989PNAS...86.3384P. doi:10.1073/pnas.86.9.3384. PMC 287137. PMID 2541446.
• Dewar RL, Vasudevachari MB, Natarajan V, Salzman NP (1989). "Biosynthesis and processing of human immunodeficiency virus type 1 envelope glycoproteins: effects of monensin on glycosylation and transport". J. Virol. 63 (6): 2452–6. doi:10.1128/jvi.63.6.2452-2456.1989. PMC 250699. PMID 2542563.
• Kozarsky K, Penman M, Basiripour L, et al. (1989). "Glycosylation and processing of the human immunodeficiency virus type 1 envelope protein". J. Acquir. Immune Defic. Syndr. 2 (2): 163–9. PMID 2649653.
• Robinson WE, Montefiori DC, Mitchell WM (1988). "Evidence that mannosyl residues are involved in human immunodeficiency virus type 1 (HIV-1) pathogenesis". AIDS Res. Hum. Retroviruses. 3 (3): 265–82. doi:10.1089/aid.1987.3.265. PMID 2829950.
• Zhou D, Berger EG, Hennet T (1999). "Molecular cloning of a human UDP-galactose:GlcNAcbeta1,3GalNAc beta1, 3 galactosyltransferase gene encoding an O-linked core3-elongation enzyme". Eur. J. Biochem. 263 (2): 571–6. doi:10.1046/j.1432-1327.1999.00541.x. PMID 10406968.
• Hattori M, Fujiyama A, Taylor TD, et al. (2000). "The DNA sequence of human chromosome 21". Nature. 405 (6784): 311–9. Bibcode:2000Natur.405..311H. doi:10.1038/35012518. PMID 10830953.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Dunn CA, Medstrand P, Mager DL (2004). "An endogenous retroviral long terminal repeat is the dominant promoter for human β1,3-galactosyltransferase 5 in the colon". Proc. Natl. Acad. Sci. U.S.A. 100 (22): 12841–6. doi:10.1073/pnas.2134464100. PMC 240706. PMID 14534330.
• Sato T, Furukawa K (2004). "Transcriptional regulation of the human beta-1,4-galactosyltransferase V gene in cancer cells: essential role of transcription factor Sp1". J. Biol. Chem. 279 (38): 39574–83. doi:10.1074/jbc.M405805200. PMID 15263012.
• Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Dunn CA, van de Lagemaat LN, Baillie GJ, Mager DL (2006). "Endogenous retrovirus long terminal repeats as ready-to-use mobile promoters: the case of primate beta3GAL-T5". Gene. 364: 2–12. doi:10.1016/j.gene.2005.05.045. PMID 16112824.
• Hu YH, Warnatz HJ, Vanhecke D, et al. (2006). "Cell array-based intracellular localization screening reveals novel functional features of human chromosome 21 proteins". BMC Genomics. 7: 155. doi:10.1186/1471-2164-7-155. PMC 1526728. PMID 16780588.

External links

• B3GALT5 human gene location in the UCSC Genome Browser.
• B3GALT5 human gene details in the UCSC Genome Browser.