B4GALT2

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B4GALT2
Identifiers
Aliases B4GALT2, B4Gal-T2, B4Gal-T3, beta4Gal-T2, beta-1,4-galactosyltransferase 2
External IDs MGI: 1858493 HomoloGene: 2804 GeneCards: B4GALT2
RNA expression pattern
PBB GE B4GALT2 209413 at fs.png
More reference expression data
Orthologs
Species Human Mouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_030587
NM_001005417
NM_003780

NM_001253381
NM_017377

RefSeq (protein)

NP_001005417
NP_003771
NP_085076

NP_001240310.1
NP_059073.1
NP_001240310
NP_059073

Location (UCSC) Chr 1: 43.98 – 43.99 Mb Chr 4: 117.87 – 117.88 Mb
PubMed search [1] [2]
Wikidata
View/Edit Human View/Edit Mouse

Beta-1,4-galactosyltransferase 2 is an enzyme that in humans is encoded by the B4GALT2 gene.[3][4][5]

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. The enzyme encoded by this gene synthesizes N-acetyllactosamine in glycolipids and glycoproteins. Its substrate specificity is affected by alpha-lactalbumin but it is not expressed in lactating mammary tissue. Two transcript variants encoding the same protein have been found for this gene.[5]

References[edit]

  1. ^ "Human PubMed Reference:". 
  2. ^ "Mouse PubMed Reference:". 
  3. ^ Almeida R, Amado M, David L, Levery SB, Holmes EH, Merkx G, van Kessel AG, Rygaard E, Hassan H, Bennett E, Clausen H (Jan 1998). "A family of human beta4-galactosyltransferases. Cloning and expression of two novel UDP-galactose:beta-n-acetylglucosamine beta1, 4-galactosyltransferases, beta4Gal-T2 and beta4Gal-T3". J Biol Chem. 272 (51): 31979–91. doi:10.1074/jbc.272.51.31979. PMID 9405390. 
  4. ^ Lo NW, Shaper JH, Pevsner J, Shaper NL (Aug 1998). "The expanding beta 4-galactosyltransferase gene family: messages from the databanks". Glycobiology. 8 (5): 517–26. doi:10.1093/glycob/8.5.517. PMID 9597550. 
  5. ^ a b "Entrez Gene: B4GALT2 UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 2". 

External links[edit]

Further reading[edit]