Homo sapiens Gene: B4GALT4
Summary
InnateDB Gene IDBG-51106.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol B4GALT4
Gene Name UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
Synonyms B4Gal-T4; beta4Gal-T4
Species Homo sapiens
Ensembl Gene ENSG00000121578
Encoded Proteins
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 4
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez 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. The enzyme encoded by this gene appears to mainly play a role in glycolipid biosynthesis. Two alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2008]
Gene Information
Type Protein coding
Genomic Location Chromosome 3:119211732-119241103
Strand Reverse strand
Band q13.32
Transcripts
ENST00000359213 ENSP00000352144
ENST00000393765 ENSP00000377360
ENST00000483209 ENSP00000420161
ENST00000467604 ENSP00000417226
ENST00000471675 ENSP00000417527
ENST00000480814 ENSP00000420665
ENST00000460321
ENST00000491906 ENSP00000419919
ENST00000475803 ENSP00000417188
ENST00000479150 ENSP00000417958
ENST00000470111 ENSP00000420535
ENST00000493932 ENSP00000418436
ENST00000473887 ENSP00000419916
ENST00000459778 ENSP00000419275
ENST00000459820 ENSP00000418278
ENST00000460395
ENST00000472471
ENST00000484595
ENST00000487579
ENST00000479308
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 0 experimentally validated interaction(s) in this database.
Gene Ontology

Molecular Function
Accession GO Term
GO:0003945 N-acetyllactosamine synthase activity
GO:0008378 galactosyltransferase activity
GO:0016757 transferase activity, transferring glycosyl groups
GO:0046872 metal ion binding
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0006643 membrane lipid metabolic process
GO:0018146 keratan sulfate biosynthetic process
GO:0018279 protein N-linked glycosylation via asparagine
GO:0030203 glycosaminoglycan metabolic process
GO:0042339 keratan sulfate metabolic process
GO:0043687 post-translational protein modification
GO:0044267 cellular protein metabolic process
GO:0044281 small molecule metabolic process
Cellular Component
GO:0000139 Golgi membrane
GO:0016021 integral component of membrane
GO:0032580 Golgi cisterna membrane
Orthologs
Species
Mus musculus
Bos taurus
Gene ID
Gene Order
Not yet available
Pathways
NETPATH
REACTOME
N-Glycan antennae elongation pathway
Transport to the Golgi and subsequent modification pathway
Asparagine N-linked glycosylation pathway
Keratan sulfate biosynthesis pathway
Mucopolysaccharidoses pathway
Post-translational protein modification pathway
Myoclonic epilepsy of Lafora pathway
Defective B4GALT7 causes EDS, progeroid type pathway
Defective CHST6 causes MCDC1 pathway
Keratan sulfate/keratin metabolism pathway
MPS VI - Maroteaux-Lamy syndrome pathway
Defective PAPSS2 causes SEMD-PA pathway
Metabolism of carbohydrates pathway
MPS IIID - Sanfilippo syndrome D pathway
N-glycan antennae elongation in the medial/trans-Golgi pathway
Defective SLC26A2 causes chondrodysplasias pathway
MPS IX - Natowicz syndrome pathway
Defective EXT1 causes exostoses 1, TRPS2 and CHDS pathway
Metabolism of proteins pathway
Defective CHST14 causes EDS, musculocontractural type pathway
MPS IV - Morquio syndrome B pathway
Defective B3GAT3 causes JDSSDHD pathway
Defective CHST3 causes SEDCJD pathway
MPS IV - Morquio syndrome A pathway
Defective EXT2 causes exostoses 2 pathway
Diseases associated with glycosaminoglycan metabolism pathway
MPS II - Hunter syndrome pathway
Defective B4GALT1 causes B4GALT1-CDG (CDG-2d) pathway
Glycosaminoglycan metabolism pathway
Diseases of glycosylation pathway
MPS VII - Sly syndrome pathway
Defective CHSY1 causes TPBS pathway
Metabolism pathway
MPS I - Hurler syndrome pathway
MPS IIIA - Sanfilippo syndrome A pathway
MPS IIIC - Sanfilippo syndrome C pathway
Disease pathway
Glycogen storage diseases pathway
MPS IIIB - Sanfilippo syndrome B pathway
KEGG
Glycosphingolipid biosynthesis pathway
Glycosaminoglycan biosynthesis pathway
INOH
PID NCI
Cross-References
SwissProt
TrEMBL
UniProt Splice Variant
Entrez Gene
UniGene Hs.13225 Hs.714253
RefSeq NM_003778 NM_212543 XM_005247855 XM_005247857 XM_006713798 XM_006713799 XM_006713800 XM_006713801
HUGO
OMIM
CCDS CCDS2986
HPRD 04930
IMGT
EMBL
GenPept
RNA Seq Atlas