Homo sapiens Gene: B3GNT3
InnateDB Gene IDBG-37160.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol B3GNT3
Gene Name UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 3
Synonyms B3GAL-T8; B3GN-T3; B3GNT-3; beta3Gn-T3; HP10328; TMEM3;
Species Homo sapiens
Ensembl Gene ENSG00000179913
Encoded Proteins
UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 3
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez Gene
Summary This gene encodes a member of the beta-1,3-N-acetylglucosaminyltransferase family. This enzyme is a type II transmembrane protein and contains a signal anchor that is not cleaved. It prefers the substrates of lacto-N-tetraose and lacto-N-neotetraose, and is involved in the biosynthesis of poly-N-acetyllactosamine chains and the biosynthesis of the backbone structure of dimeric sialyl Lewis a. It plays dominant roles in L-selectin ligand biosynthesis, lymphocyte homing and lymphocyte trafficking. [provided by RefSeq, Jul 2008]
Gene Information
Type Protein coding
Genomic Location Chromosome 19:17794828-17813082
Strand Forward strand
Band p13.11
ENST00000318683 ENSP00000321874
ENST00000599265 ENSP00000471733
ENST00000600777 ENSP00000468914
ENST00000595387 ENSP00000472638
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:0008378 galactosyltransferase activity
GO:0047223 beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,3-N-acetylglucosaminyltransferase activity
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0006486 protein glycosylation
GO:0016266 O-glycan processing
GO:0018146 keratan sulfate biosynthetic process
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:0005794 Golgi apparatus
GO:0005887 integral component of plasma membrane
GO:0016020 membrane
GO:0016021 integral component of membrane
Mus musculus
Bos taurus
Gene ID
Gene Order
SSD Ortholog
Ortholog supports species divergence
Not yet available
SSD Ortholog
Ortholog supports species divergence
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
Keratan sulfate biosynthesis pathway
MPS IIID - Sanfilippo syndrome D pathway
Defective SLC26A2 causes chondrodysplasias pathway
O-linked glycosylation of mucins pathway
O-linked glycosylation 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
Glycosphingolipid biosynthesis pathway
SwissProt Q9Y2A9
TrEMBL M0QX58 M0R199
UniProt Splice Variant
Entrez Gene 10331
UniGene Hs.657825 Hs.69009
RefSeq NM_014256
OMIM 605863
HPRD 10431
EMBL AB015630 AB049585 AC008761 AF293973 AJ130847 AJ278961 AK314323 AY358955 BC066876 BC067423
GenPept AAH66876 AAH67423 AAK00849 AAQ89314 BAA76497 BAB21531 BAG36971 CAC45044 CAC82374
RNA Seq Atlas 10331