Homo sapiens Protein: B4GALNT3
Summary
InnateDB Protein IDBP-11418.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol B4GALNT3
Protein Name beta-1,4-N-acetyl-galactosaminyl transferase 3
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000266383
InnateDB Gene IDBG-11416 (B4GALNT3)
Protein Structure
UniProt Annotation
Function Transfers N-acetylgalactosamine (GalNAc) from UDP-GalNAc to N-acetylglucosamine-beta-benzyl with a beta-1,4-linkage to form N,N'-diacetyllactosediamine, GalNAc-beta-1,4-GlcNAc structures in N-linked glycans and probably O-linked glycans. Mediates the N,N'- diacetyllactosediamine formation on gastric mucosa. {ECO:0000269PubMed:16728562}.
Subcellular Localization Golgi apparatus, Golgi stack membrane {ECO:0000269PubMed:16728562}; Single-pass type II membrane protein {ECO:0000269PubMed:16728562}. Note=Localizes to apical Golgi.
Disease Associations
Tissue Specificity Highly expressed in testis, colon and stomach. Weakly expressed in other tissues. {ECO:0000269PubMed:12966086}.
Comments
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:0008376 acetylgalactosaminyltransferase activity
GO:0033842 N-acetyl-beta-glucosaminyl-glycoprotein 4-beta-N-acetylgalactosaminyltransferase activity
Biological Process
GO:0008152 metabolic process
Cellular Component
GO:0016021 integral component of membrane
GO:0032580 Golgi cisterna membrane
Protein Structure and Domains
PDB ID
InterPro IPR008428 Chondroitin N-acetylgalactosaminyltransferase
IPR011658 PA14
IPR029044 Nucleotide-diphospho-sugar transferases
PFAM PF05679
PF07691
PRINTS
PIRSF
SMART SM00758
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q6L9W6
PhosphoSite PhosphoSite-Q6L9W6
TrEMBL
UniProt Splice Variant
Entrez Gene 283358
UniGene Hs.504416
RefSeq NP_775864
HUGO HGNC:24137
OMIM 612220
CCDS CCDS8504
HPRD 12514
IMGT
EMBL AB089940 AC005844 AC006205 AK097681 AK131277
GenPept BAC05141 BAD02449 BAD18454