Homo sapiens Protein: GALNT9
Summary
InnateDB Protein IDBP-235616.7
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol GALNT9
Protein Name UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 9 (GalNAc-T9)
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000380488
InnateDB Gene IDBG-65443 (GALNT9)
Protein Structure
UniProt Annotation
Function Catalyzes the initial reaction in O-linked oligosaccharide biosynthesis, the transfer of an N-acetyl-D- galactosamine residue to a serine or threonine residue on the protein receptor. Does not glycosylate apomucin or SDC3.
Subcellular Localization Golgi apparatus membrane {ECO:0000250}; Single-pass type II membrane protein {ECO:0000250}.
Disease Associations
Tissue Specificity Specifically expressed in brain. Not expressed in heart, placenta, lung, liver, skeletal muscle, kidney, pancreas, spleen, thymus, prostate, testis, ovary, small intestine, colon and leukocyte. In brain, it is expressed in cerebellum, frontal lobe, temporal lobe, putamen and spinal cord, weakly expressed in cerebral cortex. Not expressed in medulla and occipital pole. {ECO:0000269PubMed:10978536}.
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:0004653 polypeptide N-acetylgalactosaminyltransferase activity
GO:0046872 metal ion binding
Biological Process
GO:0006493 protein O-linked glycosylation
GO:0016266 O-glycan processing
GO:0043687 post-translational protein modification
GO:0044267 cellular protein metabolic process
Cellular Component
GO:0000139 Golgi membrane
GO:0016021 integral component of membrane
Protein Structure and Domains
PDB ID
InterPro IPR000772 Ricin B lectin domain
IPR029044 Nucleotide-diphospho-sugar transferases
PFAM PF00652
PF14200
PRINTS
PIRSF
SMART SM00458
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q9HCQ5
PhosphoSite PhosphoSite-Q9HCQ5
TrEMBL F5H557
UniProt Splice Variant
Entrez Gene 50614
UniGene Hs.301062
RefSeq NP_068580
HUGO HGNC:4131
OMIM 606251
CCDS CCDS41866
HPRD
IMGT
EMBL AB040672 AC138466 AC148477 AC232989 AF458594 BC093817 BC093819
GenPept AAH93817 AAH93819 AAM49722 BAB13699