Homo sapiens Protein: ST8SIA3
Summary
InnateDB Protein IDBP-3710.5
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol ST8SIA3
Protein Name ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 3
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000320431
InnateDB Gene IDBG-3708 (ST8SIA3)
Protein Structure
UniProt Annotation
Function May transfer sialic acid through alpha-2,8-linkages to alpha-2,3-linked and alpha-2,8-linked sialic acid of N-linked oligosaccharides of glycoproteins and glycolipids. It can form polysialic acid in vitro directly on alpha-2,3-, alpha-2,6-, or alpha-2,8-linked sialic acid. {ECO:0000269PubMed:10766765, ECO:0000269PubMed:9826427}.
Subcellular Localization Golgi apparatus membrane {ECO:0000305}; Single-pass type II membrane protein {ECO:0000305}.
Disease Associations
Tissue Specificity Expressed in fetal and adult brain and fetal liver. {ECO:0000269PubMed:9826427}.
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:0003828 alpha-N-acetylneuraminate alpha-2,8-sialyltransferase activity
GO:0008373 sialyltransferase activity
GO:0033691 sialic acid binding
Biological Process
GO:0001574 ganglioside biosynthetic process
GO:0006486 protein glycosylation
GO:0006491 N-glycan processing
GO:0006688 glycosphingolipid biosynthetic process
GO:0009100 glycoprotein metabolic process
GO:0009311 oligosaccharide metabolic process
GO:0018279 protein N-linked glycosylation via asparagine
GO:0043687 post-translational protein modification
GO:0044267 cellular protein metabolic process
GO:0097503 sialylation
Cellular Component
GO:0000139 Golgi membrane
GO:0030173 integral component of Golgi membrane
Protein Structure and Domains
PDB ID
InterPro IPR001675 Glycosyl transferase, family 29
IPR012163 Sialyltransferase
PFAM PF00777
PRINTS
PIRSF PIRSF005557
SMART
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt O43173
PhosphoSite PhosphoSite-O43173
TrEMBL Q59GW3
UniProt Splice Variant
Entrez Gene 51046
UniGene Hs.711721
RefSeq NP_056963
HUGO HGNC:14269
OMIM 609478
CCDS CCDS32834
HPRD 15343
IMGT
EMBL AB208996 AF003092 AF004668 AK289517 AK313047 BC074909
GenPept AAB87642 AAC15901 AAH74909 BAD92233 BAF82206 BAG35879