Homo sapiens Protein: CHSY3
Summary
InnateDB Protein IDBP-40300.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol CHSY3
Protein Name chondroitin sulfate synthase 3
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000302629
InnateDB Gene IDBG-40298 (CHSY3)
Protein Structure
UniProt Annotation
Function Has both beta-1,3-glucuronic acid and beta-1,4-N- acetylgalactosamine transferase activity. Transfers glucuronic acid (GlcUA) from UDP-GlcUA and N-acetylgalactosamine (GalNAc) from UDP-GalNAc to the non-reducing end of the elongating chondroitin polymer. Specific activity is much reduced compared to CHSY1. {ECO:0000269PubMed:12907687}.
Subcellular Localization Golgi apparatus, Golgi stack membrane {ECO:0000305PubMed:12907687}; Single-pass type II membrane protein {ECO:0000305PubMed:12907687}.
Disease Associations
Tissue Specificity Detected at low levels in brain, cerebral cortex, uterus and small intestine. {ECO:0000269PubMed:12907687}.
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:0016757 transferase activity, transferring glycosyl groups
GO:0046872 metal ion binding
GO:0047238 glucuronosyl-N-acetylgalactosaminyl-proteoglycan 4-beta-N-acetylgalactosaminyltransferase activity
GO:0050510 N-acetylgalactosaminyl-proteoglycan 3-beta-glucuronosyltransferase activity
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0030203 glycosaminoglycan metabolic process
GO:0030204 chondroitin sulfate metabolic process
GO:0030206 chondroitin sulfate biosynthetic process
GO:0044281 small molecule metabolic process
Cellular Component
GO:0000139 Golgi membrane
GO:0016020 membrane
GO:0016021 integral component of membrane
GO:0032580 Golgi cisterna membrane
Protein Structure and Domains
PDB ID
InterPro IPR003378 Fringe-like
IPR008428 Chondroitin N-acetylgalactosaminyltransferase
IPR029044 Nucleotide-diphospho-sugar transferases
PFAM PF02434
PF05679
PRINTS
PIRSF
SMART
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q70JA7
PhosphoSite PhosphoSite-Q70JA7
TrEMBL Q1JTV1
UniProt Splice Variant
Entrez Gene 337876
UniGene Hs.611691
RefSeq NP_787052
HUGO HGNC:24293
OMIM 609963
CCDS CCDS34223
HPRD 16766
IMGT
EMBL AB086062 AJ504664 AJ578034 AJ862728 BC137325
GenPept AAI37326 BAC98832 CAD43233 CAE17326 CAH89316