Gene Gene information from NCBI Gene database.
Entrez ID 22856
Gene name Chondroitin sulfate synthase 1
Gene symbol CHSY1
Synonyms (NCBI Gene)
CHSYCSS1ChSy-1TPBS
Chromosome 15
Chromosome location 15q26.3
Summary This gene encodes a member of the chondroitin N-acetylgalactosaminyltransferase family. These enzymes possess dual glucuronyltransferase and galactosaminyltransferase activity and play critical roles in the biosynthesis of chondroitin sulfate, a glycosami
SNPs SNP information provided by dbSNP.
9
SNP ID Visualize variation Clinical significance Consequence
rs146047900 C>A,T Conflicting-interpretations-of-pathogenicity Missense variant, genic upstream transcript variant, coding sequence variant, synonymous variant
rs146586939 T>A,C Conflicting-interpretations-of-pathogenicity Synonymous variant, coding sequence variant, missense variant
rs387906984 G>A Pathogenic Coding sequence variant, genic upstream transcript variant, stop gained
rs387906985 G>C Pathogenic Coding sequence variant, missense variant
rs751409111 G>A,T Conflicting-interpretations-of-pathogenicity Genic upstream transcript variant, coding sequence variant, synonymous variant
miRNA miRNA information provided by mirtarbase database.
351
miRTarBase ID miRNA Experiments Reference
MIRT002768 hsa-miR-1-3p Microarray 15685193
MIRT002605 hsa-miR-124-3p Microarray 15685193
MIRT019774 hsa-miR-375 Microarray 20215506
MIRT021396 hsa-miR-9-5p Sequencing 20371350
MIRT002605 hsa-miR-124-3p Microarray 18668037
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
32
GO ID Ontology Definition Evidence Reference
GO:0000139 Component Golgi membrane TAS
GO:0002063 Process Chondrocyte development IEA
GO:0005576 Component Extracellular region IDA 21129727
GO:0005576 Component Extracellular region IEA
GO:0005794 Component Golgi apparatus IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
608183 17198 ENSG00000131873
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q86X52
Protein name Chondroitin sulfate synthase 1 (EC 2.4.1.175) (EC 2.4.1.226) (Chondroitin glucuronyltransferase 1) (Chondroitin synthase 1) (ChSy-1) (Glucuronosyl-N-acetylgalactosaminyl-proteoglycan 4-beta-N-acetylgalactosaminyltransferase 1) (N-acetylgalactosaminyl-prot
Protein 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
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF05679 CHGN 238 777 Chondroitin N-acetylgalactosaminyltransferase Family
Tissue specificity TISSUE SPECIFICITY: Ubiquitous, with the highest levels in placenta. Detected at low levels in brain, heart, skeletal muscle, colon, thymus, spleen, kidney, liver, adrenal gland, mammary gland, stomach, small intestine, lung and peripheral blood leukocyte
Sequence
MAARGRRAWLSVLLGLVLGFVLASRLVLPRASELKRAGPRRRASPEGCRSGQAAASQAGG
ARGDARGAQLWPPGSDPDGGPRDRNFLFVGVMTAQKYLQTRAVAAYRTWSKTIPGKVQFF
SSEGSDTSVPIPVVPLRGVDDSYPPQKKSFMMLKYMHDHYLDKYEWFMRADDDVYIKGDR
LENFLRSLNSSEPLFLGQTGLGTTEEMGKLALEPGENFCMGGPGVIMSREVLRRMVPHIG
KCLREMYTTHEDVEVGRCVRRFAGVQCVWSYEMQQLFYENYEQNKKGYIRDLHNSKIHQA
ITLHPNKNPPYQYRLHSYMLSRKISELRHRTIQLHREIVLMSKYSNTEIHKEDLQLGIPP
SFMRFQPRQREEILEWEFLTGKYLYSAVDGQPPRRGMDSAQREALDDIVMQVMEMINANA
KTRGRIIDFKEIQYGYRRVNPMYGAEYILDLLLLYKKHKGKKMTVPVRRHAYLQQTFSKI
QFVEHEELDAQELAKRINQESGSLSFLSNSLKKLVPFQLPGSKSEHKEPKDKKINILIPL
SGRFDMFVRFMGNFEKTCLIPNQNVKLVVLLFNSDSNPDKAKQVELMRDYRIKYPKADMQ
ILPVSGEFSRALALEVGSSQFNNESLLFFCDVDLVFTTEFLQRCRANTVLGQQIYFPIIF
SQYDPKIVYSGKVPSDNHFAFTQKTGFWRNYGFGITCIYKGDLVRVGGFDVSIQGWGLED
VDLFNKVVQAGLKTFRSQEVGVVHVHHPVFCDPNLDPKQYKMCLGSKASTYGSTQQL
AEM
WLEKNDPSYSKSSNNNGSVRTA
Sequence length 802
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Glycosaminoglycan biosynthesis - chondroitin sulfate / dermatan sulfate
Metabolic pathways
  Chondroitin sulfate biosynthesis
Defective CHSY1 causes TPBS
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
17
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Temtamy preaxial brachydactyly syndrome Pathogenic rs2039109846, rs1567112402, rs387906984, rs1567106459, rs387906985, rs1596459125 RCV000023688
RCV000023689
RCV000023690
RCV000023691
RCV000023692
View all (1 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
ANKYLOSING SPONDYLITIS GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
BONE FRACTURE GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cholangiocarcinoma Benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CHSY1-related disorder Likely benign; Benign; Uncertain significance ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Adult Malignant Peripheral Nerve Sheath Tumor Malignant Peripheral Nerve Sheath Tumor BEFREE 26997434
★☆☆☆☆
Found in Text Mining only
Aortic Dissection Aortic dissection Pubtator 37684281 Associate
★☆☆☆☆
Found in Text Mining only
B-Cell Lymphomas B-Cell Lymphoma BEFREE 30344756
★☆☆☆☆
Found in Text Mining only
Brachydactyly Brachydactyly BEFREE 21129727, 22280990
★☆☆☆☆
Found in Text Mining only
Brachydactyly Brachydactyly Pubtator 21129727 Associate
★☆☆☆☆
Found in Text Mining only
Brachydactyly Brachydactyly HPO_DG
★☆☆☆☆
Found in Text Mining only
Breast Carcinoma Breast Carcinoma BEFREE 29984655
★☆☆☆☆
Found in Text Mining only
Carpal synostosis Carpal synostosis HPO_DG
★☆☆☆☆
Found in Text Mining only
Childhood Malignant Peripheral Nerve Sheath Tumor Malignant Peripheral Nerve Sheath Tumor BEFREE 26997434
★☆☆☆☆
Found in Text Mining only
Clinodactyly Clinodactyly HPO_DG
★☆☆☆☆
Found in Text Mining only