Gene Gene information from NCBI Gene database.
Entrez ID 2132
Gene name Exostosin glycosyltransferase 2
Gene symbol EXT2
Synonyms (NCBI Gene)
SOTVSSMS
Chromosome 11
Chromosome location 11p11.2
Summary This gene encodes one of two glycosyltransferases involved in the chain elongation step of heparan sulfate biosynthesis. Mutations in this gene cause the type II form of multiple exostoses. Alternatively spliced transcript variants encoding different isof
SNPs SNP information provided by dbSNP.
55
SNP ID Visualize variation Clinical significance Consequence
rs121918279 C>G,T Pathogenic Coding sequence variant, stop gained, missense variant
rs121918280 G>A Pathogenic Coding sequence variant, missense variant
rs121918281 C>G Pathogenic Coding sequence variant, stop gained
rs138187791 G>A Likely-benign, conflicting-interpretations-of-pathogenicity, uncertain-significance, not-provided Coding sequence variant, intron variant, missense variant
rs138495222 C>T Likely-benign, conflicting-interpretations-of-pathogenicity, uncertain-significance, not-provided Coding sequence variant, genic downstream transcript variant, missense variant
miRNA miRNA information provided by mirtarbase database.
586
miRTarBase ID miRNA Experiments Reference
MIRT029899 hsa-miR-26b-5p Microarray 19088304
MIRT047352 hsa-miR-34a-5p CLASH 23622248
MIRT483072 hsa-miR-6753-5p PAR-CLIP 20371350
MIRT483070 hsa-miR-4436b-3p PAR-CLIP 20371350
MIRT483068 hsa-miR-4632-5p PAR-CLIP 20371350
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
57
GO ID Ontology Definition Evidence Reference
GO:0000139 Component Golgi membrane IEA
GO:0000139 Component Golgi membrane TAS
GO:0000271 Process Polysaccharide biosynthetic process IDA 12907669
GO:0001503 Process Ossification IMP 9326317
GO:0001707 Process Mesoderm formation IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
608210 3513 ENSG00000151348
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q93063
Protein name Exostosin-2 (EC 2.4.1.224) (Exostosin glycosyltransferase 2) (Glucuronosyl-N-acetylglucosaminyl-proteoglycan 4-alpha-N-acetylglucosaminyltransferase) (Heparan sulfate co-polymerase subunit EXT1) (Multiple exostoses protein 2)
Protein function Glycosyltransferase forming with EXT1 the heterodimeric heparan sulfate polymerase which catalyzes the elongation of the heparan sulfate glycan backbone (PubMed:22660413, PubMed:36402845, PubMed:36593275). Glycan backbone extension consists in t
PDB 7SCH , 7SCJ , 7SCK , 7UQX , 7UQY , 7ZAY
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF03016 Exostosin 100 380 Exostosin family Family
PF09258 Glyco_transf_64 456 701 Glycosyl transferase family 64 domain Domain
Tissue specificity TISSUE SPECIFICITY: Widely expressed. {ECO:0000269|PubMed:8782816}.
Sequence
Sequence length 718
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Glycosaminoglycan biosynthesis - heparan sulfate / heparin
Metabolic pathways
  HS-GAG biosynthesis
Defective EXT2 causes exostoses 2
Defective EXT1 causes exostoses 1, TRPS2 and CHDS
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
35
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
Exostoses, multiple, type 2 Pathogenic; Likely pathogenic rs2134965356, rs2134967046, rs2135014852, rs1448103584, rs1403873034, rs2135204843, rs1954091762, rs2134971524, rs2134985434, rs753973135, rs781083252, rs2134967717, rs2134965481, rs2135020654, rs2134968744
View all (128 more)
RCV001387737
RCV001381924
RCV001390840
RCV001386700
RCV001386701
View all (149 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
EXT2-related disorder Pathogenic; Likely pathogenic rs864309636, rs121918281, rs864309638, rs763718818, rs2539562654, rs1488367942, rs754533434 RCV003415629
RCV003894785
RCV003398422
RCV003930032
RCV003412477
View all (2 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Hepatoblastoma Likely pathogenic rs2135127852 RCV001843912
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Hereditary cancer-predisposing syndrome Pathogenic rs121918279 RCV000850054
★★★★☆
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
Acute myeloid leukemia Likely benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ANDROGENETIC ALOPECIA GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cervical cancer Likely benign; Benign; Conflicting classifications of pathogenicity ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cholangiocarcinoma Benign 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
Adenocarcinoma of large intestine Colorectal Cancer CLINVAR_DG
★☆☆☆☆
Found in Text Mining only
Anemia Anemia HPO_DG
★☆☆☆☆
Found in Text Mining only
Atrophy Atrophy Pubtator 33478971 Stimulate
★☆☆☆☆
Found in Text Mining only
Autistic behavior Autism HPO_DG
★☆☆☆☆
Found in Text Mining only
Autoimmune Diseases Autoimmune Diseases BEFREE 31061139
★☆☆☆☆
Found in Text Mining only
Benign Neoplasm Benign Neoplasm BEFREE 27636706
★☆☆☆☆
Found in Text Mining only
Bone Diseases Bone Disease BEFREE 10713884, 11256613
★☆☆☆☆
Found in Text Mining only
Bone neoplasms Bone neoplasms BEFREE 9479495
★☆☆☆☆
Found in Text Mining only
Brachycephaly Brachycephaly HPO_DG
★☆☆☆☆
Found in Text Mining only
Breast Carcinoma Breast Carcinoma CLINVAR_DG
★☆☆☆☆
Found in Text Mining only