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EXT2 exostosin glycosyltransferase 2 [ Homo sapiens (human) ]

Gene ID: 2132, updated on 13-Jan-2015
Official Symbol
EXT2provided by HGNC
Official Full Name
exostosin glycosyltransferase 2provided by HGNC
Primary source
HGNC:HGNC:3513
See related
Ensembl:ENSG00000151348; HPRD:00599; MIM:608210; Vega:OTTHUMG00000166498
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
SOTV
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 isoforms have been noted for this gene. [provided by RefSeq, Jul 2008]
Orthologs
See EXT2 in MapViewer
Location:
11p12-p11
Exon count:
16
Annotation release Status Assembly Chr Location
106 current GRCh38 (GCF_000001405.26) 11 NC_000011.10 (44095549..44245430)
105 previous assembly GRCh37.p13 (GCF_000001405.25) 11 NC_000011.9 (44117099..44266980)

Chromosome 11 - NC_000011.10Genomic Context describing neighboring genes Neighboring gene 1-aminocyclopropane-1-carboxylate synthase homolog (Arabidopsis)(non-functional)-like Neighboring gene 1-aminocyclopropane-1-carboxylate synthase homolog (Arabidopsis)(non-functional) Neighboring gene ALX homeobox 4 Neighboring gene 60S ribosomal protein L7a-like

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

Associated conditions

Description Tests
Multiple exostoses type 2 Compare labs

Copy number response

Description
Copy number response
Triplosensitivity

No evidence available (Last evaluated (2012-03-08)

ClinGen Genome Curation Page
Haploinsufficency

Sufficient evidence for dosage pathogenicity (Last evaluated (2012-03-08)

ClinGen Genome Curation PagePubMed
  • Defective B3GAT3 causes JDSSDHD, organism-specific biosystem (from REACTOME)
    Defective B3GAT3 causes JDSSDHD, organism-specific biosystemGalactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferases1, 2 and 3 (B3GAT1-3) are involved in forming the linker tetrasaccharide present in heparan sulfate and chondroitin sulfate. Defects ...
  • Defective B4GALT1 causes B4GALT1-CDG (CDG-2d), organism-specific biosystem (from REACTOME)
    Defective B4GALT1 causes B4GALT1-CDG (CDG-2d), organism-specific biosystemCongenital disorders of glycosylation (CDG, previously called carbohydrate-deficient glycoprotein syndromes, CDGSs), are a group of hereditary multisystem disorders. They are characterized biochemica...
  • Defective B4GALT7 causes EDS, progeroid type, organism-specific biosystem (from REACTOME)
    Defective B4GALT7 causes EDS, progeroid type, organism-specific biosystemEhlersDanlos syndrome (EDS) is a group of inherited connective tissue disorders, caused by a defect in the synthesis of collagen types I or III. Abnormal collagen renders connective tissues more elas...
  • Defective CHST14 causes EDS, musculocontractural type, organism-specific biosystem (from REACTOME)
    Defective CHST14 causes EDS, musculocontractural type, organism-specific biosystemCarbohydrate sulfotransferase 14 (CHST14 also known as D4ST-1) mediates the transfer of sulfate to position 4 of further N-acetylgalactosamine (GalNAc) residues of dermatan sulfate (DS). Defects in C...
  • Defective CHST3 causes SEDCJD, organism-specific biosystem (from REACTOME)
    Defective CHST3 causes SEDCJD, organism-specific biosystemCarbohydrate sulfotransferase 3 (CHST3) transfers sulfate (SO4(2-)) to position 6 of N-acetylgalactosamine (GalNAc) residues of chondroitin-containg proteins resulting in chondroitin sulfate (CS), th...
  • Defective CHST6 causes MCDC1, organism-specific biosystem (from REACTOME)
    Defective CHST6 causes MCDC1, organism-specific biosystemCarbohydrate sulfotransferase 6 (CHST6) catalyzes the transfer of sulfate to position 6 of non-reducing ends of N-acetylglucosamine (GlcNAc) residues on keratan sulfate (KS). KS plays a central role ...
  • Defective CHSY1 causes TPBS, organism-specific biosystem (from REACTOME)
    Defective CHSY1 causes TPBS, organism-specific biosystemChondroitin sulfate synthases (CHSY) are involved in the synthesis of chondroitin sulfate, adding alternatingly glucuronate (GlcA) and N-acetylgalactosamine (GalNAc) to the growing chondroitin polyme...
  • Defective EXT1 causes exostoses 1, TRPS2 and CHDS, organism-specific biosystem (from REACTOME)
    Defective EXT1 causes exostoses 1, TRPS2 and CHDS, organism-specific biosystemHeparan sulfate (HS) is involved in regulating various body functions functions during development, homeostasis and pathology including blood clotting, angiogenesis and metastasis of cancer cells. Ex...
  • Defective EXT2 causes exostoses 2, organism-specific biosystem (from REACTOME)
    Defective EXT2 causes exostoses 2, organism-specific biosystemHeparan sulfate (HS) is involved in regulating various body functions during development, homeostasis and pathology including blood clotting, angiogenesis and metastasis of cancer cells. Exostosin 1 ...
  • Defective PAPSS2 causes SEMD-PA, organism-specific biosystem (from REACTOME)
    Defective PAPSS2 causes SEMD-PA, organism-specific biosystemDefects in PAPSS2 cause spondyloepimetaphyseal dysplasia Pakistani type (SEMD-PA; MIM:612847), a bone disease characterized by epiphyseal dysplasia with mild metaphyseal abnormalities. Clinical featu...
  • Defective SLC26A2 causes chondrodysplasias, organism-specific biosystem (from REACTOME)
    Defective SLC26A2 causes chondrodysplasias, organism-specific biosystemThe SLC26A1 and 2 genes encode sulfate transporter proteins that facilitate sulfate uptake into cells, critical in cartilage for sulfation of proteoglycans and extracellular matrix organization. Defe...
  • Disease, organism-specific biosystem (from REACTOME)
    Disease, organism-specific biosystemBiological processes are captured in Reactome by identifying the molecules (DNA, RNA, protein, small molecules) involved in them and describing the details of their interactions. From this molecular ...
  • Diseases associated with glycosaminoglycan metabolism, organism-specific biosystem (from REACTOME)
    Diseases associated with glycosaminoglycan metabolism, organism-specific biosystemA number of genetic disorders are caused by mutations in the genes encoding glycosyltransferases and sulfotransferases, enzymes responsible for the synthesis of glycosaminoglycans (GAGs) as well as ...
  • Diseases of glycosylation, organism-specific biosystem (from REACTOME)
    Diseases of glycosylation, organism-specific biosystemDiseases of glycosylation, usually referred to as congenital disorders of glycosylation (CDG), are rare inherited disorders ascribing defects of nucleotide-sugar biosynthesis and transport, glycosylt...
  • Glycogen storage diseases, organism-specific biosystem (from REACTOME)
    Glycogen storage diseases, organism-specific biosystemThe regulated turnover of glycogen plays a central, tissue-specific role in the maintenance of blood glucose levels and in the provision of glucose to tissues such as muscle and brain in response to ...
  • Glycosaminoglycan biosynthesis - heparan sulfate / heparin, organism-specific biosystem (from KEGG)
    Glycosaminoglycan biosynthesis - heparan sulfate / heparin, organism-specific biosystemHeparan sulfate (HS) and heparin (Hep) are glycosaminoglycans with repeating disaccharide units that consist of alternating residues of alpha-D-glucosamine (GlcN) and uronic acid, the latter being ei...
  • Glycosaminoglycan biosynthesis - heparan sulfate / heparin, conserved biosystem (from KEGG)
    Glycosaminoglycan biosynthesis - heparan sulfate / heparin, conserved biosystemHeparan sulfate (HS) and heparin (Hep) are glycosaminoglycans with repeating disaccharide units that consist of alternating residues of alpha-D-glucosamine (GlcN) and uronic acid, the latter being ei...
  • Glycosaminoglycan biosynthesis, heparan sulfate backbone, organism-specific biosystem (from KEGG)
    Glycosaminoglycan biosynthesis, heparan sulfate backbone, organism-specific biosystemPathway module; Carbohydrate and lipid metabolism; Glycosaminoglycan metabolism
  • Glycosaminoglycan biosynthesis, heparan sulfate backbone, conserved biosystem (from KEGG)
    Glycosaminoglycan biosynthesis, heparan sulfate backbone, conserved biosystemPathway module; Carbohydrate and lipid metabolism; Glycosaminoglycan metabolism
  • Glycosaminoglycan metabolism, organism-specific biosystem (from REACTOME)
    Glycosaminoglycan metabolism, organism-specific biosystemGlycosaminoglycans (GAGs) are long, unbranched polysaccharides containing a repeating disaccharide unit composed of a hexosamine (either N-acetylgalactosamine (GalNAc) or N-acetylglucosamine (GlcNAc)...
  • HS-GAG biosynthesis, organism-specific biosystem (from REACTOME)
    HS-GAG biosynthesis, organism-specific biosystemHeparan sulfate (HS) and heparin (sometimes collectively called HS-GAG) consist of the disaccharide unit GlcNAc-GlcA (N-acetylglucosamine-glucuronic acid) connected by a beta1,4 linkage. Heparin is e...
  • Heparan sulfate/heparin (HS-GAG) metabolism, organism-specific biosystem (from REACTOME)
    Heparan sulfate/heparin (HS-GAG) metabolism, organism-specific biosystemThe acronym HS-GAG is used to describe both heparin and heparan sulfate. HS-GAG is a member of the glycosaminoglycan family and consists of a variably sulfated repeating disaccharide unit, the most ...
  • MPS I - Hurler syndrome, organism-specific biosystem (from REACTOME)
    MPS I - Hurler syndrome, organism-specific biosystemMucopolysaccharidosis type I (MPS I, Hurler syndrome, Hurler's disease, gargoylism, Scheie, Hirler-Scheie syndrome; MIM:607014, 607015 and 607016) is an autosomal recessive genetic disorder where th...
  • MPS II - Hunter syndrome, organism-specific biosystem (from REACTOME)
    MPS II - Hunter syndrome, organism-specific biosystemMucopolysaccharidosis II (MPS II, Hunter syndrome, MIM:309900) is an X-linked, recessive genetic disorder which therefore primarily affects males. MPS II was first described in 1917, by Major Charles...
  • MPS IIIA - Sanfilippo syndrome A, organism-specific biosystem (from REACTOME)
    MPS IIIA - Sanfilippo syndrome A, organism-specific biosystemMucopolysaccharidosis III (MPS III, Sanfilippo syndrome) was described in 1963 by a pediatrician named Sylvester Sanfilippo (J. Pediat. 63: 837-838, 1963, no reference). Mucopolysaccharidosis IIIA (M...
  • MPS IIIB - Sanfilippo syndrome B, organism-specific biosystem (from REACTOME)
    MPS IIIB - Sanfilippo syndrome B, organism-specific biosystemMucopolysaccharidosis III (Sanfilippo syndrome) was described in 1963 by a pediatrician named Sylvester Sanfilippo (J. Pediat. 63: 837838, 1963, no reference). MPS IIIB (Mucopolysaccharidosis type II...
  • MPS IIIC - Sanfilippo syndrome C, organism-specific biosystem (from REACTOME)
    MPS IIIC - Sanfilippo syndrome C, organism-specific biosystemMucopolysaccharidosis III (Sanfilippo syndrome) was described in 1963 by a pediatrician named Sylvester Sanfilippo (J. Pediat. 63: 837838, 1963, no reference). Mucopolysaccharidosis type IIIC (MPS II...
  • MPS IIID - Sanfilippo syndrome D, organism-specific biosystem (from REACTOME)
    MPS IIID - Sanfilippo syndrome D, organism-specific biosystemMucopolysaccharidosis III (Sanfilippo syndrome) was described in 1963 by a pediatrician named Sylvester Sanfilippo (J. Pediat. 63: 837-838, 1963, no reference). Mucopolysaccharidosis type IIID (MPS I...
  • MPS IV - Morquio syndrome A, organism-specific biosystem (from REACTOME)
    MPS IV - Morquio syndrome A, organism-specific biosystemMucopolysaccharidosis IV A (MPS IVA, MPS4A, Morquio's syndrome, Morquio's; MIM:253000) is a rare, autosomal recessive mucopolysaccharide storage disease, first described simultaneously in 1929 by L M...
  • MPS IV - Morquio syndrome B, organism-specific biosystem (from REACTOME)
    MPS IV - Morquio syndrome B, organism-specific biosystemDefects in beta-galactosidase (GLB1; MIM:611458) can result in GM1 gangliosidosis (GM1; MIM:230500) (Nishimoto et al. 1991) (not described here), with several phenotypes indicating mental deteriorati...
  • MPS IX - Natowicz syndrome, organism-specific biosystem (from REACTOME)
    MPS IX - Natowicz syndrome, organism-specific biosystemMucopolysaccharidosis type IX (MPS IX, Natowicz syndrome, Hyaluronidase deficiency, MIM:601492) is a rare lysosomal storage disease characterized by high hyaluronan (HA) concentration in the serum re...
  • MPS VI - Maroteaux-Lamy syndrome, organism-specific biosystem (from REACTOME)
    MPS VI - Maroteaux-Lamy syndrome, organism-specific biosystemMucopolysaccharidosis type VI (MPS VI, Maroteaux-Lamy syndrome, polydystrophic dwarfism; MIM:253200) is an autosomal recessive lysosomal storage disorder caused by a deficiency in arylsulfatase B (AR...
  • MPS VII - Sly syndrome, organism-specific biosystem (from REACTOME)
    MPS VII - Sly syndrome, organism-specific biosystemMucopolysaccharidosis type VII (MPS VII, Sly syndrome, beta-glucuronidase deficiency; MIM:253220) is an autosomal recessive lysosomal storage disease characterized by a deficiency of the enzyme beta-...
  • Metabolic pathways, organism-specific biosystem (from KEGG)
    Metabolic pathways, organism-specific biosystem
    Metabolic pathways
  • Metabolism, organism-specific biosystem (from REACTOME)
    Metabolism, organism-specific biosystemMetabolic processes in human cells generate energy through the oxidation of molecules consumed in the diet and mediate the synthesis of diverse essential molecules not taken in the diet as well as th...
  • Metabolism of carbohydrates, organism-specific biosystem (from REACTOME)
    Metabolism of carbohydrates, organism-specific biosystemThese pathways together are responsible for: 1) the extraction of energy and carbon skeletons for biosyntheses from dietary sugars and related molecules; 2) the short-term storage of glucose in the b...
  • Mucopolysaccharidoses, organism-specific biosystem (from REACTOME)
    Mucopolysaccharidoses, organism-specific biosystemThe mucopolysaccharidoses (MPS) are a group of rare, inherited lysosomal storage disorders caused by deficiencies of enzymes catalyzing the stepwise degradation of glycosaminoglycans (GAGs, originall...
  • Myoclonic epilepsy of Lafora, organism-specific biosystem (from REACTOME)
    Myoclonic epilepsy of Lafora, organism-specific biosystemLafora disease is a progressive neurodegenerative disorder with onset typically late in childhood, characterized by seizures and progressive neurological deterioration and death within ten years of o...
  • heparan sulfate biosynthesis, organism-specific biosystem (from BIOCYC)
    heparan sulfate biosynthesis, organism-specific biosystem
    heparan sulfate biosynthesis
  • heparan sulfate biosynthesis, conserved biosystem (from BIOCYC)
    heparan sulfate biosynthesis, conserved biosystemBackground |FRAME: Heparan-Sulfate "Heparan sulfate"| is a linear polysaccharide found in all animal tissues. It occurs as a proteoglycan in which two or three heparan sulfate chains are attached to...
  • heparan sulfate biosynthesis (late stages), organism-specific biosystem (from BIOCYC)
    heparan sulfate biosynthesis (late stages), organism-specific biosystemBackground : Heparan-Sulfate "Heparan sulfate" is a linear polysaccharide found in all animal tissues. It occurs as a proteoglycan in which two or three heparan sulfate chains are attached to cell s...
  • heparan sulfate biosynthesis (late stages), conserved biosystem (from BIOCYC)
    heparan sulfate biosynthesis (late stages), conserved biosystemBackground |FRAME: Heparan-Sulfate "Heparan sulfate"| is a linear polysaccharide found in all animal tissues. It occurs as a proteoglycan in which two or three heparan sulfate chains are attached to...
Products Interactant Other Gene Complex Source Pubs Description

Markers

Homology

Gene Ontology Provided by GOA

Process Evidence Code Pubs
carbohydrate metabolic process TAS
Traceable Author Statement
more info
 
cell differentiation IEA
Inferred from Electronic Annotation
more info
 
cellular polysaccharide biosynthetic process IDA
Inferred from Direct Assay
more info
PubMed 
glycosaminoglycan biosynthetic process IDA
Inferred from Direct Assay
more info
PubMed 
glycosaminoglycan biosynthetic process TAS
Traceable Author Statement
more info
 
glycosaminoglycan metabolic process TAS
Traceable Author Statement
more info
 
heparan sulfate proteoglycan biosynthetic process IMP
Inferred from Mutant Phenotype
more info
PubMed 
heparan sulfate proteoglycan biosynthetic process, polysaccharide chain biosynthetic process IMP
Inferred from Mutant Phenotype
more info
PubMed 
mesoderm formation IEA
Inferred from Electronic Annotation
more info
 
ossification IMP
Inferred from Mutant Phenotype
more info
PubMed 
pathogenesis TAS
Traceable Author Statement
more info
 
protein glycosylation IEA
Inferred from Electronic Annotation
more info
 
signal transduction TAS
Traceable Author Statement
more info
PubMed 
small molecule metabolic process TAS
Traceable Author Statement
more info
 
Component Evidence Code Pubs
Golgi apparatus ISS
Inferred from Sequence or Structural Similarity
more info
 
Golgi membrane TAS
Traceable Author Statement
more info
 
UDP-N-acetylglucosamine transferase complex IDA
Inferred from Direct Assay
more info
PubMed 
endoplasmic reticulum ISS
Inferred from Sequence or Structural Similarity
more info
 
endoplasmic reticulum membrane TAS
Traceable Author Statement
more info
PubMed 
extracellular vesicular exosome IDA
Inferred from Direct Assay
more info
PubMed 
integral component of membrane IEA
Inferred from Electronic Annotation
more info
 
membrane IDA
Inferred from Direct Assay
more info
PubMed 
Preferred Names
exostosin-2
Names
exostosin-2
multiple exostoses protein 2
putative tumor suppressor protein EXT2
N-acetylglucosaminyl-proteoglycan 4-beta-glucuronosyltransferase
glucuronosyl-N-acetylglucosaminyl-proteoglycan/N-acetylglucosaminyl-proteoglycan 4-alpha-N-acetylglucosaminyltransferase
NP_000392.3
NP_001171554.1
NP_997005.1

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_007560.1 

    Range
    5001..154882
    Download
    GenBank, FASTA, Sequence Viewer (Graphics), LRG_494

mRNA and Protein(s)

  1. NM_000401.3NP_000392.3  exostosin-2 isoform 1

    See proteins identical to NP_000392.3

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) encodes the longer isoform (1).
    Source sequence(s)
    AC068457, AC103854, BE348865, BX648142, DA738392
    Consensus CDS
    CCDS53618.1
    UniProtKB/Swiss-Prot
    Q93063
    Related
    ENSP00000379032, ENST00000395673
    Conserved Domains (2) summary
    pfam03016
    Location:133413
    Exostosin; Exostosin family
    pfam09258
    Location:489734
    Glyco_transf_64; Glycosyl transferase family 64 domain
  2. NM_001178083.1NP_001171554.1  exostosin-2 isoform 3

    See proteins identical to NP_001171554.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (3) has multiple differences, compared to variant 1. These differences result in a distinct 5' UTR and cause translation initiation at a downstream start codon, compared to variant 1. The encoded protein (isoform 3) is shorter than isoform 1.
    Source sequence(s)
    AC068457, AC103854, BE348865, BX648142, U62740, U72263
    Consensus CDS
    CCDS53619.1
    UniProtKB/Swiss-Prot
    Q93063
    Related
    ENSP00000351509, OTTHUMP00000233077, ENST00000358681, OTTHUMT00000390073
    Conserved Domains (2) summary
    pfam03016
    Location:100380
    Exostosin; Exostosin family
    pfam09258
    Location:466711
    Glyco_transf_64; Glycosyl transferase family 64 domain
  3. NM_207122.1NP_997005.1  exostosin-2 isoform 2

    See proteins identical to NP_997005.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) is the predominant transcript and differs in the 5' UTR and coding region, compared to variant 1. These differences causes translation initiation at a downstream start codon and result in isoform (2) which has a shorter N-terminus, compared to isoform 1.
    Source sequence(s)
    BM997250, U62740
    Consensus CDS
    CCDS7908.1
    UniProtKB/Swiss-Prot
    Q93063
    Related
    ENSP00000431173, OTTHUMP00000233074, ENST00000533608, OTTHUMT00000390069
    Conserved Domains (2) summary
    pfam03016
    Location:100380
    Exostosin; Exostosin family
    pfam09258
    Location:456701
    Glyco_transf_64; Glycosyl transferase family 64 domain

RefSeqs of Annotated Genomes: Homo sapiens Annotation Release 106

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38 Primary Assembly

Genomic

  1. NC_000011.10 

    Range
    44095549..44245430
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate CHM1_1.1

Genomic

  1. NC_018922.2 

    Range
    44116142..44266006
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate HuRef

Genomic

  1. AC_000143.1 

    Range
    43826189..43975955
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)