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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]
EXT2 (Exostosin Glycosyltransferase 2) is a Protein Coding gene. Diseases associated with EXT2 include Seizures, Scoliosis, And Macrocephaly/Microcephaly Syndrome and Exostoses, Multiple, Type Ii. Among its related pathways are Metabolism and Mesodermal Commitment Pathway. Gene Ontology (GO) annotations related to this gene include protein homodimerization activity and transferase activity, transferring glycosyl groups. An important paralog of this gene is EXT1.
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0005515 | protein binding | IPI | 18337501 |
GO:0008375 | contributes_to acetylglucosaminyltransferase activity | IEA,IDA | 12907669 |
GO:0015020 | glucuronosyltransferase activity | IDA | 12907669 |
GO:0016740 | transferase activity | IEA | -- |
GO:0016757 | transferase activity, transferring glycosyl groups | IDA | 12907669 |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0000139 | Golgi membrane | TAS | -- |
GO:0005783 | endoplasmic reticulum | ISS | -- |
GO:0005789 | endoplasmic reticulum membrane | TAS | 10639137 |
GO:0005794 | Golgi apparatus | ISS | -- |
GO:0016020 | membrane | IEA,HDA | 19946888 |
SuperPathway | Contained pathways | ||
---|---|---|---|
1 | Glycosaminoglycan metabolism | ||
2 | Metabolism |
.40
|
|
3 | heparan sulfate biosynthesis | ||
4 | Mesodermal Commitment Pathway |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0001503 | ossification | IMP | 9326317 |
GO:0001707 | mesoderm formation | IEA | -- |
GO:0006024 | glycosaminoglycan biosynthetic process | IDA,TAS | -- |
GO:0006486 | protein glycosylation | IEA | -- |
GO:0007165 | signal transduction | TAS | 10878610 |
Name | Synonyms | Role | CAS Number | PubChem IDs | PubMed IDs | |
---|---|---|---|---|---|---|
Uridine diphosphate-N-acetylglucosamine |
|
528-04-1 |
|
ExUns: | 1a | · | 1b | · | 1c | ^ | 2 | ^ | 3 | ^ | 4 | ^ | 5a | · | 5b | ^ | 6 | ^ | 7 | ^ | 8 | ^ | 9 | ^ | 10a | · | 10b | ^ | 11 | ^ | 12 | ^ | 13a | · | 13b | · | 13c | ^ | 14 | ^ | 15 | ^ | 16 | ^ | 17 | ^ | 18 | ^ | 19 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SP1: | - | - | - | - | - | ||||||||||||||||||||||||||||||||||||||||||||
SP2: | - | - | - | - | - | ||||||||||||||||||||||||||||||||||||||||||||
SP3: | |||||||||||||||||||||||||||||||||||||||||||||||||
SP4: | - | ||||||||||||||||||||||||||||||||||||||||||||||||
SP5: | - | ||||||||||||||||||||||||||||||||||||||||||||||||
SP6: | - |
This gene was present in the common ancestor of animals.
Organism | Taxonomy | Gene | Similarity | Type | Details |
---|---|---|---|---|---|
Chimpanzee (Pan troglodytes) |
Mammalia | EXT2 30 31 |
|
OneToOne | |
Platypus (Ornithorhynchus anatinus) |
Mammalia | -- 31 |
|
OneToMany | |
-- 31 |
|
OneToMany | |||
Oppossum (Monodelphis domestica) |
Mammalia | EXT2 31 |
|
OneToOne | |
Dog (Canis familiaris) |
Mammalia | EXT2 30 31 |
|
OneToOne | |
Rat (Rattus norvegicus) |
Mammalia | Ext2 30 |
|
||
Cow (Bos Taurus) |
Mammalia | EXT2 30 31 |
|
OneToOne | |
Mouse (Mus musculus) |
Mammalia | Ext2 30 17 31 |
|
OneToOne | |
Chicken (Gallus gallus) |
Aves | EXT2 30 31 |
|
OneToOne | |
Lizard (Anolis carolinensis) |
Reptilia | EXT2 31 |
|
OneToOne | |
Tropical Clawed Frog (Silurana tropicalis) |
Amphibia | ext2 30 |
|
||
Zebrafish (Danio rerio) |
Actinopterygii | ext2 30 31 |
|
OneToOne | |
-- 30 |
|
||||
Rainbow Trout (Oncorhynchus mykiss) |
Actinopterygii | Omy.7391 30 |
|
||
Fruit Fly (Drosophila melanogaster) |
Insecta | Ext2 30 31 |
|
OneToMany | |
African malaria mosquito (Anopheles gambiae) |
Insecta | AgaP_AGAP000081 30 |
|
||
Sea Squirt (Ciona savignyi) |
Ascidiacea | -- 31 |
|
ManyToMany | |
-- 31 |
|
ManyToMany |
SNP ID | Clinical significance and condition | Chr 11 pos | Variation | AA Info | Type |
---|---|---|---|---|---|
638379 | Uncertain Significance: Multiple exostoses type 2; Seizures, scoliosis, and macrocephaly syndrome | 44,109,228(+) | A/G | MISSENSE_VARIANT | |
638619 | Pathogenic: Seizures, scoliosis, and macrocephaly syndrome | 44,234,131(+) | A/G | MISSENSE_VARIANT | |
640236 | Pathogenic: Multiple exostoses type 2 | 44,126,827(+) | CTG/C | FRAMESHIFT_VARIANT | |
649849 | Pathogenic: Multiple exostoses type 2 | 44,114,226(+) | G/C | MISSENSE_VARIANT | |
655909 | Pathogenic: Multiple exostoses type 2 | 44,171,624(+) | G/A | NONSENSE,INTRON_VARIANT |
Variant ID | Type | Subtype | PubMed ID |
---|---|---|---|
esv3579496 | CNV | loss | 25503493 |
esv3626159 | CNV | loss | 21293372 |
nsv1043523 | CNV | gain | 25217958 |
nsv554183 | CNV | gain | 21841781 |
nsv832139 | CNV | loss | 17160897 |
Disorder | Aliases | PubMed IDs |
---|---|---|
seizures, scoliosis, and macrocephaly/microcephaly syndrome |
|
|
exostoses, multiple, type ii |
|
|
exostoses, multiple, type i |
|
|
inherited cancer-predisposing syndrome |
|
|
hereditary multiple exostoses |
|