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The protein encoded by this gene specifies the cardiac muscle family member of the calsequestrin family. Calsequestrin is localized to the sarcoplasmic reticulum in cardiac and slow skeletal muscle cells. The protein is a calcium binding protein that stores calcium for muscle function. Mutations in this gene cause stress-induced polymorphic ventricular tachycardia, also referred to as catecholaminergic polymorphic ventricular tachycardia 2 (CPVT2), a disease characterized by bidirectional ventricular tachycardia that may lead to cardiac arrest. [provided by RefSeq, Jul 2008]
CASQ2 (Calsequestrin 2) is a Protein Coding gene. Diseases associated with CASQ2 include Ventricular Tachycardia, Catecholaminergic Polymorphic, 2 and Catecholaminergic Polymorphic Ventricular Tachycardia. Among its related pathways are Antiarrhythmic Pathway, Pharmacodynamics and Calcium signaling pathway. Gene Ontology (GO) annotations related to this gene include calcium ion binding and calcium-dependent protein binding. An important paralog of this gene is CASQ1.
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0005509 | calcium ion binding | IBA,IDA | 16601229 |
GO:0005515 | protein binding | IPI | 22123818 |
GO:0042803 | protein homodimerization activity | ISS | -- |
GO:0046872 | metal ion binding | IEA | -- |
GO:0048306 | calcium-dependent protein binding | IDA | 15485681 |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0005737 | cytoplasm | IDA | 22123818 |
GO:0014701 | junctional sarcoplasmic reticulum membrane | TAS | 17569730 |
GO:0016529 | sarcoplasmic reticulum | ISS | -- |
GO:0030018 | Z disc | ISS | -- |
GO:0033017 | sarcoplasmic reticulum membrane | TAS | -- |
SuperPathway | Contained pathways | ||
---|---|---|---|
1 | Calcium signaling pathway | ||
2 | Cardiac muscle contraction | ||
3 | Antiarrhythmic Pathway, Pharmacodynamics | ||
4 | Myometrial Relaxation and Contraction Pathways |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0002027 | regulation of heart rate | IMP | 15485681 |
GO:0005513 | detection of calcium ion | TAS | 22123818 |
GO:0006941 | striated muscle contraction | TAS | 9795116 |
GO:0010649 | regulation of cell communication by electrical coupling | IMP | 16908766 |
GO:0010880 | regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum | ISS | -- |
Name | Synonyms | Role | CAS Number | PubChem IDs | PubMed IDs |
---|
ExUns: | 1 | ^ | 2a | · | 2b | ^ | 3 | ^ | 4 | ^ | 5a | · | 5b | · | 5c | ^ | 6 | ^ | 7 | ^ | 8 | ^ | 9 | ^ | 10 | ^ | 11 | ^ | 12 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SP1: | - | ||||||||||||||||||||||||||||
SP2: | - | - | |||||||||||||||||||||||||||
SP3: |
This gene was present in the common ancestor of animals.
Organism | Taxonomy | Gene | Similarity | Type | Details |
---|---|---|---|---|---|
Chimpanzee (Pan troglodytes) |
Mammalia | CASQ2 30 31 |
|
OneToOne | |
Dog (Canis familiaris) |
Mammalia | CASQ2 30 31 |
|
OneToOne | |
Cow (Bos Taurus) |
Mammalia | CASQ2 30 31 |
|
OneToOne | |
Rat (Rattus norvegicus) |
Mammalia | Casq2 30 |
|
||
Mouse (Mus musculus) |
Mammalia | Casq2 30 17 31 |
|
OneToOne | |
Oppossum (Monodelphis domestica) |
Mammalia | CASQ2 31 |
|
OneToOne | |
Platypus (Ornithorhynchus anatinus) |
Mammalia | -- 31 |
|
OneToMany | |
-- 31 |
|
OneToMany | |||
Chicken (Gallus gallus) |
Aves | CASQ2 30 31 |
|
OneToOne | |
Lizard (Anolis carolinensis) |
Reptilia | CASQ2 31 |
|
OneToOne | |
Tropical Clawed Frog (Silurana tropicalis) |
Amphibia | MGC76326 30 30 |
|
||
African clawed frog (Xenopus laevis) |
Amphibia | LOC398424 30 |
|
||
Zebrafish (Danio rerio) |
Actinopterygii | casq2 30 31 |
|
OneToOne | |
Rainbow Trout (Oncorhynchus mykiss) |
Actinopterygii | Omy.6745 30 |
|
||
Worm (Caenorhabditis elegans) |
Secernentea | csq-1 31 |
|
OneToMany | |
Sea Squirt (Ciona savignyi) |
Ascidiacea | -- 31 |
|
OneToMany | |
Sea Vase (Ciona intestinalis) |
Ascidiacea | Cin.10261 30 |
|
SNP ID | Clinical significance and condition | Chr 01 pos | Variation | AA Info | Type |
---|---|---|---|---|---|
238671 | Conflicting Interpretations: Ventricular tachycardia, catecholaminergic polymorphic, 2; Catecholaminergic polymorphic ventricular tachycardia | 115,726,998(-) |
TG/CA NM_001232.3(CASQ2):c.730_731inv (p.His244Cys) |
MISSENSE | |
838554 | Uncertain Significance: Catecholaminergic polymorphic ventricular tachycardia | 115,768,384(-) |
C/A NM_001232.4(CASQ2):c.158G>T (p.Cys53Phe) |
MISSENSE | |
852876 | Uncertain Significance: Catecholaminergic polymorphic ventricular tachycardia | 115,768,459(-) |
T/C NM_001232.4(CASQ2):c.83A>G (p.Tyr28Cys) |
MISSENSE | |
853994 | Uncertain Significance: Catecholaminergic polymorphic ventricular tachycardia | 115,744,897(-) |
G/A NM_001232.4(CASQ2):c.250C>T (p.Leu84Phe) |
MISSENSE | |
859128 | Pathogenic: Catecholaminergic polymorphic ventricular tachycardia | 115,726,996(-) |
G/A NM_001232.4(CASQ2):c.733C>T (p.Gln245Ter) |
NONSENSE |
Variant ID | Type | Subtype | PubMed ID |
---|---|---|---|
esv2458208 | CNV | insertion | 19546169 |
esv2760632 | CNV | gain | 21179565 |
esv27976 | CNV | loss | 19812545 |
esv3430953 | CNV | insertion | 20981092 |
esv3587292 | CNV | loss | 21293372 |
nsv1000760 | CNV | gain | 25217958 |
nsv1116608 | CNV | tandem duplication | 24896259 |
nsv508559 | CNV | deletion | 20534489 |
nsv524619 | CNV | gain | 19592680 |
nsv547585 | CNV | gain | 21841781 |
nsv831115 | CNV | gain | 17160897 |
Disorder | Aliases | PubMed IDs |
---|---|---|
ventricular tachycardia, catecholaminergic polymorphic, 2 |
|
|
catecholaminergic polymorphic ventricular tachycardia |
|
|
ventricular tachycardia, catecholaminergic polymorphic, 1, with or without atrial dysfunction and/or dilated cardiomyopathy |
|
|
cardiac arrest |
|
|
wolff-parkinson-white syndrome |
|
|