CASQ2 Gene Summary [Human]

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]

Details

Type
Protein Coding
Official Symbol
CASQ2
Official Name
calsequestrin 2 [Source:HGNC Symbol;Acc:HGNC:1513]
Ensembl ID
ENSG00000118729
Bio databases IDs NCBI: 845 Ensembl: ENSG00000118729
Aliases calsequestrin 2
Synonyms CALSEQUESTRIN 2, cardCSQ, cCSQ, Csq2, ESTM52, PDIB2
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human CASQ2 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Calsequestrin
  • calcium-dependent protein binding
  • thioredoxin-like domain
  • protein kinase C binding
  • Protein Disulfide Oxidoreductases and Other Proteins with a Thioredoxin fold
  • calcium ion binding
  • protein homodimerization
  • protein binding

Pathways

Biological processes and signaling networks where the CASQ2 gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • catecholaminergic polymorphic ventricular tachycardia type 1
  • tachycardia
  • catecholaminergic polymorphic ventricular tachycardia
  • atrial fibrillation
  • catecholaminergic polymorphic ventricular tachycardia type 2
  • Huntington disease
  • vesicoureteral reflux
  • cardiac hypertrophy
  • arrhythmia
  • rotator cuff injury
role in cell
  • morphology
  • function
  • organization
  • leakage
  • size
  • response by
  • abnormal morphology
  • homeostasis in
  • calcium sparks
  • contraction

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • junctional membrane complex
  • sarcoplasmic reticulum
  • myofilaments
  • Z line

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human CASQ2 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum
  • Purkinje myocyte to ventricular cardiac muscle cell signaling
  • regulation of membrane repolarization
  • negative regulation of potassium ion transport
  • striated muscle contraction
  • cardiac muscle contraction
  • cellular calcium ion homeostasis
  • negative regulation of ryanodine-sensitive calcium-release channel activity
  • protein polymerization
  • detection of calcium ion
  • regulation of heart rate
  • regulation of cell communication by electrical coupling
  • sequestering of calcium ion
  • cellular response to caffeine
  • regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion

Cellular Component

Where in the cell the gene product is active
  • Z disc
  • calcium channel complex
  • sarcoplasmic reticulum
  • cytoplasm
  • junctional sarcoplasmic reticulum membrane
  • sarcoplasmic reticulum lumen
  • sarcoplasmic reticulum membrane

Molecular Function

What the gene product does at the molecular level
  • protein binding
  • protein homodimerization activity
  • calcium ion binding
  • calcium-dependent protein binding

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.