Aliases for ITPR1 Gene
- Inositol 1,4,5-Trisphosphate Receptor Type 1 2 3 5
- Protein Phosphatase 1, Regulatory Subunit 94 2 3
- Type 1 Inositol 1,4,5-Trisphosphate Receptor 3 4
- Type 1 InsP3 Receptor 3 4
- INSP3R1 3 4
- IP3R 1 3 4
- Inositol 1,4,5-Trisphosphate Receptor, Type 1 2
- Inositol 1,4,5-Triphosphate Receptor, Type 1 3
- Spinocerebellar Ataxia 15 2
- Spinocerebellar Ataxia 16 2
- Spinocerebellar Ataxia 29 2
External Ids for ITPR1 Gene
Previous HGNC Symbols for ITPR1 Gene
Previous GeneCards Identifiers for ITPR1 Gene
This gene encodes an intracellular receptor for inositol 1,4,5-trisphosphate. Upon stimulation by inositol 1,4,5-trisphosphate, this receptor mediates calcium release from the endoplasmic reticulum. Mutations in this gene cause spinocerebellar ataxia type 15, a disease associated with an heterogeneous group of cerebellar disorders. Multiple transcript variants have been identified for this gene. [provided by RefSeq, Nov 2009]
GeneCards Summary for ITPR1 Gene
ITPR1 (Inositol 1,4,5-Trisphosphate Receptor Type 1) is a Protein Coding gene. Diseases associated with ITPR1 include Spinocerebellar Ataxia 29, Congenital Nonprogressive and Spinocerebellar Ataxia 15. Among its related pathways are ICos-ICosL Pathway in T-Helper Cell and Interleukin-3, 5 and GM-CSF signaling. GO annotations related to this gene include ion channel activity and calcium channel activity. An important paralog of this gene is ITPR2.
UniProtKB/Swiss-Prot for ITPR1 Gene
Intracellular channel that mediates calcium release from the endoplasmic reticulum following stimulation by inositol 1,4,5-trisphosphate. Involved in the regulation of epithelial secretion of electrolytes and fluid through the interaction with AHCYL1 (By similarity). Plays a role in ER stress-induced apoptosis. Cytoplasmic calcium released from the ER triggers apoptosis by the activation of CaM kinase II, eventually leading to the activation of downstream apoptosis pathways (By similarity).
Inositol 1,4,5-trisphosphate (IP3) receptors are a form of ligand-gated ion channels that are activated by cytosolic Ca2+ and IP3. They are localized to intracellular membranes, such as the endoplasmic reticulum, and mediate the mobilization of intracellular Ca2+ stores.