ITPR2 - inositol 1,4,5-trisphosphate receptor type 2 Gene
Also Known as ANHD; IP3R2; CFAP48; INSP3R2
Species: Homo sapiens
About ITPR2
This gene has 10 transcripts (splice variants), 215 orthologues, 5 paralogues and is associated with 2 phenotypes. Ubiquitous expression in liver (RPKM 15.0), kidney (RPKM 7.5) and 25 other tissues.
Summary
The protein encoded by this gene belongs to the inositol 1,4,5-triphosphate receptor family, whose members are second messenger intracellular calcium release channels. These proteins mediate a rise in cytoplasmic calcium in response to receptor activated production of inositol triphosphate. Inositol triphosphate receptor-mediated signaling is involved in many processes including cell migration, cell division, smooth muscle contraction, and Neuronal Signaling. This protein is a type 2 receptor that consists of a cytoplasmic amino-terminus that binds inositol triphosphate, six membrane-spanning helices that contribute to the ion pore, and a short cytoplasmic carboxy-terminus. A mutation in this gene has been associated with anhidrosis, suggesting that intracellular calcium release mediated by this protein is required for eccrine sweat production. [provided by RefSeq, Apr 2015]
ITPR2 Products (3)
| mRNA | Protein | Name |
|---|---|---|
| NM_001414174.1 | NP_001401103.1 | inositol 1,4,5-trisphosphate receptor type 2 isoform 2 |
| NM_001414175.1 | NP_001401104.1 | inositol 1,4,5-trisphosphate receptor type 2 isoform 3 |
| NM_002223.4 | NP_002214.2 | inositol 1,4,5-trisphosphate receptor type 2 isoform 1 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables inositol 1,4,5-trisphosphate-gated calcium channel activity |
IMP
IMP: Inferred from mutant phenotype
|
25329695 | GOA |
| enables scaffold protein binding |
IPI
IPI: Inferred from physical interaction
|
11782428 | GOA |
| enables transmembrane transporter binding |
IPI
IPI: Inferred from physical interaction
|
18068335 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in response to hypoxia |
IDA
IDA: Inferred from direct assay
|
19120137 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in plasma membrane |
IDA
IDA: Inferred from direct assay
|
10828023 | GOA |
| part of receptor complex |
IDA
IDA: Inferred from direct assay
|
23382219 | GOA |
| located in sarcoplasmic reticulum membrane |
IMP
IMP: Inferred from mutant phenotype
|
10828023 | GOA |
ITPR2 Protein Structure
Ins145_P3_rec: Inositol 1,4,5-trisphosphate/ryanodine receptor (5 - 227)
MIR: MIR domain (233 - 431)
RYDR_ITPR: RIH domain (472 - 675)
RYDR_ITPR: RIH domain (1187 - 1352)
RIH_assoc: RyR and IP3R Homology associated (1913 - 2026)
Ion_trans: Ion transport protein (2336 - 2540)
- 0
- 500
- 1000
- 1500
- 2000
- 2500
- 2701 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
inositol 1,4,5-trisphosphate receptor type 2 |
|
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Anhidrosis, Isolated, With Normal Sweat Glands |
|
|
| Anhidrosis |
|
|
| Gillespie Syndrome |
|
|
| Hemochromatosis, Type 1 |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Macaca mulatta | ITPR2 | VGNC | VGNC:73805 |
| Felis catus | ITPR2 | VGNC | VGNC:67870 |
| Mus musculus | ITPR2 | MGD | MGI:99418 |
| Bos taurus | ITPR2 | VGNC | VGNC:30347 |
| Canis familiaris | ITPR2 | VGNC | VGNC:42158 |
| Rattus norvegicus | ITPR2 | RGD | RGD:69649 |
| Others | ITPR2 | NCBI |