SSTR2
protein-codingsomatostatin receptor 2, the group of Somatostatin receptors
Gene summary
Somatostatin acts at many sites to inhibit the release of many hormones and other secretory proteins. The biologic effects of somatostatin are probably mediated by a family of G protein-coupled receptors that are expressed in a tissue-specific manner. SSTR2 is a member of the superfamily of receptors having seven transmembrane segments and is expressed in highest levels in cerebrum and kidney. [provided by RefSeq, Jul 2008]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~11.6 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
No GenCC data available for this gene.
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to SSTR2 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_001050.3. Only rare variants are included.
We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.
Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 1 | 1 | ||||
| missense | 38 | 2 | 40 | |||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 0 | |||||
| Total | 0 | 0 | 38 | 3 | 0 | 41 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_001041.1 | 1 | MANE Select | |
| Ensembl | ENSP00000350198.2 | 1 | MANE Select | |
| Ensembl | ENSP00000760380.1 | 1 | Standard | |
| Ensembl | ENSP00000808576.1 | 1 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Gastric acid secretion - Homo sapiens (human)
- cAMP signaling pathway - Homo sapiens (human)
- Neuroactive ligand-receptor interaction - Homo sapiens (human)
- Proton Pump Inhibitor Pathway, Pharmacodynamics
- GPCRs, Other
Biological Process
- regulation of muscle contraction
- G protein-coupled receptor signaling pathway
- G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger
- adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway
- neuropeptide signaling pathway
Molecular Function
- G protein-coupled receptor activity
- somatostatin receptor activity
- protein binding
- PDZ domain binding
- peptide binding
Cellular Component
- cytosol
- plasma membrane
- integral component of plasma membrane
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000357585
- Coding exons
- 1
- Length
- 6035
- Individuals with no LoFs
- 125743
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 3
- Defined
- 125746
- p
- 0.0000119
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 1.04 | 169 | 212 | 0.799 | 0.0000115 | 2436 |
| Missense (PolyPhen) | 37 | 80.005 | 0.46247 | 987 | ||
| Synonymous | -0.501 | 90 | 84.2 | 1.07 | 0.00000466 | 762 |
| Loss of Function | 2.31 | 2 | 9.80 | 0.204 | 7.02e-7 | 105 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0.000029 | 0.000029 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0 | 0.0 | absent |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.0000088 | 0.0000088 | rare |
| South Asian | 0.000033 | 0.000033 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Receptor for somatostatin-14 and -28. This receptor is coupled via pertussis toxin sensitive G proteins to inhibition of adenylyl cyclase. In addition it stimulates phosphotyrosine phosphatase and PLC via pertussis toxin insensitive as well as sensitive G proteins. Inhibits calcium entry by suppressing voltage-dependent calcium channels. Acts as the functionally dominant somatostatin receptor in pancreatic alpha- and beta-cells where it mediates the inhibitory effect of somatostatin-14 on hormone secretion. Inhibits cell growth through enhancement of MAPK1 and MAPK2 phosphorylation and subsequent up-regulation of CDKN1B. Stimulates neuronal migration and axon outgrowth and may participate in neuron development and maturation during brain development. Mediates negative regulation of insulin receptor signaling through PTPN6. Inactivates SSTR3 receptor function following heterodimerization. {ECO:0000269|PubMed:15231824, ECO:0000269|PubMed:18653781, ECO:0000269|PubMed:19434240, ECO:0000269|PubMed:22495673, ECO:0000269|PubMed:22932785}.;
Recessive Scores
- pRec
- 0.271
Intolerance Scores
- LoFtool
- 0.387
- RVIS EVS
- -0.36
- RVIS percentile EVS
- 28.93
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.801
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |