SNTB2
protein-codingsyntrophin beta 2, the group of PDZ domain containing
Gene summary
Dystrophin is a large, rod-like cytoskeletal protein found at the inner surface of muscle fibers. Dystrophin is missing in Duchenne Muscular Dystrophy patients and is present in reduced amounts in Becker Muscular Dystrophy patients. The protein encoded by this gene is a peripheral membrane protein found associated with dystrophin and dystrophin-related proteins. This gene is a member of the syntrophin gene family, which contains at least two other structurally-related genes. [provided by RefSeq, Jul 2008]
- SNT2B2
- SNTL
- D16S2531E
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~121.9 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 SNTB2 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_006750.4. 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 | 2 | 2 | ||||
| missense | 66 | 66 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 1 | ||||
| Total | 0 | 0 | 69 | 0 | 0 | 69 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_006741.1 | 7 | MANE Select | |
| Ensembl | ENSP00000338191.4 | 7 | MANE Select | |
| Ensembl | ENSP00000353686.5 | 3 | Standard | |
| Ensembl | ENSP00000436443.1 | 3 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Disopyramide Action Pathway
- Procainamide (Antiarrhythmic) Action Pathway
- Phenytoin (Antiarrhythmic) Action Pathway
- Fosphenytoin (Antiarrhythmic) Action Pathway
- Bopindolol Action Pathway
Molecular Function
- RNA binding
- actin binding
- structural molecule activity
- protein binding
- calmodulin binding
Cellular Component
- cytoplasm
- microtubule
- focal adhesion
- dystrophin-associated glycoprotein complex
- membrane
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000336278
- Coding exons
- 7
- Length
- 121924
- Individuals with no LoFs
- 125737
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 11
- Defined
- 125748
- p
- 0.0000437
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 2.32 | 156 | 262 | 0.596 | 0.0000136 | 3420 |
| Missense (PolyPhen) | 23 | 60.744 | 0.37864 | 692 | ||
| Synonymous | 0.965 | 95 | 108 | 0.882 | 0.00000604 | 1163 |
| Loss of Function | 2.36 | 9 | 20.5 | 0.439 | 0.00000118 | 223 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.00012 | 0.00012 | rare |
| Latino/Admixed American | 0.000029 | 0.000029 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0 | 0.0 | absent |
| Finnish | 0.000046 | 0.000046 | rare |
| European (Non-Finnish) | 0.000053 | 0.000053 | rare |
| South Asian | 0.000033 | 0.000033 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Adapter protein that binds to and probably organizes the subcellular localization of a variety of membrane proteins. May link various receptors to the actin cytoskeleton and the dystrophin glycoprotein complex. May play a role in the regulation of secretory granules via its interaction with PTPRN.;
Recessive Scores
- pRec
- 0.140
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.673
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |