rs763423536
Variant summary
Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_001365536.1(SCN9A):c.3868C>T(p.Arg1290Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000035 in 1,429,484 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1290Q) has been classified as Uncertain significance.
Frequency
Consequence
NM_001365536.1 missense
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Likely_pathogenic. The variant received 6 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| SCN9A | NM_001365536.1 | c.3868C>T | p.Arg1290Trp | missense_variant | Exon 21 of 27 | ENST00000642356.2 | NP_001352465.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| SCN9A | ENST00000642356.2 | c.3868C>T | p.Arg1290Trp | missense_variant | Exon 21 of 27 | NM_001365536.1 | ENSP00000495601.1 | |||
| SCN9A | ENST00000303354.11 | c.3868C>T | p.Arg1290Trp | missense_variant | Exon 21 of 27 | 5 | ENSP00000304748.7 | |||
| SCN9A | ENST00000409672.5 | c.3835C>T | p.Arg1279Trp | missense_variant | Exon 21 of 27 | 5 | ENSP00000386306.1 | |||
| SCN9A | ENST00000645907.1 | c.3835C>T | p.Arg1279Trp | missense_variant | Exon 21 of 27 | ENSP00000495983.1 |
Frequencies
GnomAD3 genomes Cov.: 31
GnomAD2 exomes AF: 0.00000897 AC: 2AN: 222922 AF XY: 0.0000164 show subpopulations
GnomAD4 exome AF: 0.00000350 AC: 5AN: 1429484Hom.: 0 Cov.: 28 AF XY: 0.00000423 AC XY: 3AN XY: 709960 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 31
ClinVar
Submissions by phenotype
Generalized epilepsy with febrile seizures plus, type 7;C2752089:Neuropathy, hereditary sensory and autonomic, type 2A Uncertain:1
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1279 of the SCN9A protein (p.Arg1279Trp). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with SCN9A-related conditions. ClinVar contains an entry for this variant (Variation ID: 471117). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on SCN9A protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
not provided Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at