rs747044382
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PP3_StrongBS2
The NM_006514.4(SCN10A):c.3766C>T(p.Arg1256Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,613,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_006514.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
SCN10A | ENST00000449082.3 | c.3766C>T | p.Arg1256Trp | missense_variant | Exon 22 of 28 | 1 | NM_006514.4 | ENSP00000390600.2 | ||
SCN10A | ENST00000643924.1 | c.3763C>T | p.Arg1255Trp | missense_variant | Exon 21 of 27 | ENSP00000495595.1 | ||||
SCN10A | ENST00000655275.1 | c.3790C>T | p.Arg1264Trp | missense_variant | Exon 22 of 28 | ENSP00000499510.1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152234Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251328Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135826
GnomAD4 exome AF: 0.0000103 AC: 15AN: 1461620Hom.: 0 Cov.: 31 AF XY: 0.00000825 AC XY: 6AN XY: 727102
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152234Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74374
ClinVar
Submissions by phenotype
not provided Uncertain:1
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Brugada syndrome Uncertain:1
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1256 of the SCN10A protein (p.Arg1256Trp). This variant is present in population databases (rs747044382, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with SCN10A-related conditions. ClinVar contains an entry for this variant (Variation ID: 532125). 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) indicates that this missense variant is expected to disrupt SCN10A protein function with a positive predictive value of 80%. 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. -
Cardiovascular phenotype Uncertain:1
The p.R1256W variant (also known as c.3766C>T), located in coding exon 21 of the SCN10A gene, results from a C to T substitution at nucleotide position 3766. The arginine at codon 1256 is replaced by tryptophan, an amino acid with dissimilar properties. This variant was detected in an individual with small fiber neuropathy; however, clinical details were limited (Eijkenboom I et al. J Neurol Neurosurg Psychiatry, 2019 03;90:342-352). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. The evidence for this gene-disease relationship is limited; therefore, the clinical significance of this alteration is unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at