rs779316495
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2
The NM_006514.4(SCN10A):c.3778G>T(p.Ala1260Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000576 in 1,613,734 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 (★★). Synonymous variant affecting the same amino acid position (i.e. A1260A) has been classified as Likely benign.
Frequency
Consequence
NM_006514.4 missense
Scores
Clinical Significance
Conservation
Publications
- sodium channelopathy-related small fiber neuropathyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- episodic pain syndrome, familial, 2Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Ambry Genetics
- Brugada syndromeInheritance: Unknown Classification: LIMITED Submitted by: Genomics England PanelApp
- Brugada syndrome 1Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| SCN10A | NM_006514.4 | c.3778G>T | p.Ala1260Ser | missense_variant | Exon 22 of 28 | ENST00000449082.3 | NP_006505.4 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| SCN10A | ENST00000449082.3 | c.3778G>T | p.Ala1260Ser | missense_variant | Exon 22 of 28 | 1 | NM_006514.4 | ENSP00000390600.2 | ||
| SCN10A | ENST00000643924.1 | c.3775G>T | p.Ala1259Ser | missense_variant | Exon 21 of 27 | ENSP00000495595.1 | ||||
| SCN10A | ENST00000655275.1 | c.3802G>T | p.Ala1268Ser | missense_variant | Exon 22 of 28 | ENSP00000499510.1 |
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152214Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000159 AC: 4AN: 251292 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.0000595 AC: 87AN: 1461520Hom.: 0 Cov.: 30 AF XY: 0.0000536 AC XY: 39AN XY: 727048 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152214Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74362 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Brugada syndrome Uncertain:1
This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 1260 of the SCN10A protein (p.Ala1260Ser). This variant is present in population databases (rs779316495, gnomAD 0.004%). 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: 463253). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt SCN10A 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
Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Cardiovascular phenotype Uncertain:1
The p.A1260S variant (also known as c.3778G>T), located in coding exon 21 of the SCN10A gene, results from a G to T substitution at nucleotide position 3778. The alanine at codon 1260 is replaced by serine, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at