rs377492327

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_006514.4(SCN10A):c.4639G>T(p.Val1547Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000118 in 1,610,646 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

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

SCN10A
NM_006514.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 4.10

Variant links:

Genes affected

SCN10A (HGNC:10582): (sodium voltage-gated channel alpha subunit 10) The protein encoded by this gene is a tetrodotoxin-resistant voltage-gated sodium channel alpha subunit. The properties of the channel formed by the encoded transmembrane protein can be altered by interaction with different beta subunits. This protein may be involved in the onset of pain associated with peripheral neuropathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

SCN10A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.863

BS2

High AC in GnomAd at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SCN10A	NM_006514.4 linkuse as main transcript	c.4639G>T	p.Val1547Leu	missense_variant	27/28	ENST00000449082.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
SCN10A	ENST00000449082.3 linkuse as main transcript	c.4639G>T	p.Val1547Leu	missense_variant	27/28	1	NM_006514.4	P4
SCN10A	ENST00000655275.1 linkuse as main transcript	c.4663G>T	p.Val1555Leu	missense_variant	27/28
SCN10A	ENST00000643924.1 linkuse as main transcript	c.4636G>T	p.Val1546Leu	missense_variant	26/27			A1

Frequencies

GnomAD3 genomes

AF:

0.0000788

AC:

AN:

152246

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000121

AC:

AN:

247844

Hom.:

AF XY:

0.00000747

AC XY:

AN XY:

133822

show subpopulations

Gnomad AFR exome

AF:

0.000124

Gnomad AMR exome

AF:

0.0000295

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000480

AC:

AN:

1458400

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

725148

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.0000225

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152246

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74382

show subpopulations

Gnomad4 AFR

AF:

0.000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000283

Hom.:

Bravo

AF:

0.0000756

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Brugada syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Aug 28, 2023

This sequence change replaces valine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 1547 of the SCN10A protein (p.Val1547Leu). This variant is present in population databases (rs377492327, gnomAD 0.01%). This missense change has been observed in individual(s) with sudden unexplained death (PMID: 29247119). ClinVar contains an entry for this variant (Variation ID: 451988). 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 not 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

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Oct 12, 2023

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 29247119) -

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 14, 2023

The p.V1547L variant (also known as c.4639G>T), located in coding exon 26 of the SCN10A gene, results from a G to T substitution at nucleotide position 4639. The valine at codon 1547 is replaced by leucine, an amino acid with highly similar properties. This variant has been detected in a sudden death cohort; however, details were limited (Lin Y et al. Circ Cardiovasc Genet, 2017 Dec;10:). This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.78

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Pathogenic

0.22

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Pathogenic

0.86

D;.;D;.

Eigen

Uncertain

0.24

Eigen_PC

Benign

0.081

FATHMM_MKL

Pathogenic

0.99

M_CAP

Pathogenic

0.35

MetaRNN

Pathogenic

0.86

D;D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Uncertain

2.8

M;.;M;.

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-2.7

D;.;.;.

REVEL

Pathogenic

0.73

Sift

Uncertain

0.0010

D;.;.;.

Sift4G

Uncertain

0.015

D;.;.;.

Polyphen

0.89

P;.;P;.

Vest4

0.69

MutPred

0.68

Loss of catalytic residue at V1547 (P = 0.1859);Loss of catalytic residue at V1547 (P = 0.1859);Loss of catalytic residue at V1547 (P = 0.1859);.;

MVP

0.71

MPC

0.086

ClinPred

0.87

GERP RS

3.9

Varity_R

0.52

gMVP

0.92

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over