chr3-38761315-T-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006514.4(SCN10A):c.760A>G(p.Ile254Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,684 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign 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. I254M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SCN10A
NM_006514.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.114

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

sodium channelopathy-related small fiber neuropathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
episodic pain syndrome, familial, 2
Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Ambry Genetics
Brugada syndrome
Inheritance: Unknown Classification: LIMITED Submitted by: Genomics England PanelApp
Brugada syndrome 1
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

SCN10A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08630958).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCN10A	NM_006514.4 link	c.760A>G	p.Ile254Val	missense_variant	Exon 7 of 28	ENST00000449082.3	NP_006505.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
SCN10A	ENST00000449082.3 link	c.760A>G	p.Ile254Val	missense_variant	Exon 7 of 28	1	NM_006514.4	ENSP00000390600.2
SCN10A	ENST00000643924.1 link	c.760A>G	p.Ile254Val	missense_variant	Exon 6 of 27			ENSP00000495595.1
SCN10A	ENST00000655275.1 link	c.760A>G	p.Ile254Val	missense_variant	Exon 7 of 28			ENSP00000499510.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000119

AC:

AN:

251220

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461684

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727140

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000756

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86198

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111884

Other (OTH)

AF:

0.00

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Brugada syndrome

Uncertain:1

Jan 13, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. 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. This variant has not been reported in the literature in individuals with SCN10A-related conditions. This variant is present in population databases (rs766143752, ExAC 0.01%). This sequence change replaces isoleucine with valine at codon 254 of the SCN10A protein (p.Ile254Val). The isoleucine residue is weakly conserved and there is a small physicochemical difference between isoleucine and valine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.054

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.34

CADD

Benign

0.97

(source)

DANN

Benign

0.39

DEOGEN2

Benign

0.36

T;.;T;.

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.017

LIST_S2

Benign

0.76

.;T;T;T

M_CAP

Benign

0.046

MetaRNN

Benign

0.086

T;T;T;T

MetaSVM

Uncertain

-0.22

MutationAssessor

Benign

-0.98

N;.;N;.

PhyloP100

0.11

PrimateAI

Benign

0.29

PROVEAN

Benign

0.76

N;.;.;.

REVEL

Uncertain

0.37

Sift

Benign

1.0

T;.;.;.

Sift4G

Benign

1.0

T;.;.;.

Polyphen

0.0

B;.;B;.

Vest4

0.095

MutPred

0.70

Gain of catalytic residue at I254 (P = 0.3583);Gain of catalytic residue at I254 (P = 0.3583);Gain of catalytic residue at I254 (P = 0.3583);Gain of catalytic residue at I254 (P = 0.3583);

MVP

0.38

MPC

0.053

ClinPred

0.034

GERP RS

-3.8

Varity_R

0.019

gMVP

0.52

Mutation Taster

=94/6

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over