3-38698511-G-T

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_006514.4(SCN10A):​c.4709C>A​(p.Thr1570Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,828 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1570M) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SCN10A
NM_006514.4 missense

Scores

14
4
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 8.04

Publications

7 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.96

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCN10ANM_006514.4 linkc.4709C>A p.Thr1570Lys missense_variant Exon 28 of 28 ENST00000449082.3 NP_006505.4 Q9Y5Y9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCN10AENST00000449082.3 linkc.4709C>A p.Thr1570Lys missense_variant Exon 28 of 28 1 NM_006514.4 ENSP00000390600.2 Q9Y5Y9
SCN10AENST00000643924.1 linkc.4706C>A p.Thr1569Lys missense_variant Exon 27 of 27 ENSP00000495595.1 A0A2R8Y6J6
SCN10AENST00000655275.1 linkc.4733C>A p.Thr1578Lys missense_variant Exon 28 of 28 ENSP00000499510.1 A0A590UJM0

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000399
AC:
1
AN:
250940
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000137
AC:
2
AN:
1461828
Hom.:
0
Cov.:
35
AF XY:
0.00
AC XY:
0
AN XY:
727206
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111958
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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.:
31
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Brugada syndrome Uncertain:1
May 23, 2023
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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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. ClinVar contains an entry for this variant (Variation ID: 1404251). This missense change has been observed in individual(s) with clinical features of SCN10A-related conditions (PMID: 28078312). This variant is present in population databases (no rsID available, gnomAD 0.003%). This sequence change replaces threonine, which is neutral and polar, with lysine, which is basic and polar, at codon 1570 of the SCN10A protein (p.Thr1570Lys). -

Cardiovascular phenotype Uncertain:1
Apr 20, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.T1570K variant (also known as c.4709C>A), located in coding exon 27 of the SCN10A gene, results from a C to A substitution at nucleotide position 4709. The threonine at codon 1570 is replaced by lysine, an amino acid with similar properties. 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: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.74
BayesDel_addAF
Pathogenic
0.49
D
BayesDel_noAF
Pathogenic
0.55
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.87
D;.;D;.
Eigen
Pathogenic
0.70
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
0.98
.;D;D;D
M_CAP
Uncertain
0.22
D
MetaRNN
Pathogenic
0.96
D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.3
M;.;M;.
PhyloP100
8.0
PrimateAI
Uncertain
0.63
T
PROVEAN
Pathogenic
-5.3
D;.;.;.
REVEL
Pathogenic
0.91
Sift
Pathogenic
0.0
D;.;.;.
Sift4G
Pathogenic
0.0
D;.;.;.
Polyphen
1.0
D;.;D;.
Vest4
0.80
MutPred
0.81
Gain of ubiquitination at T1570 (P = 0.0325);Gain of ubiquitination at T1570 (P = 0.0325);Gain of ubiquitination at T1570 (P = 0.0325);.;
MVP
0.97
MPC
0.40
ClinPred
1.0
D
GERP RS
5.2
Varity_R
0.95
gMVP
0.97
Mutation Taster
=16/84
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.26
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.26
Position offset: -2

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

Publications

Other links and lift over

dbSNP: rs772484960; hg19: chr3-38740002; COSMIC: COSV101479190; API