Variant 2-166204168-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001365536.1(SCN9A):c.4561A>G(p.Ile1521Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,232 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. I1521I) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SCN9A
NM_001365536.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.11

Variant links:

Genes affected

SCN9A (HGNC:10597): (sodium voltage-gated channel alpha subunit 9) This gene encodes a voltage-gated sodium channel which plays a significant role in nociception signaling. Mutations in this gene have been associated with primary erythermalgia, channelopathy-associated insensitivity to pain, and paroxysmal extreme pain disorder. [provided by RefSeq, Aug 2009]

SCN9A links:

SCN1A-AS1 (HGNC:54069): (SCN1A and SCN9A antisense RNA 1)

SCN1A-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SCN9A	NM_001365536.1 linkuse as main transcript	c.4561A>G	p.Ile1521Val	missense_variant	26/27	ENST00000642356.2
SCN1A-AS1	NR_110260.1 linkuse as main transcript	n.611+4350T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SCN9A	ENST00000642356.2 linkuse as main transcript	c.4561A>G	p.Ile1521Val	missense_variant	26/27		NM_001365536.1	P1	Q15858-1
SCN1A-AS1	ENST00000651574.1 linkuse as main transcript	n.1289+4350T>C		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000402

AC:

AN:

248600

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134888

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

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:

0.00000137

AC:

AN:

1460232

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726446

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Generalized epilepsy with febrile seizures plus, type 7;C2752089:Neuropathy, hereditary sensory and autonomic, type 2A

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jun 26, 2020

This variant is not present in population databases (ExAC no frequency). 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 missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C25"). This variant has not been reported in the literature in individuals with SCN9A-related disease. This sequence change replaces isoleucine with valine at codon 1510 of the SCN9A protein (p.Ile1510Val). The isoleucine residue is highly 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

0.11

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

0.030

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.59

.;D;.;.;D;.

Eigen

Uncertain

0.45

Eigen_PC

Uncertain

0.38

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.88

D;.;D;D;D;D

M_CAP

Uncertain

0.17

MetaRNN

Uncertain

0.55

D;D;D;D;D;D

MetaSVM

Pathogenic

0.96

MutationAssessor

Uncertain

2.9

.;M;.;.;M;M

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-0.85

N;.;.;.;.;N

REVEL

Pathogenic

0.65

Sift

Uncertain

0.022

D;.;.;.;.;D

Sift4G

Benign

0.083

T;T;.;.;.;T

Vest4

0.37

MutPred

0.49

Gain of catalytic residue at I1510 (P = 0.0598);.;Gain of catalytic residue at I1510 (P = 0.0598);.;.;.;

MVP

0.66

MPC

0.16

ClinPred

0.72

GERP RS

4.5

Varity_R

0.24

gMVP

0.67

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