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rs1301426130

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

2
11
4

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

Genome browser will be placed here

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
SCN9ANM_001365536.1 linkuse as main transcriptc.4561A>G p.Ile1521Val missense_variant 26/27 ENST00000642356.2
SCN1A-AS1NR_110260.1 linkuse as main transcriptn.611+4350T>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SCN9AENST00000642356.2 linkuse as main transcriptc.4561A>G p.Ile1521Val missense_variant 26/27 NM_001365536.1 P1Q15858-1
SCN1A-AS1ENST00000651574.1 linkuse as main transcriptn.1289+4350T>C intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248600
Hom.:
0
AF XY:
0.00
AC XY:
0
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:
2
AN:
1460232
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
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.:
32

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 submitterclinical testingInvitaeJun 26, 2020This 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
D
BayesDel_noAF
Uncertain
0.030
Cadd
Uncertain
24
Dann
Uncertain
1.0
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.88
D;.;D;D;D;D
M_CAP
Uncertain
0.17
D
MetaRNN
Uncertain
0.55
D;D;D;D;D;D
MetaSVM
Pathogenic
0.96
D
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.59
T
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
D
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.

Other links and lift over

dbSNP: rs1301426130; hg19: chr2-167060678; API