rs184563685

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_001365536.1(SCN9A):​c.3403C>T​(p.Pro1135Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00015 in 1,612,588 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00072 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000091 ( 0 hom. )

Consequence

SCN9A
NM_001365536.1 missense

Scores

8
11

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:3

Conservation

PhyloP100: 0.996
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 Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.016751379).
BP6
Variant 2-166251834-G-A is Benign according to our data. Variant chr2-166251834-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 167658.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=4}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCN9ANM_001365536.1 linkc.3403C>T p.Pro1135Ser missense_variant Exon 18 of 27 ENST00000642356.2 NP_001352465.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCN9AENST00000642356.2 linkc.3403C>T p.Pro1135Ser missense_variant Exon 18 of 27 NM_001365536.1 ENSP00000495601.1 Q15858-1
SCN9AENST00000303354.11 linkc.3403C>T p.Pro1135Ser missense_variant Exon 18 of 27 5 ENSP00000304748.7 Q15858-1
SCN9AENST00000409672.5 linkc.3370C>T p.Pro1124Ser missense_variant Exon 18 of 27 5 ENSP00000386306.1 Q15858-3
SCN9AENST00000645907.1 linkc.3370C>T p.Pro1124Ser missense_variant Exon 18 of 27 ENSP00000495983.1 Q15858-4

Frequencies

GnomAD3 genomes
AF:
0.000717
AC:
109
AN:
151980
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00232
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000460
Gnomad ASJ
AF:
0.00144
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:
0.00
GnomAD3 exomes
AF:
0.000197
AC:
49
AN:
248130
Hom.:
0
AF XY:
0.000134
AC XY:
18
AN XY:
134580
show subpopulations
Gnomad AFR exome
AF:
0.00175
Gnomad AMR exome
AF:
0.000291
Gnomad ASJ exome
AF:
0.000697
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000890
Gnomad OTH exome
AF:
0.000666
GnomAD4 exome
AF:
0.0000911
AC:
133
AN:
1460490
Hom.:
0
Cov.:
31
AF XY:
0.0000674
AC XY:
49
AN XY:
726508
show subpopulations
Gnomad4 AFR exome
AF:
0.00206
Gnomad4 AMR exome
AF:
0.000269
Gnomad4 ASJ exome
AF:
0.00103
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.000717
AC:
109
AN:
152098
Hom.:
1
Cov.:
32
AF XY:
0.000713
AC XY:
53
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.00231
Gnomad4 AMR
AF:
0.000459
Gnomad4 ASJ
AF:
0.00144
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000166
Hom.:
0
Bravo
AF:
0.000786
ESP6500AA
AF:
0.00184
AC:
7
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000190
AC:
23
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:4
Nov 06, 2019
Revvity Omics, Revvity
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 06, 2024
Athena Diagnostics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Apr 15, 2014
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 02, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

not specified Benign:1
Jun 26, 2024
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: SCN9A c.3370C>T (p.Pro1124Ser) results in a non-conservative amino acid change located in the sodium ion transport-associated domain (IPR010526) of the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00015 in 1612588 control chromosomes, predominantly at a frequency of 0.0022 within the African or African-American subpopulation in the gnomAD database, including 1 homozygote (gnomAD v4.1.0). The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 2 - fold of the estimated maximal expected allele frequency for a pathogenic variant in SCN9A causing channelopathy-associated congenital insensitivity to pain, autosomal recessive phenotype (0.0011). To our knowledge, no occurrence of c.3370C>T in individuals affected with channelopathy-associated congenital insensitivity to pain and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 167658). Based on the evidence outlined above, the variant was classified as likely benign. -

Inborn genetic diseases Benign:1
Jul 26, 2021
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Generalized epilepsy with febrile seizures plus, type 7;C2752089:Neuropathy, hereditary sensory and autonomic, type 2A Benign:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.54
.;D;.;.;D;.
Eigen
Benign
-0.085
Eigen_PC
Benign
-0.065
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.88
D;.;D;D;D;D
M_CAP
Benign
0.079
D
MetaRNN
Benign
0.017
T;T;T;T;T;T
MetaSVM
Uncertain
0.17
D
MutationAssessor
Uncertain
2.1
.;M;.;.;M;M
PrimateAI
Benign
0.43
T
PROVEAN
Uncertain
-3.4
D;.;.;.;.;D
REVEL
Benign
0.19
Sift
Uncertain
0.0060
D;.;.;.;.;D
Sift4G
Benign
0.21
T;T;.;.;.;T
Vest4
0.31
MVP
0.62
MPC
0.28
ClinPred
0.033
T
GERP RS
4.0
Varity_R
0.20
gMVP
0.38

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: rs184563685; hg19: chr2-167108344; API