rs200785571

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001365536.1(SCN9A):​c.5956A>G​(p.Ser1986Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000515 in 1,592,248 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 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. S1986N) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000050 ( 0 hom. )

Consequence

SCN9A
NM_001365536.1 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 0.815

Publications

0 publications found
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 was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.054234058).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCN9ANM_001365536.1 linkc.5956A>G p.Ser1986Gly missense_variant Exon 27 of 27 ENST00000642356.2 NP_001352465.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCN9AENST00000642356.2 linkc.5956A>G p.Ser1986Gly missense_variant Exon 27 of 27 NM_001365536.1 ENSP00000495601.1 Q15858-1
SCN9AENST00000303354.11 linkc.5956A>G p.Ser1986Gly missense_variant Exon 27 of 27 5 ENSP00000304748.7 Q15858-1
SCN9AENST00000409672.5 linkc.5923A>G p.Ser1975Gly missense_variant Exon 27 of 27 5 ENSP00000386306.1 Q15858-3
SCN9AENST00000645907.1 linkc.5923A>G p.Ser1975Gly missense_variant Exon 27 of 27 ENSP00000495983.1 Q15858-4

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152204
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000394
AC:
9
AN:
228244
AF XY:
0.0000243
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000655
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000669
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000500
AC:
72
AN:
1439926
Hom.:
0
Cov.:
31
AF XY:
0.0000392
AC XY:
28
AN XY:
714390
show subpopulations
African (AFR)
AF:
0.0000309
AC:
1
AN:
32318
American (AMR)
AF:
0.0000248
AC:
1
AN:
40296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25382
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39526
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81474
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52772
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5658
European-Non Finnish (NFE)
AF:
0.0000589
AC:
65
AN:
1102934
Other (OTH)
AF:
0.0000839
AC:
5
AN:
59566
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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
AF:
0.0000657
AC:
10
AN:
152322
Hom.:
0
Cov.:
32
AF XY:
0.0000671
AC XY:
5
AN XY:
74472
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41572
American (AMR)
AF:
0.00
AC:
0
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68030
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.0000661
Hom.:
0
Bravo
AF:
0.0000982
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000243
AC:
2
ExAC
AF:
0.0000331
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:3
Apr 16, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The SCN9A c.5923A>G; p.Ser1975Gly variant (rs200785571), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 471159). This variant is found in the non-Finnish European population with an allele frequency of 0.007% (8/120,012 alleles) in the Genome Aggregation Database (v2.1.1). Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.279). Due to limited information, the clinical significance of this variant is uncertain at this time. -

Apr 30, 2020
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 02, 2023
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Uncertain:1
Dec 19, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.5923A>G (p.S1975G) alteration is located in exon 27 (coding exon 26) of the SCN9A gene. This alteration results from a A to G substitution at nucleotide position 5923, causing the serine (S) at amino acid position 1975 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Generalized epilepsy with febrile seizures plus, type 7;C2752089:Neuropathy, hereditary sensory and autonomic, type 2A Uncertain:1
Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces serine, which is neutral and polar, with glycine, which is neutral and non-polar, at codon 1975 of the SCN9A protein (p.Ser1975Gly). This variant is present in population databases (rs200785571, gnomAD 0.008%). This variant has not been reported in the literature in individuals affected with SCN9A-related conditions. ClinVar contains an entry for this variant (Variation ID: 471159). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Not Available". The glycine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.058
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
17
DANN
Benign
0.94
DEOGEN2
Benign
0.29
.;T;.;.;T;.
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.44
FATHMM_MKL
Benign
0.26
N
LIST_S2
Benign
0.53
T;.;T;T;T;T
M_CAP
Benign
0.041
D
MetaRNN
Benign
0.054
T;T;T;T;T;T
MetaSVM
Uncertain
-0.13
T
MutationAssessor
Benign
0.34
.;N;.;.;N;N
PhyloP100
0.81
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-1.7
N;.;.;.;.;N
REVEL
Benign
0.28
Sift
Benign
0.041
D;.;.;.;.;D
Sift4G
Benign
0.41
T;T;.;.;.;T
Vest4
0.036
MVP
0.30
MPC
0.11
ClinPred
0.030
T
GERP RS
3.4
Varity_R
0.11
gMVP
0.15
Mutation Taster
=35/65
disease causing

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

Other links and lift over

dbSNP: rs200785571; hg19: chr2-167055193; API