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rs879253994

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PM5PP3_Strong

The NM_001365536.1(SCN9A):c.4928C>T(p.Ala1643Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,613,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1643E) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SCN9A
NM_001365536.1 missense

Scores

14
2
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.86
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_pathogenic. Variant got 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr2-166199711-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 245903.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.962

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SCN9ANM_001365536.1 linkuse as main transcriptc.4928C>T p.Ala1643Val missense_variant 27/27 ENST00000642356.2
SCN1A-AS1NR_110260.1 linkuse as main transcriptn.504G>A non_coding_transcript_exon_variant 4/12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SCN9AENST00000642356.2 linkuse as main transcriptc.4928C>T p.Ala1643Val missense_variant 27/27 NM_001365536.1 P1Q15858-1
SCN1A-AS1ENST00000651574.1 linkuse as main transcriptn.1182G>A non_coding_transcript_exon_variant 11/19

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152048
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251480
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461888
Hom.:
0
Cov.:
32
AF XY:
0.00000413
AC XY:
3
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152048
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74264
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
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
Bravo
AF:
0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.57
D
BayesDel_noAF
Pathogenic
0.58
Cadd
Uncertain
25
Dann
Pathogenic
1.0
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.90
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
D;.;D;D;D;D
M_CAP
Pathogenic
0.76
D
MetaRNN
Pathogenic
0.96
D;D;D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Uncertain
-3.6
D;.;.;.;.;D
REVEL
Pathogenic
0.94
Sift
Pathogenic
0.0
D;.;.;.;.;D
Sift4G
Pathogenic
0.0010
D;D;.;.;.;D
Vest4
0.72
MutPred
0.81
Gain of MoRF binding (P = 0.4007);.;Gain of MoRF binding (P = 0.4007);.;.;.;
MVP
0.95
MPC
0.56
ClinPred
1.0
D
GERP RS
5.7
Varity_R
0.81
gMVP
0.95

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: rs879253994; hg19: chr2-167056221; COSMIC: COSV100314603; API