rs80356477

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PP3_Moderate

The NM_001365536.1(SCN9A):​c.2620G>T​(p.Ala874Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. A874P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SCN9A
NM_001365536.1 missense

Scores

10
6
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.74

Publications

16 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: Uncertain_significance. The variant received 4 ACMG points.

PM1
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in NM_001365536.1
PP3
MetaRNN computational evidence supports a deleterious effect, 0.905

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001365536.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SCN9A
NM_001365536.1
MANE Select
c.2620G>Tp.Ala874Ser
missense
Exon 16 of 27NP_001352465.1
SCN9A
NM_002977.4
c.2587G>Tp.Ala863Ser
missense
Exon 16 of 27NP_002968.2
SCN1A-AS1
NR_110260.1
n.1019C>A
non_coding_transcript_exon
Exon 8 of 12

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SCN9A
ENST00000642356.2
MANE Select
c.2620G>Tp.Ala874Ser
missense
Exon 16 of 27ENSP00000495601.1
SCN9A
ENST00000303354.11
TSL:5
c.2620G>Tp.Ala874Ser
missense
Exon 16 of 27ENSP00000304748.7
SCN9A
ENST00000409672.5
TSL:5
c.2587G>Tp.Ala863Ser
missense
Exon 16 of 27ENSP00000386306.1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251332
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000410
AC:
6
AN:
1461822
Hom.:
0
Cov.:
31
AF XY:
0.00000550
AC XY:
4
AN XY:
727220
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33474
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000540
AC:
6
AN:
1111958
Other (OTH)
AF:
0.00
AC:
0
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Generalized epilepsy with febrile seizures plus, type 7;C2752089:Neuropathy, hereditary sensory and autonomic, type 2A (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.35
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.34
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.77
D
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.83
T
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.90
D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
2.9
M
PhyloP100
7.7
PrimateAI
Pathogenic
0.91
D
PROVEAN
Uncertain
-2.9
D
REVEL
Pathogenic
0.85
Sift
Pathogenic
0.0
D
Sift4G
Benign
0.13
T
Vest4
0.70
MutPred
0.75
Loss of stability (P = 0.3174)
MVP
0.89
MPC
0.40
ClinPred
0.91
D
GERP RS
5.5
Varity_R
0.61
gMVP
0.87
Mutation Taster
=21/79
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs80356477; hg19: chr2-167133747; API