rs377632429

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_006922.4(SCN3A):​c.3478G>A​(p.Glu1160Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,613,490 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 (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

SCN3A
NM_006922.4 missense

Scores

6
8
4

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 7.26

Publications

9 publications found
Variant links:
Genes affected
SCN3A (HGNC:10590): (sodium voltage-gated channel alpha subunit 3) Voltage-gated sodium channels are transmembrane glycoprotein complexes composed of a large alpha subunit with 24 transmembrane domains and one or more regulatory beta subunits. They are responsible for the generation and propagation of action potentials in neurons and muscle. This gene encodes one member of the sodium channel alpha subunit gene family, and is found in a cluster of five alpha subunit genes on chromosome 2. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
SCN3A Gene-Disease associations (from GenCC):
  • genetic developmental and epileptic encephalopathy
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Illumina, ClinGen, PanelApp Australia
  • developmental and epileptic encephalopathy, 62
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • epilepsy, familial focal, with variable foci 4
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • undetermined early-onset epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.878
BS2
High AC in GnomAdExome4 at 36 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006922.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SCN3A
NM_006922.4
MANE Select
c.3478G>Ap.Glu1160Lys
missense
Exon 19 of 28NP_008853.3
SCN3A
NM_001081676.2
c.3331G>Ap.Glu1111Lys
missense
Exon 19 of 28NP_001075145.1Q9NY46-4
SCN3A
NM_001081677.2
c.3331G>Ap.Glu1111Lys
missense
Exon 19 of 28NP_001075146.1Q9NY46-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SCN3A
ENST00000283254.12
TSL:1 MANE Select
c.3478G>Ap.Glu1160Lys
missense
Exon 19 of 28ENSP00000283254.7Q9NY46-3
SCN3A
ENST00000409101.7
TSL:1
c.3331G>Ap.Glu1111Lys
missense
Exon 19 of 28ENSP00000386726.3Q9NY46-2
SCN3A
ENST00000706067.1
c.3427G>Ap.Glu1143Lys
missense
Exon 19 of 28ENSP00000516211.1A0A994J5P2

Frequencies

GnomAD3 genomes
AF:
0.0000264
AC:
4
AN:
151700
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000197
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000199
AC:
5
AN:
251354
AF XY:
0.0000294
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.0000246
AC:
36
AN:
1461790
Hom.:
0
Cov.:
32
AF XY:
0.0000261
AC XY:
19
AN XY:
727200
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.000134
AC:
6
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53412
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000234
AC:
26
AN:
1111940
Other (OTH)
AF:
0.00
AC:
0
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.438
Heterozygous variant carriers
0
2
4
7
9
11
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
AF:
0.0000264
AC:
4
AN:
151700
Hom.:
0
Cov.:
31
AF XY:
0.0000270
AC XY:
2
AN XY:
74084
show subpopulations
African (AFR)
AF:
0.0000242
AC:
1
AN:
41256
American (AMR)
AF:
0.000197
AC:
3
AN:
15208
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4790
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10544
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67952
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.512
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000226
Hom.:
0
Bravo
AF:
0.0000529
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
Epilepsy, familial focal, with variable foci 4 (1)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.069
BayesDel_addAF
Benign
-0.055
T
BayesDel_noAF
Benign
-0.090
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.63
D
Eigen
Pathogenic
0.73
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.90
D
M_CAP
Pathogenic
0.70
D
MetaRNN
Pathogenic
0.88
D
MetaSVM
Uncertain
0.62
D
MutationAssessor
Pathogenic
3.1
M
PhyloP100
7.3
PrimateAI
Uncertain
0.51
T
PROVEAN
Uncertain
-3.1
D
REVEL
Pathogenic
0.85
Sift
Uncertain
0.0090
D
Sift4G
Benign
0.35
T
Polyphen
0.92
P
Vest4
0.45
MVP
0.57
MPC
0.94
ClinPred
0.86
D
GERP RS
5.1
Varity_R
0.46
gMVP
0.69
Mutation Taster
=3/97
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: rs377632429; hg19: chr2-165972001; COSMIC: COSV51818961; API