rs76096365

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_006922.4(SCN3A):​c.5859C>T​(p.Ser1953Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00381 in 1,613,200 control chromosomes in the GnomAD database, including 205 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.021 ( 107 hom., cov: 32)
Exomes 𝑓: 0.0020 ( 98 hom. )

Consequence

SCN3A
NM_006922.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.923

Publications

1 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 Submitted by: Illumina, ClinGen
  • 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: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.5).
BP6
Variant 2-165090294-G-A is Benign according to our data. Variant chr2-165090294-G-A is described in ClinVar as Benign. ClinVar VariationId is 412600.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.923 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0704 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCN3ANM_006922.4 linkc.5859C>T p.Ser1953Ser synonymous_variant Exon 28 of 28 ENST00000283254.12 NP_008853.3 Q9NY46-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCN3AENST00000283254.12 linkc.5859C>T p.Ser1953Ser synonymous_variant Exon 28 of 28 1 NM_006922.4 ENSP00000283254.7 Q9NY46-3

Frequencies

GnomAD3 genomes
AF:
0.0210
AC:
3192
AN:
152084
Hom.:
106
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0725
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00910
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000206
Gnomad OTH
AF:
0.0167
GnomAD2 exomes
AF:
0.00545
AC:
1361
AN:
249768
AF XY:
0.00391
show subpopulations
Gnomad AFR exome
AF:
0.0735
Gnomad AMR exome
AF:
0.00416
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000976
Gnomad OTH exome
AF:
0.00197
GnomAD4 exome
AF:
0.00202
AC:
2946
AN:
1460998
Hom.:
98
Cov.:
31
AF XY:
0.00173
AC XY:
1260
AN XY:
726734
show subpopulations
African (AFR)
AF:
0.0732
AC:
2450
AN:
33462
American (AMR)
AF:
0.00415
AC:
185
AN:
44612
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26110
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39682
South Asian (SAS)
AF:
0.000139
AC:
12
AN:
86152
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53358
Middle Eastern (MID)
AF:
0.00139
AC:
8
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000297
AC:
33
AN:
1111498
Other (OTH)
AF:
0.00427
AC:
258
AN:
60358
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
152
304
456
608
760
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
78
156
234
312
390
<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:
0.0211
AC:
3204
AN:
152202
Hom.:
107
Cov.:
32
AF XY:
0.0207
AC XY:
1540
AN XY:
74432
show subpopulations
African (AFR)
AF:
0.0726
AC:
3013
AN:
41526
American (AMR)
AF:
0.00909
AC:
139
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.000206
AC:
14
AN:
68004
Other (OTH)
AF:
0.0166
AC:
35
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
155
310
465
620
775
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
30
60
90
120
150
<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:
0.0102
Hom.:
31
Bravo
AF:
0.0234
Asia WGS
AF:
0.00346
AC:
12
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
May 06, 2021
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

SCN3A-related disorder Benign:1
Apr 10, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.50
CADD
Benign
2.8
DANN
Benign
0.57
PhyloP100
0.92
Mutation Taster
=99/1
polymorphism (auto)

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: rs76096365; hg19: chr2-165946804; API