rs551260434

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS2

The NM_006922.4(SCN3A):​c.1595T>C​(p.Val532Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000867 in 1,614,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V532I) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SCN3A
NM_006922.4 missense

Scores

8
10

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.95

Publications

0 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 -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14356646).
BP6
Variant 2-165146815-A-G is Benign according to our data. Variant chr2-165146815-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 403873.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 11 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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SCN3A
NM_006922.4
MANE Select
c.1595T>Cp.Val532Ala
missense
Exon 12 of 28NP_008853.3
SCN3A
NM_001081676.2
c.1595T>Cp.Val532Ala
missense
Exon 12 of 28NP_001075145.1
SCN3A
NM_001081677.2
c.1595T>Cp.Val532Ala
missense
Exon 12 of 28NP_001075146.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SCN3A
ENST00000283254.12
TSL:1 MANE Select
c.1595T>Cp.Val532Ala
missense
Exon 12 of 28ENSP00000283254.7
SCN3A
ENST00000409101.7
TSL:1
c.1595T>Cp.Val532Ala
missense
Exon 12 of 28ENSP00000386726.3
SCN3A
ENST00000706067.1
c.1595T>Cp.Val532Ala
missense
Exon 12 of 28ENSP00000516211.1

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152120
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000266
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000159
AC:
4
AN:
251376
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.0000289
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:
0.00000205
AC:
3
AN:
1461794
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
727196
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33474
American (AMR)
AF:
0.0000224
AC:
1
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111942
Other (OTH)
AF:
0.00
AC:
0
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000723
AC:
11
AN:
152238
Hom.:
0
Cov.:
31
AF XY:
0.000108
AC XY:
8
AN XY:
74414
show subpopulations
African (AFR)
AF:
0.000265
AC:
11
AN:
41548
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.00
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000412
AC:
5

ClinVar

ClinVar submissions as Germline

Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
22
DANN
Uncertain
0.98
DEOGEN2
Uncertain
0.52
D
Eigen
Benign
0.0033
Eigen_PC
Benign
0.18
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.066
D
MetaRNN
Benign
0.14
T
MetaSVM
Uncertain
0.053
D
MutationAssessor
Benign
1.0
L
PhyloP100
4.0
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-2.1
N
REVEL
Uncertain
0.29
Sift
Uncertain
0.022
D
Sift4G
Benign
0.66
T
Polyphen
0.17
B
Vest4
0.26
MutPred
0.31
Loss of stability (P = 0.0151)
MVP
0.45
MPC
0.72
ClinPred
0.14
T
GERP RS
5.7
Varity_R
0.17
gMVP
0.51
Mutation Taster
=32/68
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: rs551260434; hg19: chr2-166003325; API