rs771243543

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001099404.2(SCN5A):​c.5948C>T​(p.Ala1983Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000696 in 1,437,658 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign 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. A1983G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

SCN5A
NM_001099404.2 missense

Scores

3
10
8

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.61

Publications

1 publications found
Variant links:
Genes affected
SCN5A (HGNC:10593): (sodium voltage-gated channel alpha subunit 5) The protein encoded by this gene is an integral membrane protein and tetrodotoxin-resistant voltage-gated sodium channel subunit. This protein is found primarily in cardiac muscle and is responsible for the initial upstroke of the action potential in an electrocardiogram. Defects in this gene have been associated with long QT syndrome type 3 (LQT3), atrial fibrillation, cardiomyopathy, and Brugada syndrome 1, all autosomal dominant cardiac diseases. Alternative splicing results in several transcript variants encoding different isoforms. [provided by RefSeq, May 2022]
SCN5A Gene-Disease associations (from GenCC):
  • Brugada syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • Brugada syndrome 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Laboratory for Molecular Medicine, G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • dilated cardiomyopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • dilated cardiomyopathy 1E
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • familial long QT syndrome
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • long QT syndrome 3
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • sick sinus syndrome 1
    Inheritance: AD, AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
  • progressive familial heart block, type 1A
    Inheritance: SD, AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Genomics England PanelApp
  • atrial standstill
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial atrial fibrillation
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial sick sinus syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • paroxysmal familial ventricular fibrillation
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • progressive familial heart block
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • arrhythmogenic right ventricular cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen
  • catecholaminergic polymorphic ventricular tachycardia
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • short QT syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23893252).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCN5ANM_001099404.2 linkc.5948C>T p.Ala1983Val missense_variant Exon 28 of 28 ENST00000413689.6 NP_001092874.1 Q14524H9KVD2
SCN5ANM_000335.5 linkc.5945C>T p.Ala1982Val missense_variant Exon 28 of 28 ENST00000423572.7 NP_000326.2 Q14524-2Q86V90

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCN5AENST00000413689.6 linkc.5948C>T p.Ala1983Val missense_variant Exon 28 of 28 5 NM_001099404.2 ENSP00000410257.1 H9KVD2
SCN5AENST00000423572.7 linkc.5945C>T p.Ala1982Val missense_variant Exon 28 of 28 1 NM_000335.5 ENSP00000398266.2 Q14524-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000425
AC:
1
AN:
235222
AF XY:
0.00000790
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000933
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.96e-7
AC:
1
AN:
1437658
Hom.:
0
Cov.:
31
AF XY:
0.00000141
AC XY:
1
AN XY:
711112
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33166
American (AMR)
AF:
0.00
AC:
0
AN:
43576
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24630
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39358
South Asian (SAS)
AF:
0.00
AC:
0
AN:
82168
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52540
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5662
European-Non Finnish (NFE)
AF:
9.11e-7
AC:
1
AN:
1097302
Other (OTH)
AF:
0.00
AC:
0
AN:
59256
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000827
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
CardioboostArm
Benign
0.000092
CardioboostCm
Benign
0.011
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.040
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.52
.;.;.;.;.;D;.;.;.
Eigen
Uncertain
0.30
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.86
.;D;D;D;D;D;D;.;D
M_CAP
Uncertain
0.19
D
MetaRNN
Benign
0.24
T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.68
D
MutationAssessor
Benign
0.0
.;.;.;.;.;N;.;.;.
PhyloP100
6.6
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.9
N;N;N;N;N;N;N;N;N
REVEL
Uncertain
0.46
Sift
Uncertain
0.010
D;D;D;D;D;D;D;D;D
Sift4G
Benign
0.31
T;T;T;T;T;T;T;T;T
Polyphen
0.46
P;P;.;P;.;P;P;.;.
Vest4
0.19
MutPred
0.13
.;.;Loss of loop (P = 0.0986);.;.;Loss of loop (P = 0.0986);.;.;.;
MVP
0.76
MPC
1.4
ClinPred
0.83
D
GERP RS
5.0
Varity_R
0.16
gMVP
0.30
Mutation Taster
=20/80
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: rs771243543; hg19: chr3-38591915; API