rs774593360

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_001099404.2(SCN5A):​c.5482G>T​(p.Ala1828Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 152,078 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.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SCN5A
NM_001099404.2 missense

Scores

3
8
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.695
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SCN5A. . Gene score misZ 2.7504 (greater than the threshold 3.09). Trascript score misZ 4.7729 (greater than threshold 3.09). GenCC has associacion of gene with progressive familial heart block, type 1A, Brugada syndrome, familial sick sinus syndrome, short QT syndrome, paroxysmal familial ventricular fibrillation, progressive familial heart block, long QT syndrome 3, familial atrial fibrillation, catecholaminergic polymorphic ventricular tachycardia, dilated cardiomyopathy, dilated cardiomyopathy 1E, arrhythmogenic right ventricular cardiomyopathy, Brugada syndrome 1, atrial standstill, familial isolated dilated cardiomyopathy, familial long QT syndrome, sick sinus syndrome 1.
BP4
Computational evidence support a benign effect (MetaRNN=0.34758702).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SCN5ANM_001099404.2 linkuse as main transcriptc.5482G>T p.Ala1828Ser missense_variant 28/28 ENST00000413689.6 NP_001092874.1
SCN5ANM_000335.5 linkuse as main transcriptc.5479G>T p.Ala1827Ser missense_variant 28/28 ENST00000423572.7 NP_000326.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SCN5AENST00000413689.6 linkuse as main transcriptc.5482G>T p.Ala1828Ser missense_variant 28/285 NM_001099404.2 ENSP00000410257 P4
SCN5AENST00000423572.7 linkuse as main transcriptc.5479G>T p.Ala1827Ser missense_variant 28/281 NM_000335.5 ENSP00000398266 A1Q14524-2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152078
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
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
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1461580
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727078
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152078
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74298
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
CardioboostCm
Benign
0.0076
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.0
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.48
.;.;.;.;.;T;.;.;.
Eigen
Benign
-0.040
Eigen_PC
Benign
0.041
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Uncertain
0.90
.;D;D;D;D;D;D;.;D
M_CAP
Pathogenic
0.51
D
MetaRNN
Benign
0.35
T;T;T;T;T;T;T;T;T
MetaSVM
Pathogenic
0.88
D
MutationAssessor
Uncertain
2.2
.;.;.;.;.;M;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D;D;D
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-1.2
N;N;N;N;N;N;N;N;N
REVEL
Uncertain
0.63
Sift
Benign
0.064
T;T;T;T;T;T;T;T;T
Sift4G
Benign
0.30
T;T;T;T;T;T;T;T;T
Polyphen
0.018
B;B;.;B;.;B;B;.;.
Vest4
0.24
MutPred
0.44
.;.;Gain of disorder (P = 0.0171);.;.;Gain of disorder (P = 0.0171);.;.;.;
MVP
0.85
MPC
0.67
ClinPred
0.97
D
GERP RS
3.9
Varity_R
0.45
gMVP
0.92

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs774593360; hg19: chr3-38592381; API