rs377173580

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP2

The ENST00000423572.7(SCN5A):​c.4083G>T​(p.Arg1361Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. R1361K) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Consequence

SCN5A
ENST00000423572.7 missense

Scores

4
6
10

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.88
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a topological_domain Extracellular (size 51) in uniprot entity SCN5A_HUMAN there are 12 pathogenic changes around while only 1 benign (92%) in ENST00000423572.7
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 4.8279 (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.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SCN5ANM_001099404.2 linkuse as main transcriptc.4086G>T p.Arg1362Ser missense_variant 23/28 ENST00000413689.6 NP_001092874.1
SCN5ANM_000335.5 linkuse as main transcriptc.4083G>T p.Arg1361Ser missense_variant 23/28 ENST00000423572.7 NP_000326.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SCN5AENST00000413689.6 linkuse as main transcriptc.4086G>T p.Arg1362Ser missense_variant 23/285 NM_001099404.2 ENSP00000410257 P4
SCN5AENST00000423572.7 linkuse as main transcriptc.4083G>T p.Arg1361Ser missense_variant 23/281 NM_000335.5 ENSP00000398266 A1Q14524-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251484
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135912
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.84
CardioboostCm
Benign
0.0078
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Uncertain
0.13
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.86
.;.;.;.;.;D;.;.;.
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.36
FATHMM_MKL
Benign
0.18
N
LIST_S2
Benign
0.81
.;T;T;T;D;T;D;.;D
M_CAP
Pathogenic
0.32
D
MetaRNN
Uncertain
0.58
D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.76
D
MutationAssessor
Benign
1.9
.;.;.;.;.;L;.;.;.
MutationTaster
Benign
0.86
D;D;D;D;D;D;D;D;D;D
PrimateAI
Benign
0.36
T
PROVEAN
Uncertain
-2.6
D;D;D;D;N;D;D;N;N
REVEL
Uncertain
0.64
Sift
Benign
0.030
D;D;D;D;D;D;D;D;D
Sift4G
Benign
0.069
T;T;T;T;T;T;T;T;T
Polyphen
0.78
P;P;.;P;.;P;P;.;.
Vest4
0.57
MutPred
0.49
Gain of loop (P = 0.0166);.;Gain of loop (P = 0.0166);Gain of loop (P = 0.0166);.;Gain of loop (P = 0.0166);.;.;.;
MVP
0.96
MPC
0.68
ClinPred
0.34
T
GERP RS
1.1
Varity_R
0.24
gMVP
0.99

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs377173580; hg19: chr3-38601797; API