rs1805126
Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1
The NM_001099404.2(SCN5A):c.5457T>C(p.Asp1819=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.361 in 1,613,600 control chromosomes in the GnomAD database, including 110,517 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.44 ( 16131 hom., cov: 31)
Exomes 𝑓: 0.35 ( 94386 hom. )
Consequence
SCN5A
NM_001099404.2 synonymous
NM_001099404.2 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -2.12
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 Benign. Variant got -21 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
?
Variant 3-38550915-A-G is Benign according to our data. Variant chr3-38550915-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 48307.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-38550915-A-G is described in Lovd as [Benign].
BP7
?
Synonymous conserved (PhyloP=-2.12 with no splicing effect.
BA1
?
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.645 is higher than 0.05.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SCN5A | NM_001099404.2 | c.5457T>C | p.Asp1819= | synonymous_variant | 28/28 | ENST00000413689.6 | |
SCN5A | NM_000335.5 | c.5454T>C | p.Asp1818= | synonymous_variant | 28/28 | ENST00000423572.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SCN5A | ENST00000413689.6 | c.5457T>C | p.Asp1819= | synonymous_variant | 28/28 | 5 | NM_001099404.2 | P4 | |
SCN5A | ENST00000423572.7 | c.5454T>C | p.Asp1818= | synonymous_variant | 28/28 | 1 | NM_000335.5 | A1 |
Frequencies
GnomAD3 genomes ? AF: 0.438 AC: 66453AN: 151806Hom.: 16085 Cov.: 31
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GnomAD3 exomes AF: 0.387 AC: 96582AN: 249672Hom.: 19834 AF XY: 0.379 AC XY: 51299AN XY: 135390
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GnomAD4 exome AF: 0.353 AC: 515661AN: 1461676Hom.: 94386 Cov.: 65 AF XY: 0.351 AC XY: 255503AN XY: 727116
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:21
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:8
Benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
Benign, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Aug 06, 2014 | - - |
Benign, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Mar 19, 2012 | p.Asp1819Asp in Exon 28 of SCN5A: This variant is not expected to have clinical significance because it does not alter an amino acid residue, is not located wit hin the splice consensus sequence and has been identified in 38.2% (1388/3636) o f African American chromosomes from a broad population by the NHLBI Exome Sequen cing Project (http://evs.gs.washington.edu/EVS; dbSNP rs1805126). - |
Benign, criteria provided, single submitter | clinical testing | Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute | Jul 11, 2019 | - - |
Benign, no assertion criteria provided | clinical testing | Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen | - | - - |
Benign, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
Benign, no assertion criteria provided | clinical testing | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ | - | - - |
Benign, criteria provided, single submitter | clinical testing | GeneDx | Jul 10, 2011 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
not provided Benign:3
Benign, criteria provided, single submitter | clinical testing | Invitae | Feb 01, 2024 | - - |
Benign, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Nov 29, 2023 | - - |
Benign, criteria provided, single submitter | clinical testing | Athena Diagnostics | Apr 20, 2017 | - - |
Brugada syndrome 1 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Apr 27, 2017 | This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. - |
Ventricular fibrillation, paroxysmal familial, type 1 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Apr 27, 2017 | This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. - |
Dilated cardiomyopathy 1E Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Apr 27, 2017 | This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. - |
Sick sinus syndrome 1 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Apr 27, 2017 | This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. - |
Congenital long QT syndrome Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jun 14, 2016 | - - |
Progressive familial heart block, type 1A Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Apr 27, 2017 | This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. - |
Primary dilated cardiomyopathy Benign:1
Benign, no assertion criteria provided | clinical testing | Cohesion Phenomics | Sep 27, 2022 | - - |
Cardiovascular phenotype Benign:1
Benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 09, 2015 | This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Long QT syndrome 3 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Apr 27, 2017 | This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. - |
Cardiac arrhythmia Benign:1
Benign, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Mar 15, 2018 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
Cadd
Benign
Dann
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at