rs13324293
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Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1
The NM_001099404.2(SCN5A):c.5844C>T(p.Ile1948=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0121 in 1,612,626 control chromosomes in the GnomAD database, including 1,890 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.062 ( 1027 hom., cov: 33)
Exomes 𝑓: 0.0068 ( 863 hom. )
Consequence
SCN5A
NM_001099404.2 synonymous
NM_001099404.2 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.819
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=-0.48).
BP6
?
Variant 3-38550528-G-A is Benign according to our data. Variant chr3-38550528-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 48311.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-38550528-G-A is described in Lovd as [Benign].
BP7
?
Synonymous conserved (PhyloP=-0.819 with no splicing effect.
BA1
?
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.211 is higher than 0.05.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SCN5A | NM_001099404.2 | c.5844C>T | p.Ile1948= | synonymous_variant | 28/28 | ENST00000413689.6 | |
SCN5A | NM_000335.5 | c.5841C>T | p.Ile1947= | synonymous_variant | 28/28 | ENST00000423572.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SCN5A | ENST00000413689.6 | c.5844C>T | p.Ile1948= | synonymous_variant | 28/28 | 5 | NM_001099404.2 | P4 | |
SCN5A | ENST00000423572.7 | c.5841C>T | p.Ile1947= | synonymous_variant | 28/28 | 1 | NM_000335.5 | A1 |
Frequencies
GnomAD3 genomes ? AF: 0.0623 AC: 9481AN: 152192Hom.: 1026 Cov.: 33
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GnomAD3 exomes AF: 0.0161 AC: 3974AN: 247328Hom.: 354 AF XY: 0.0125 AC XY: 1684AN XY: 134322
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GnomAD4 exome AF: 0.00683 AC: 9974AN: 1460318Hom.: 863 Cov.: 31 AF XY: 0.00604 AC XY: 4386AN XY: 726280
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GnomAD4 genome ? AF: 0.0623 AC: 9491AN: 152308Hom.: 1027 Cov.: 33 AF XY: 0.0604 AC XY: 4503AN XY: 74492
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:19
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:6
Benign, no assertion criteria provided | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | - | - - |
Benign, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Mar 19, 2012 | p.Ile1948Ile 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 20.5% (708/3454) of African American chromosomes from a broad population by the NHLBI Exome Sequenc ing Project (http://evs.gs.washington.edu/EVS; dbSNP rs13324293). - |
Benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
Benign, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Jul 05, 2013 | - - |
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+ | - | - - |
not provided Benign:2
Benign, criteria provided, single submitter | clinical testing | GeneDx | Mar 03, 2015 | - - |
Benign, criteria provided, single submitter | clinical testing | Invitae | Feb 01, 2024 | - - |
Brugada syndrome 1 Benign:1
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
Ventricular fibrillation, paroxysmal familial, type 1 Benign:1
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
Cardiomyopathy Benign:1
Benign, criteria provided, single submitter | clinical testing | CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario | Nov 09, 2022 | - - |
Congenital long QT syndrome Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jun 14, 2016 | - - |
Dilated cardiomyopathy 1E Benign:1
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
Sick sinus syndrome 1 Benign:1
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
Progressive familial heart block, type 1A Benign:1
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
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 | Jul 15, 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
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
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
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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