rs730880674
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM4_SupportingPP5
The NM_000256.3(MYBPC3):c.3407_3409del(p.Tyr1136del) variant causes a inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,608,628 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. Y1136Y) has been classified as Likely benign.
Frequency
Consequence
NM_000256.3 inframe_deletion
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYBPC3 | NM_000256.3 | c.3407_3409del | p.Tyr1136del | inframe_deletion | 31/35 | ENST00000545968.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYBPC3 | ENST00000545968.6 | c.3407_3409del | p.Tyr1136del | inframe_deletion | 31/35 | 5 | NM_000256.3 | P4 | |
MYBPC3 | ENST00000399249.6 | c.3407_3409del | p.Tyr1136del | inframe_deletion | 30/34 | 5 | A2 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152132Hom.: 0 Cov.: 32
GnomAD4 exome AF: 0.00000412 AC: 6AN: 1456496Hom.: 0 AF XY: 0.00000691 AC XY: 5AN XY: 723952
GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152132Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74318
ClinVar
Submissions by phenotype
Hypertrophic cardiomyopathy 4 Pathogenic:5
Likely pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | Dec 08, 2022 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Institute of Human Genetics Munich, Klinikum Rechts Der Isar, TU München | Apr 24, 2023 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Genome Diagnostics Laboratory, University Medical Center Utrecht | Oct 26, 2017 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | May 31, 2017 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Clinical Genetics Laboratory, Region Ostergotland | Feb 24, 2021 | PS4, PM2, PM4 - |
not provided Pathogenic:3Uncertain:1
Pathogenic, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Mar 21, 2017 | The c.3407_3409delACT variant of uncertain significance in the MYBPC3 gene has been reported previously in two individuals with HCM; however, no detailed clinical or segregation data were provided (Sequeira et al., 2013; Murphy et al., 2016). This variant is not observed in large population cohorts (Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). This three nucleotide deletion results in elimination of a tyrosine residue at position 1136, and does not result in a shift in reading frame. Tyrosine at this position is conserved in mammals and in silio analysis predicts this deletion to be damaging to the protein structer/function. However, the c.3407_3409delACT variant lacks sufficient evidence, including observation in a significant number of affected inidividuals, segregation studies, and functional characterization, that would further clarify its potential pathogenicity. - |
Pathogenic, no assertion criteria provided | clinical testing | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ | - | - - |
Pathogenic, no assertion criteria provided | clinical testing | Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen | - | - - |
Hypertrophic cardiomyopathy Pathogenic:3
Likely pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jun 13, 2023 | In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. ClinVar contains an entry for this variant (Variation ID: 181102). This variant has been observed in individuals with hypertrophic cardiomyopathy and/or MYBPC3-related conditions (PMID: 23508784, 26914223, 30685992, 31513939, 33673806; Invitae). This variant is not present in population databases (gnomAD no frequency). This variant, c.3407_3409del, results in the deletion of 1 amino acid(s) of the MYBPC3 protein (p.Tyr1136del), but otherwise preserves the integrity of the reading frame. - |
Likely pathogenic, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Nov 13, 2023 | The c.3407_3409del (p.Tyr1136del) variant of the MYBPC3 gene leads to the deletion of 1 amino acid of the MYBPC3 protein (p.Tyr1136del), but otherwise preserves the integrity of the reading frame. This variant has been observed in individuals with hypertrophic cardiomyopathy (PMID: 24835277, 31323898, 29875424, 23508784, 33495596, 26914223, 30685992, 31513939, 33673806). This variant is not present in the general population by the Genome Aggregation Database (gnomAD). Therefore the c.3407_3409del (p.Tyr1136del) variant of the MYBPC3 gene is classified as likely pathogenic. - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Center for Human Genetics, University of Leuven | Oct 31, 2018 | - - |
Left ventricular noncompaction 10 Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | Dec 08, 2022 | - - |
Cardiomyopathy Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario | Apr 21, 2023 | - - |
Brugada syndrome Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Institute of Human Genetics, Medical University Innsbruck | - | - - |
Primary familial hypertrophic cardiomyopathy Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Blueprint Genetics | Oct 29, 2015 | - - |
Cardiovascular phenotype Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Ambry Genetics | Nov 27, 2023 | The c.3407_3409delACT variant (also known as p.Y1136del) is located in coding exon 31 of the MYBPC3 gene. This variant results from an in-frame ACT deletion at nucleotide positions 3407 to 3409. This results in the in-frame deletion of a tyrosine at codon 1136. This alteration has been reported in several individuals with hypertrophic cardiomyopathy (HCM) (Lopes LR et al. J Med Genet, 2013 Apr;50:228-39; Sequeira V et al. Circ. Res., 2013 May;112:1491-505; Witjas-Paalberends ER et al. Cardiovasc. Res., 2014 Jul;103:248-57; Murphy SL et al. J Cardiovasc Transl Res, 2016 Apr;9:153-61; Dorsch LM et al. Cells, 2019 07;8:[ePub ahead of print]; Mazzarotto F et al. Genet Med, 2019 02;21:284-292; Nagyova E et al. Bratisl Lek Listy, 2019 Oct;120:46-51; Robyns T et al. Eur J Med Genet, 2020 Mar;63:103754; Harper AR et al. Nat Genet, 2021 02;53:135-142; Hathaway J et al. BMC Cardiovasc Disord, 2021 03;21:126; Tadros R et al. Nat Genet, 2021 02;53:128-134; Ambry internal data). This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis (Choi Y et al. PLoS ONE. 2012; 7(10):e46688). Based on the majority of available evidence to date, this variant is likely to be pathogenic. - |
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute | Jun 12, 2017 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at