rs192329378
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Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_000258.3(MYL3):c.130-14G>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00247 in 1,613,968 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.0019 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0025 ( 4 hom. )
Consequence
MYL3
NM_000258.3 splice_polypyrimidine_tract, intron
NM_000258.3 splice_polypyrimidine_tract, intron
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.269
Genes affected
MYL3 (HGNC:7584): (myosin light chain 3) MYL3 encodes myosin light chain 3, an alkali light chain also referred to in the literature as both the ventricular isoform and the slow skeletal muscle isoform. Mutations in MYL3 have been identified as a cause of mid-left ventricular chamber type hypertrophic cardiomyopathy. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -20 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.62).
BP6
Variant 3-46861001-C-A is Benign according to our data. Variant chr3-46861001-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 43119.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-46861001-C-A is described in Lovd as [Benign]. Variant chr3-46861001-C-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00194 (296/152228) while in subpopulation AMR AF= 0.00484 (74/15296). AF 95% confidence interval is 0.00395. There are 0 homozygotes in gnomad4. There are 154 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 4 SD gene
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYL3 | NM_000258.3 | c.130-14G>T | splice_polypyrimidine_tract_variant, intron_variant | ENST00000292327.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYL3 | ENST00000292327.6 | c.130-14G>T | splice_polypyrimidine_tract_variant, intron_variant | 1 | NM_000258.3 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00195 AC: 296AN: 152110Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00161 AC: 404AN: 250952Hom.: 0 AF XY: 0.00172 AC XY: 234AN XY: 135692
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GnomAD4 exome AF: 0.00252 AC: 3686AN: 1461740Hom.: 4 Cov.: 33 AF XY: 0.00249 AC XY: 1812AN XY: 727140
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GnomAD4 genome AF: 0.00194 AC: 296AN: 152228Hom.: 0 Cov.: 32 AF XY: 0.00207 AC XY: 154AN XY: 74432
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:13
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Hypertrophic cardiomyopathy 8 Benign:6
Likely benign, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | May 02, 2019 | - - |
Benign, criteria provided, single submitter | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | Sep 21, 2015 | - - |
Likely benign, no assertion criteria provided | clinical testing | Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen | - | - - |
Benign, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Feb 17, 2022 | - - |
Benign, criteria provided, single submitter | clinical testing | Genome Diagnostics Laboratory, University Medical Center Utrecht | Oct 09, 2014 | - - |
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Sep 13, 2018 | 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 was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. - |
not specified Benign:2
Likely benign, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Aug 07, 2012 | 130-14G>T in intron 01 of MYL3: This variant is not expected to have clinical si gnificance because it has been identified in 0.4% (31/7020) of European American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http ://evs.gs.washington.edu/EVS/). 130-14G>T in intron 01 of MYL3 (allele frequenc y = 0.4%, 31/7020) ** - |
Benign, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
not provided Benign:2
Benign, criteria provided, single submitter | clinical testing | GeneDx | Mar 03, 2015 | - - |
Likely benign, no assertion criteria provided | clinical testing | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ | - | - - |
Hypertrophic cardiomyopathy Benign:2
Benign, criteria provided, single submitter | clinical testing | Invitae | Feb 01, 2024 | - - |
Benign, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Feb 05, 2024 | - - |
Cardiomyopathy Benign:1
Benign, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Mar 29, 2018 | - - |
Computational scores
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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