rs770492637
Variant summary
Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2
The NM_002471.4(MYH6):c.3979-3_3979-2insC variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000288 in 981,312 control chromosomes in the GnomAD database, including 3 homozygotes. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.0017 ( 1 hom., cov: 31)
Exomes 𝑓: 0.00015 ( 2 hom. )
Consequence
MYH6
NM_002471.4 splice_region, splice_polypyrimidine_tract, intron
NM_002471.4 splice_region, splice_polypyrimidine_tract, intron
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 3.08
Genes affected
MYH6 (HGNC:7576): (myosin heavy chain 6) Cardiac muscle myosin is a hexamer consisting of two heavy chain subunits, two light chain subunits, and two regulatory subunits. This gene encodes the alpha heavy chain subunit of cardiac myosin. The gene is located approximately 4kb downstream of the gene encoding the beta heavy chain subunit of cardiac myosin. Mutations in this gene cause familial hypertrophic cardiomyopathy and atrial septal defect 3. [provided by RefSeq, Feb 2017]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -16 ACMG points.
BP6
?
Variant 14-23389057-T-TG is Benign according to our data. Variant chr14-23389057-T-TG is described in ClinVar as [Likely_benign]. Clinvar id is 414316.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
?
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00174 (151/86986) while in subpopulation AFR AF= 0.00868 (141/16250). AF 95% confidence interval is 0.00751. There are 1 homozygotes in gnomad4. There are 84 alleles in male gnomad4 subpopulation. This position pass quality control queck.
BS2
?
High AC in GnomAd at 149 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYH6 | NM_002471.4 | c.3979-3_3979-2insC | splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant | ENST00000405093.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYH6 | ENST00000405093.9 | c.3979-3_3979-2insC | splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant | 5 | NM_002471.4 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00171 AC: 149AN: 86938Hom.: 1 Cov.: 31
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GnomAD4 exome AF: 0.000148 AC: 132AN: 894326Hom.: 2 Cov.: 48 AF XY: 0.000111 AC XY: 50AN XY: 449026
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GnomAD4 genome ? AF: 0.00174 AC: 151AN: 86986Hom.: 1 Cov.: 31 AF XY: 0.00196 AC XY: 84AN XY: 42840
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:1
Benign, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | May 07, 2022 | - - |
Hypertrophic cardiomyopathy 14 Benign:1
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 31, 2024 | - - |
Dilated cardiomyopathy 1EE;C2750467:Hypertrophic cardiomyopathy 14;C3279790:Atrial septal defect 3;C3279791:Sick sinus syndrome 3, susceptibility to;C3495498:Hypertrophic cardiomyopathy 1 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Oct 09, 2021 | - - |
MYH6-related condition Benign:1
Likely benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Mar 29, 2019 | This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). - |
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 04, 2019 | This alteration is classified as likely 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. - |
Computational scores
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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