ClinVar Genomic variation as it relates to human health
NM_000257.4(MYH7):c.2146G>A (p.Gly716Arg)
The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.
Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.
No data submitted for somatic clinical impact
No data submitted for oncogenicity
Variant Details
- Identifiers
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NM_000257.4(MYH7):c.2146G>A (p.Gly716Arg)
Variation ID: 14105 Accession: VCV000014105.22
- Type and length
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single nucleotide variant, 1 bp
- Location
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Cytogenetic: 14q11.2 14: 23425980 (GRCh38) [ NCBI UCSC ] 14: 23895189 (GRCh37) [ NCBI UCSC ]
- Timeline in ClinVar
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First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.
Last submission Help The date of the most recent submission for each type of classification for this variant.
Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline Oct 11, 2015 Feb 14, 2024 Dec 15, 2016 - HGVS
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Nucleotide Protein Molecular
consequenceNM_000257.4:c.2146G>A MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.
NP_000248.2:p.Gly716Arg missense NC_000014.9:g.23425980C>T NC_000014.8:g.23895189C>T NG_007884.1:g.14682G>A LRG_384:g.14682G>A P12883:p.Gly716Arg - Protein change
- G716R
- Other names
- p.G716R:GGG>AGG
- NM_000257.3(MYH7):c.2146G>A
- Canonical SPDI
- NC_000014.9:23425979:C:T
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Functional
consequence HelpThe effect of the variant on RNA or protein function, based on experimental evidence from submitters.
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Global minor allele
frequency (GMAF) HelpThe global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.
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Allele frequency
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The frequency of the allele represented by this VCV record.
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Genes
Gene | OMIM | ClinGen Gene Dosage Sensitivity Curation |
Variation Viewer
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Links to Variation Viewer, a genome browser to view variation data from NCBI databases. |
Related variants | ||
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HI score
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The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team. |
TS score
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The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team. |
Within gene
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The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants. |
All
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The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene. |
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MYH7 | No evidence available | No evidence available |
GRCh38 GRCh37 |
3578 | 4827 |
Conditions - Germline
Condition
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The condition for this variant-condition (RCV) record in ClinVar. |
Classification
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The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions) |
Review status
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The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. |
Last evaluated
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The most recent date that a submitter evaluated this variant for the condition. |
Variation/condition record
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The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page. |
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Likely pathogenic (2) |
criteria provided, single submitter
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- | RCV000015161.28 | |
Pathogenic (5) |
criteria provided, multiple submitters, no conflicts
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Mar 14, 2022 | RCV000158511.10 | |
Pathogenic (4) |
reviewed by expert panel
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Dec 15, 2016 | RCV000233499.15 | |
Pathogenic (1) |
criteria provided, single submitter
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Jul 11, 2018 | RCV001170502.2 |
Submissions - Germline
Classification
Help
The submitted germline classification for each SCV record. (Last evaluated) |
Review status
Help
Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria) |
Condition
Help
The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant. |
Submitter
Help
The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar. |
More information
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This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter. |
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Pathogenic
(Dec 15, 2016)
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reviewed by expert panel
Method: curation
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Hypertrophic cardiomyopathy
(Autosomal dominant inheritance)
Affected status: unknown
Allele origin:
germline
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ClinGen Cardiomyopathy Variant Curation Expert Panel
Accession: SCV000564420.5
First in ClinVar: Jan 31, 2015 Last updated: Dec 11, 2022 |
Comment:
The c.2146G>A (p.Gly716Arg) variant in MYH7 has been reported in >30 individuals with hypertrophic cardiomyopathy (PS4; PMID:23074333; PMID:20641121; PMID:12084606; PMID:8282798; PMID:18953637; PMID:12707239; PMID:15358028; PMID:12975413; Partners … (more)
The c.2146G>A (p.Gly716Arg) variant in MYH7 has been reported in >30 individuals with hypertrophic cardiomyopathy (PS4; PMID:23074333; PMID:20641121; PMID:12084606; PMID:8282798; PMID:18953637; PMID:12707239; PMID:15358028; PMID:12975413; Partners LMM ClinVar SCV000059418.5; SHaRe consortium, PMID: 30297972). This variant has been identified as a de novo occurrence in 2 probands with hypertrophic cardiomyopathy (PM6; PMID:18953637; Partners LMM ClinVar SCV000059418.5). This variant segregated with disease in 11 affected individuals (PP1_Strong; PMID:8282798; PMID:20641121; Partners LMM ClinVar SCV000059418.5). This variant was absent from large population studies (PM2; http://exac.broadinstitute.org). This variant lies in the head region of the protein (aa 181-937) and missense variants in this region are statistically more likely to be disease-associated (PM1; PMID:27532257). Computational prediction tools and conservation analysis suggest that this variant may impact the protein (PP3). In summary, this variant meets criteria to be classified as pathogenic for hypertrophic cardiomyopathy in an autosomal dominant manner. MYH7-specific ACMG/AMP criteria applied (PMID:29300372): PS4; PP1_ Strong; PM1; PM2; PM6; PP3 (less)
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Likely pathogenic
(-)
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criteria provided, single submitter
Method: clinical testing
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Hypertrophic cardiomyopathy 1
(Autosomal dominant inheritance)
Affected status: yes
Allele origin:
germline
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Laboratory of Genetics and Molecular Cardiology, University of São Paulo
Study: Sarcomeric Human Cardiomyopathy Registry (ShaRe)
Accession: SCV000256139.1 First in ClinVar: Oct 11, 2015 Last updated: Oct 11, 2015 |
Number of individuals with the variant: 3
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Pathogenic
(Apr 25, 2016)
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criteria provided, single submitter
Method: clinical testing
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Hypertrophic cardiomyopathy
Affected status: not provided
Allele origin:
germline
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Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Accession: SCV000059418.6
First in ClinVar: May 03, 2013 Last updated: Aug 14, 2019 |
Comment:
proposed classification - variant undergoing re-assessment, contact laboratory
Number of individuals with the variant: 16
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Pathogenic
(Nov 30, 2018)
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criteria provided, single submitter
Method: research
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Hypertrophic cardiomyopathy
(Autosomal dominant inheritance)
Affected status: yes
Allele origin:
germline
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Agnes Ginges Centre for Molecular Cardiology, Centenary Institute
Accession: SCV001245087.1
First in ClinVar: May 04, 2020 Last updated: May 04, 2020 |
Comment:
MYH7 Gly716Arg has been previously reported in at least 15 HCM probands (Walsh R, et al., 2017; Garcia-Giustiniani D, et al., 2015; Marsiglia JD, et … (more)
MYH7 Gly716Arg has been previously reported in at least 15 HCM probands (Walsh R, et al., 2017; Garcia-Giustiniani D, et al., 2015; Marsiglia JD, et al., 2013; Zheng DD, et al., 2010; Rai TS, et al., 2009; Richard P, et al., 2003; Woo A, et al., 2003; Ackerman MJ, et al., 2002; Hwang TH, et al., 1998; Anan R, et al., 1994), including 2 de novo case (Zheng DD, et al., 2010; Rai TS, et al., 2009). It has also been reported to segregate in multiple affected individuals in several families (Garcia-Giustiniani D, et al., 2015; Hwang TH, et al., 1998; Choi Anan R, et al., 1994). We have identified this variant 2 probands diagnosed with HCM. In one family the variant segregated to an affected first-degree family member. The variant is very rare, being absent from the Genome Aggregation Database (http://gnomad.broadinstitute.org/). In silico tools PolyPhen2, CADD and MutationTaster predict this variant to be deleterious, however SIFT predicts this variant to be 'tolerated'. Functional studies suggest that the Gly716Arg variant decreases the affinity of myosin II to actin, which results in reduced force generation and subsequently compensatory hypertrophy (Fujita et al., 1997). In a large HCM population study Walsh et al., showed that MYH7 variants identified in HCM cases were found to cluster between amino acids 181- 937 (2017), this implies that variants in this region are likely to cause a HCM phenotype. Furthermore variant located in the converter region of MYH7 are predicted to result in worse outcomes (Garcia-Giustiniani D, et al., 2015). Based on the adapted ACMG criteria (Kelly MA, et al., 2018) this variant has been reported in more than 10 unrelated probands (PS4), segregates strongly with disease (PP1_Strong), is located in a mutational hotspot (PM1), is rare in the general population (PM2) and has been reported in de novo cases (PM5) therefore we classify MYH7 Gly716Arg as 'Pathogenic'. (less)
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Pathogenic
(Mar 14, 2022)
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criteria provided, single submitter
Method: clinical testing
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Not Provided
Affected status: yes
Allele origin:
germline
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GeneDx
Accession: SCV000208446.13
First in ClinVar: Feb 24, 2015 Last updated: Mar 04, 2023 |
Comment:
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; … (more)
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Published functional studies demonstrate a damaging effect as the p.(G716R) variant exhibited weak affinity with actin and generated a low level of force (Fujita et al., 1997); Reported as pathogenic in ClinVar by the ClinGen Cardiomyopathy Variant Curation Expert Panel; This variant is associated with the following publications: (PMID: 24033266, 15358028, 8282798, 9874056, 25935763, 24093860, 12084606, 12975413, 27161882, 28166811, 27532257, 27247418, 21310275, 18953637, 12707239, 20641121, 29300372, 30165862, 29907873, 29696744, 23074333, 20624503, 23283745, 20031618, 31912959, 32894683, 9062359, 27535533, 26582918) (less)
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Pathogenic
(Dec 30, 2023)
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criteria provided, single submitter
Method: clinical testing
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Hypertrophic cardiomyopathy
Affected status: unknown
Allele origin:
germline
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Invitae
Accession: SCV000284259.9
First in ClinVar: Jul 01, 2016 Last updated: Feb 14, 2024 |
Comment:
This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 716 of the MYH7 protein (p.Gly716Arg). … (more)
This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 716 of the MYH7 protein (p.Gly716Arg). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with hypertrophic cardiomyopathy (HCM) (PMID: 8282798, 9874056, 12084606, 12707239, 12975413, 18953637, 20031618, 20624503, 23283745, 24093860, 25935763, 27161882). In at least one individual the variant was observed to be de novo. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 14105). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt MYH7 protein function with a positive predictive value of 95%. Experimental studies have shown that this missense change affects MYH7 function (PMID: 9062359). For these reasons, this variant has been classified as Pathogenic. (less)
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Pathogenic
(Jul 11, 2018)
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criteria provided, single submitter
Method: clinical testing
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Cardiomyopathy
Affected status: unknown
Allele origin:
germline
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CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario
Accession: SCV001333085.1
First in ClinVar: May 31, 2020 Last updated: May 31, 2020 |
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Pathogenic
(Jun 17, 2021)
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criteria provided, single submitter
Method: clinical testing
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not provided
(Autosomal dominant inheritance)
Affected status: yes
Allele origin:
germline
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Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen
Accession: SCV001762109.1
First in ClinVar: Jul 31, 2021 Last updated: Jul 31, 2021 |
Clinical Features:
Hypertrophic cardiomyopathy (present)
Sex: male
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Pathogenic
(Jan 16, 2012)
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no assertion criteria provided
Method: clinical testing
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Not provided
Affected status: not provided
Allele origin:
germline
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Stanford Center for Inherited Cardiovascular Disease, Stanford University
Accession: SCV000280310.1
First in ClinVar: May 29, 2016 Last updated: May 29, 2016 |
Comment:
Note this variant was found in clinical genetic testing performed by one or more labs who may also submit to ClinVar. Thus any internal case … (more)
Note this variant was found in clinical genetic testing performed by one or more labs who may also submit to ClinVar. Thus any internal case data may overlap with the internal case data of other labs. The interpretation reviewed below is that of the Stanford Center for Inherited Cardiovascular Disease. p.Gly716Arg in the MYH7 gene. The variant has been seen in at least 10 unrelated cases of HCM, with strong segregation data. The variant was first reported by the Seidman group in three affected first degree relatives (Anan et al 1994). Hwang et al (1998) then reported a Korean family with 5 individuals with HCM who all had the variant (two were fourth degree relatives to each other). The same group later reported longterm follow-up on that family noting that all 15 family members with HCM carried the p.Gly716Arg variant. Ackerman et al (2002) reported a patient with HCM and p.Gly716Arg who had a quite significant family history, though unfortunately no genotyping on family members was reported. This is likely the same case that was later reported in van Driest et al 2004. Richard et al (2003) observed the variant in two unrelated individuals with HCM is their French cohort. Woo et al (2003) reported two individuals with HCM and this variant in their Canadian cohort. Millat et al (2010) reported one HCM patient with p.Gly716Arg in their French cohort, which seems to be distinct from the Richard et al cohort. Rai et al (2009) reported this variant arising de novo in a proband with severe hypertrophy who died suddenly. Parental genotypes and paternity were molecularly confirmed. Parents and a brother were reported as phenotypically normal (though it is unclear if they had cardiac evaluations). Most of the reported families had a particularly high penetrance with severe disease. This variant has also been reported in one individual in our center with HCM and a strong family history of HCM and RCM with multiple family members requiring transplant. In silico analysis with PolyPhen-2 predicts the variant to be probably damaging. The glycine at codon 716 is conserved across species, as are neighboring amino acids. No other variants have been reported in association with disease at this codon. Variants at nearby codons have been reported in association with HCM (p.Arg712Leu, p.Arg719Trp, p.Arg719Gln, p.Arg719Pro, p.Arg723Cys, p.Arg723Gly). In total the variant has not been seen in ~6,900 published controls and publicly available population datasets. There is no variation at codon 716 listed in the NHLBI Exome Sequencing Project dataset, which currently includes variant calls on ~6,500 Caucasian and African American individuals (as of 2/6/14). Please note, this does not match the patient's ancestry (Hispanic). There is also no variation at this codon listed in dbSNP or 1000 genomes (as of 2/6/14). The variant was not observed in the following published control samples: more than 100 individuals (Anan et al 1994), 100 (Richard et al 2003), 200 (van Driest et al 2004). (less)
Number of individuals with the variant: 12
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Pathogenic
(Jan 01, 1994)
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no assertion criteria provided
Method: literature only
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CARDIOMYOPATHY, FAMILIAL HYPERTROPHIC, 1
Affected status: not provided
Allele origin:
germline
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OMIM
Accession: SCV000035418.2
First in ClinVar: Apr 04, 2013 Last updated: Nov 10, 2016 |
Comment on evidence:
In a small family from the U.K. in which 2 individuals affected by hypertrophic cardiomyopathy (CMH1; 192600) were alive, including one who had been resuscitated … (more)
In a small family from the U.K. in which 2 individuals affected by hypertrophic cardiomyopathy (CMH1; 192600) were alive, including one who had been resuscitated after sudden death at age 19, Anan et al. (1994) found a G-to-A transition at nucleotide 2232 resulting in a gly716-to-arg (G716R) substitution (charge change = +1) of the encoded amino acid. (less)
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Pathogenic
(-)
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no assertion criteria provided
Method: clinical testing
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not provided
Affected status: yes
Allele origin:
germline
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Clinical Genetics, Academic Medical Center
Additional submitter:
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Study: VKGL Data-share Consensus
Accession: SCV002034504.1 First in ClinVar: Dec 18, 2021 Last updated: Dec 18, 2021 |
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Pathogenic
(-)
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no assertion criteria provided
Method: clinical testing
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not provided
Affected status: yes
Allele origin:
germline
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Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Additional submitter:
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Study: VKGL Data-share Consensus
Accession: SCV002038073.1 First in ClinVar: Dec 21, 2021 Last updated: Dec 21, 2021 |
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Germline Functional Evidence
There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar. |
Citations for germline classification of this variant
HelpTitle | Author | Journal | Year | Link |
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Adaptation and validation of the ACMG/AMP variant classification framework for MYH7-associated inherited cardiomyopathies: recommendations by ClinGen's Inherited Cardiomyopathy Expert Panel. | Kelly MA | Genetics in medicine : official journal of the American College of Medical Genetics | 2018 | PMID: 29300372 |
Intrinsic MYH7 expression regulation contributes to tissue level allelic imbalance in hypertrophic cardiomyopathy. | Montag J | Journal of muscle research and cell motility | 2017 | PMID: 29101517 |
Reassessment of Mendelian gene pathogenicity using 7,855 cardiomyopathy cases and 60,706 reference samples. | Walsh R | Genetics in medicine : official journal of the American College of Medical Genetics | 2017 | PMID: 27532257 |
Phenotype and prognostic correlations of the converter region mutations affecting the β myosin heavy chain. | García-Giustiniani D | Heart (British Cardiac Society) | 2015 | PMID: 25935763 |
Screening of MYH7, MYBPC3, and TNNT2 genes in Brazilian patients with hypertrophic cardiomyopathy. | Marsiglia JD | American heart journal | 2013 | PMID: 24093860 |
Multiple gene mutations, not the type of mutation, are the modifier of left ventricle hypertrophy in patients with hypertrophic cardiomyopathy. | Zou Y | Molecular biology reports | 2013 | PMID: 23283745 |
Cardiac structural and sarcomere genes associated with cardiomyopathy exhibit marked intolerance of genetic variation. | Pan S | Circulation. Cardiovascular genetics | 2012 | PMID: 23074333 |
Long-term outcome of 4 Korean families with hypertrophic cardiomyopathy caused by 4 different mutations. | Choi JO | Clinical cardiology | 2010 | PMID: 20641121 |
Prevalence and spectrum of mutations in a cohort of 192 unrelated patients with hypertrophic cardiomyopathy. | Millat G | European journal of medical genetics | 2010 | PMID: 20624503 |
Prevalence of sarcomere protein gene mutations in preadolescent children with hypertrophic cardiomyopathy. | Kaski JP | Circulation. Cardiovascular genetics | 2009 | PMID: 20031618 |
Genotype phenotype correlations of cardiac beta-myosin heavy chain mutations in Indian patients with hypertrophic and dilated cardiomyopathy. | Rai TS | Molecular and cellular biochemistry | 2009 | PMID: 18953637 |
Comprehensive analysis of the beta-myosin heavy chain gene in 389 unrelated patients with hypertrophic cardiomyopathy. | Van Driest SL | Journal of the American College of Cardiology | 2004 | PMID: 15358028 |
Mutations of the beta myosin heavy chain gene in hypertrophic cardiomyopathy: critical functional sites determine prognosis. | Woo A | Heart (British Cardiac Society) | 2003 | PMID: 12975413 |
Hypertrophic cardiomyopathy: distribution of disease genes, spectrum of mutations, and implications for a molecular diagnosis strategy. | Richard P | Circulation | 2003 | PMID: 12707239 |
Prevalence and age-dependence of malignant mutations in the beta-myosin heavy chain and troponin T genes in hypertrophic cardiomyopathy: a comprehensive outpatient perspective. | Ackerman MJ | Journal of the American College of Cardiology | 2002 | PMID: 12084606 |
Early expression of a malignant phenotype of familial hypertrophic cardiomyopathy associated with a Gly716Arg myosin heavy chain mutation in a Korean family. | Hwang TH | The American journal of cardiology | 1998 | PMID: 9874056 |
Characterization of mutant myosins of Dictyostelium discoideum equivalent to human familial hypertrophic cardiomyopathy mutants. Molecular force level of mutant myosins may have a prognostic implication. | Fujita H | The Journal of clinical investigation | 1997 | PMID: 9062359 |
Prognostic implications of novel beta cardiac myosin heavy chain gene mutations that cause familial hypertrophic cardiomyopathy. | Anan R | The Journal of clinical investigation | 1994 | PMID: 8282798 |
https://erepo.clinicalgenome.org/evrepo/ui/interpretation/768afef8-4fb0-47f1-980f-d95c2ab71447 | - | - | - | - |
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Text-mined citations for rs121913638 ...
HelpRecord last updated Feb 14, 2024
This date represents the last time this VCV record was updated. The update may be due to an update to one of the included submitted records (SCVs), or due to an update that ClinVar made to the variant such as adding HGVS expressions or a rs number. So this date may be different from the date of the “most recent submission” reported at the top of this page.