VCV000042964.19 - ClinVar

NM_000257.4(MYH7):c.3464G>A (p.Gly1155Glu)

Germline

Classification

criteria provided, multiple submitters, no conflicts. Learn more about how ClinVar calculates review status.

Uncertain significance

8 out of 8 submissions contributed to this classification

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.

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NM_000257.4(MYH7):c.3464G>A (p.Gly1155Glu)

Variation ID: 42964 Accession: VCV000042964.19

Type and length

single nucleotide variant, 1 bp

Location

Cytogenetic: 14q11.2 14: 23420107 (GRCh38) [ NCBI UCSC ] 14: 23889316 (GRCh37) [ NCBI UCSC ]

Timeline in ClinVar

	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	May 29, 2016	Feb 15, 2026	Jan 27, 2026

HGVS

Nucleotide	Protein	Molecular consequence
NM_000257.4:c.3464G>A MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_000248.2:p.Gly1155Glu	missense
NC_000014.9:g.23420107C>T
NC_000014.8:g.23889316C>T
NG_007884.1:g.20555G>A
LRG_384:g.20555G>A
LRG_384t1:c.3464G>A

... more HGVS ... less HGVS

Protein change

G1155E

Other names

Canonical SPDI

NC_000014.9:23420106:C:T

Global minor allele frequency (GMAF) Help The 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.

Allele frequency Help The frequency of the allele represented by this VCV record.

Trans-Omics for Precision Medicine (TOPMed) 0.00001

The Genome Aggregation Database (gnomAD), exomes 0.00000

The Genome Aggregation Database (gnomAD) 0.00001

The Genome Aggregation Database (gnomAD), exomes 0.00001

Links

ClinGen: CA013748 dbSNP: rs397516186 VarSome

Genes

Gene	OMIM	ClinGen Gene Dosage Sensitivity Curation		Variation Viewer Help Links to Variation Viewer, a genome browser to view variation data from NCBI databases.	Related variants
Gene	OMIM	HI score Help The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.	TS score Help The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.		Within gene Help The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants.	All Help 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.
MYH7		No evidence available	No evidence available	GRCh38 GRCh37	4298	5794

Conditions - Germline

Condition Help The condition for this variant-condition (RCV) record in ClinVar.	Classification Help 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 Help 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 Help The most recent date that a submitter evaluated this variant for the condition.	Variation/condition record Help The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page.
not specified	Uncertain significance (1)	criteria provided, single submitter	Apr 4, 2014	RCV000035857.7
Hypertrophic cardiomyopathy	Uncertain significance (1)	criteria provided, single submitter	Jan 27, 2026	RCV001315888.5
not provided	Uncertain significance (3)	criteria provided, multiple submitters, no conflicts	Jul 29, 2024	RCV002223768.6
Cardiovascular phenotype	Uncertain significance (1)	criteria provided, single submitter	Apr 3, 2025	RCV002460039.4
Cardiomyopathy	Uncertain significance (2)	criteria provided, multiple submitters, no conflicts	Jun 9, 2024	RCV003996209.4

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.	Expand all rows Collapse all rows Help 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.
Uncertain significance (Oct 21, 2021) C Contributing to aggregate classification	criteria provided, single submitter (ACMG Guidelines, 2015)	not provided	AiLife Diagnostics, AiLife Diagnostics Accession: SCV002502554.1 First in ClinVar: Apr 23, 2022 Last updated: Apr 23, 2022	Publications: PubMed (2) PubMed: 27532257‚ 32746448 Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: yes more Observation 1 Collection method: clinical testing Allele origin: germline Affected status: yes Number of individuals with the variant: 1 Secondary finding: no Platform type: NGS

Uncertain Significance (Jun 09, 2024) C Contributing to aggregate classification	criteria provided, single submitter (ACMG Guidelines, 2015)	Cardiomyopathy (Autosomal dominant inheritance)	All of Us Research Program, National Institutes of Health Accession: SCV004814396.2 First in ClinVar: Apr 20, 2024 Last updated: Dec 14, 2024 Comment: This study involves interpretation of variants in research participants for the purpose of population health screening. Participant phenotype was not available at the time of … (more) This study involves interpretation of variants in research participants for the purpose of population health screening. Participant phenotype was not available at the time of variant classification. Additional details can be found in publication PMID: 35346344, PMCID: PMC8962531 (less)	Publications: PubMed (2) PubMed: 27532257‚ 32746448 Comment: show This missense variant replaces glycine with glutamic acid at codon 1155 of the MYH7 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with dilated cardiomyopathy (PMID: 27532257, 32746448). This variant has been identified in 1/234610 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. (less) Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: unknown more Observation 1 Collection method: clinical testing Allele origin: germline Affected status: unknown Number of individuals with the variant: 4 Zygosity: Single Heterozygote

Uncertain significance (Jul 29, 2024) C Contributing to aggregate classification	criteria provided, single submitter (GeneDx Variant Classification Process June 2021)	not provided	GeneDx Accession: SCV005687948.1 First in ClinVar: Feb 08, 2025 Last updated: Feb 08, 2025	Comment: show Reported in patients with suspected cardiomyopathy in published literature; however, detailed clinical information was not provided (PMID: 27532257, 32746448, 37652022); 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; This variant is associated with the following publications: (PMID: 27532257, 34542152, 32746448, 37652022) (less) Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: yes Observation 1 Collection method: clinical testing Allele origin: germline Affected status: yes

Uncertain significance (Mar 03, 2023) C Contributing to aggregate classification	criteria provided, single submitter (ACMG Guidelines, 2015)	not provided	Revvity Omics, Revvity Accession: SCV003815402.3 First in ClinVar: Mar 04, 2023 Last updated: Sep 06, 2025	Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: unknown Observation 1 Collection method: clinical testing Allele origin: germline Affected status: unknown

Uncertain significance (Jan 27, 2026) C Contributing to aggregate classification	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Hypertrophic cardiomyopathy	Labcorp Genetics (formerly Invitae), Labcorp Accession: SCV001506482.4 First in ClinVar: Mar 14, 2021 Last updated: Feb 15, 2026	Publications: PubMed (3) PubMed: 27532257‚ 32746448‚ 37652022 Comment: show This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 1155 of the MYH7 protein (p.Gly1155Glu). This variant is present in population databases (rs397516186, gnomAD 0.001%). This missense change has been observed in individual(s) with clinical features of dilated cardiomyopathy (PMID: 27532257, 32746448, 37652022). ClinVar contains an entry for this variant (Variation ID: 42964). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt MYH7 protein function with a positive predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. (less) Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: unknown Observation 1 Collection method: clinical testing Allele origin: germline Affected status: unknown

Uncertain significance (Apr 04, 2014) C Contributing to aggregate classification	criteria provided, single submitter (LMM Criteria)	not specified	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine Accession: SCV000059508.5 First in ClinVar: May 03, 2013 Last updated: May 29, 2016	Comment: show proposed classification - variant undergoing re-assessment, contact laboratory (less) Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: not provided more Observation 1 Collection method: clinical testing Allele origin: germline Affected status: not provided Number of individuals with the variant: 1

Uncertain significance (May 16, 2024) C Contributing to aggregate classification	criteria provided, single submitter (ACMG Guidelines, 2015)	Cardiomyopathy	Color Diagnostics, LLC DBA Color Health Accession: SCV006064856.1 First in ClinVar: May 03, 2025 Last updated: May 03, 2025	Publications: PubMed (2) PubMed: 27532257‚ 32746448 Comment: show This missense variant replaces glycine with glutamic acid at codon 1155 of the MYH7 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with dilated cardiomyopathy (PMID: 27532257, 32746448). This variant has been identified in 1/234610 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. (less) Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: unknown more Observation 1 Collection method: clinical testing Allele origin: germline Affected status: unknown Platform type: NGS

Uncertain significance (Apr 03, 2025) C Contributing to aggregate classification	criteria provided, single submitter (Ambry Variant Classification Scheme 2023)	Cardiovascular phenotype	Ambry Genetics Accession: SCV002618037.4 First in ClinVar: Nov 29, 2022 Last updated: Jul 13, 2025	Publications: PubMed (4) PubMed: 27247418‚ 27532257‚ 31983221‚ 32746448 Comment: show The p.G1155E variant (also known as c.3464G>A), located in coding exon 25 of the MYH7 gene, results from a G to A substitution at nucleotide position 3464. The glycine at codon 1155 is replaced by glutamic acid, an amino acid with similar properties. This variant was reported in individual(s) with features consistent with dilated cardiomyopathy (Walsh R et al. Genet. Med., 2017 02;19:192-203; Mazzarotto F et al. Circulation. 2020 Feb;141(5):387-398; Burstein DS et al. Pediatr Res, 2021 May;89:1470-1476). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. (less) Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: unknown Observation 1 Collection method: clinical testing Allele origin: germline Affected status: unknown

Comment:

This missense variant replaces glycine with glutamic acid at codon 1155 of the MYH7 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with dilated cardiomyopathy (PMID: 27532257, 32746448). This variant has been identified in 1/234610 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

Comment:

Reported in patients with suspected cardiomyopathy in published literature; however, detailed clinical information was not provided (PMID: 27532257, 32746448, 37652022); 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; This variant is associated with the following publications: (PMID: 27532257, 34542152, 32746448, 37652022)

Comment:

This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 1155 of the MYH7 protein (p.Gly1155Glu). This variant is present in population databases (rs397516186, gnomAD 0.001%). This missense change has been observed in individual(s) with clinical features of dilated cardiomyopathy (PMID: 27532257, 32746448, 37652022). ClinVar contains an entry for this variant (Variation ID: 42964). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt MYH7 protein function with a positive predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Comment:

This missense variant replaces glycine with glutamic acid at codon 1155 of the MYH7 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with dilated cardiomyopathy (PMID: 27532257, 32746448). This variant has been identified in 1/234610 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

Comment:

The p.G1155E variant (also known as c.3464G>A), located in coding exon 25 of the MYH7 gene, results from a G to A substitution at nucleotide position 3464. The glycine at codon 1155 is replaced by glutamic acid, an amino acid with similar properties. This variant was reported in individual(s) with features consistent with dilated cardiomyopathy (Walsh R et al. Genet. Med., 2017 02;19:192-203; Mazzarotto F et al. Circulation. 2020 Feb;141(5):387-398; Burstein DS et al. Pediatr Res, 2021 May;89:1470-1476). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear.

Citations for germline classification of this variant

Title	Author	Journal	Year	Link
The penetrance of rare variants in cardiomyopathy-associated genes: A cross-sectional approach to estimating penetrance for secondary findings.	McGurk KA	American journal of human genetics	2023	PMID: 37652022
Genetic variant burden and adverse outcomes in pediatric cardiomyopathy.	Burstein DS	Pediatric research	2021	PMID: 32746448
Reevaluating the Genetic Contribution of Monogenic Dilated Cardiomyopathy.	Mazzarotto F	Circulation	2020	PMID: 31983221
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
Multidimensional structure-function relationships in human β-cardiac myosin from population-scale genetic variation.	Homburger JR	Proceedings of the National Academy of Sciences of the United States of America	2016	PMID: 27247418

Text-mined citations for rs397516186 ...

These citations are identified by LitVar using the rs number, so they may include citations for more than one variant at this location. Please review the LitVar results carefully for your variant of interest.

Record last updated Feb 15, 2026