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NM_000257.4(MYH7):c.5026C>T (p.Arg1676Trp) AND Cardiomyopathy

Germline classification:
Uncertain significance (2 submissions)
Last evaluated:
Dec 13, 2023
Review status:
2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts
Somatic classification
of clinical impact:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Somatic classification
of oncogenicity:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Record status:
current
Accession:
RCV001177405.13

Allele description [Variation Report for NM_000257.4(MYH7):c.5026C>T (p.Arg1676Trp)]

NM_000257.4(MYH7):c.5026C>T (p.Arg1676Trp)

Genes:
LOC126861897:BRD4-independent group 4 enhancer GRCh37_chr14:23884455-23885654 [Gene]
MYH7:myosin heavy chain 7 [Gene - OMIM - HGNC]
MHRT:myosin heavy chain associated RNA transcript [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
14q11.2
Genomic location:
Preferred name:
NM_000257.4(MYH7):c.5026C>T (p.Arg1676Trp)
HGVS:
  • NC_000014.9:g.23415760G>A
  • NG_007884.1:g.24902C>T
  • NM_000257.4:c.5026C>TMANE SELECT
  • NP_000248.2:p.Arg1676Trp
  • LRG_384t1:c.5026C>T
  • LRG_384:g.24902C>T
  • NC_000014.8:g.23884969G>A
  • NM_000257.2:c.5026C>T
  • NM_000257.3:c.5026C>T
  • NR_126491.1:n.192G>A
Protein change:
R1676W
Links:
dbSNP: rs753115999
NCBI 1000 Genomes Browser:
rs753115999
Molecular consequence:
  • NM_000257.4:c.5026C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NR_126491.1:n.192G>A - non-coding transcript variant - [Sequence Ontology: SO:0001619]
Observations:
8

Condition(s)

Name:
Cardiomyopathy (CMYO)
Synonyms:
Cardiomyopathies
Identifiers:
MONDO: MONDO:0004994; MedGen: C0878544; Human Phenotype Ontology: HP:0001638

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV001341608Color Diagnostics, LLC DBA Color Health
criteria provided, single submitter

(ACMG Guidelines, 2015)		Uncertain significance
(Jun 28, 2023) 		germlineclinical testing

PubMed (2)
[See all records that cite these PMIDs]

SCV004824183All of Us Research Program, National Institutes of Health
criteria provided, single submitter

(ACMG Guidelines, 2015)		Uncertain Significance
(Dec 13, 2023) 		germlineclinical testing

PubMed (2)
[See all records that cite these PMIDs]

Help

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknown8not providednot provided108544not providedclinical testing

Citations

PubMed

Implications of Genetic Testing in Dilated Cardiomyopathy.

Verdonschot JAJ, Hazebroek MR, Krapels IPC, Henkens MTHM, Raafs A, Wang P, Merken JJ, Claes GRF, Vanhoutte EK, van den Wijngaard A, Heymans SRB, Brunner HG.

Circ Genom Precis Med. 2020 Oct;13(5):476-487. doi: 10.1161/CIRCGEN.120.003031. Epub 2020 Sep 3.

PubMed [citation]
PMID:
32880476

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]
PMID:
25741868
PMCID:
PMC4544753

Details of each submission

From Color Diagnostics, LLC DBA Color Health, SCV001341608.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (2)

Description

This missense variant replaces arginine with tryptophan at codon 1676 of the MYH7 protein. Computational prediction suggests that this variant may have a 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 one individual affected with dilated cardiomyopathy (PMID: 32880476). This variant has been identified in 3/251388 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.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

From All of Us Research Program, National Institutes of Health, SCV004824183.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided8not providednot providedclinical testing PubMed (2)

Description

This missense variant replaces arginine with tryptophan at codon 1676 of the MYH7 protein. Computational prediction suggests that this variant may have a 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 one individual affected with dilated cardiomyopathy (PMID: 32880476). This variant has been identified in 3/251388 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.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknown108544not providednot provided8not providednot providednot provided

Last Updated: Oct 8, 2024