NM_000257.4(MYH7):c.3154A>G (p.Lys1052Glu) AND Cardiomyopathy

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Dec 5, 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:: RCV000770480.6

Allele description [Variation Report for NM_000257.4(MYH7):c.3154A>G (p.Lys1052Glu)]

NM_000257.4(MYH7):c.3154A>G (p.Lys1052Glu)

Gene:

MYH7:myosin heavy chain 7 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

14q11.2

Genomic location:

Preferred name:

NM_000257.4(MYH7):c.3154A>G (p.Lys1052Glu)

HGVS:

NC_000014.9:g.23422271T>C
NG_007884.1:g.18391A>G
NM_000257.4:c.3154A>GMANE SELECT
NP_000248.2:p.Lys1052Glu
LRG_384t1:c.3154A>G
LRG_384:g.18391A>G
NC_000014.8:g.23891480T>C
NM_000257.2:c.3154A>G
NM_000257.3:c.3154A>G

Protein change:

K1052E

Links:

dbSNP: rs1566529274

NCBI 1000 Genomes Browser:

rs1566529274

Molecular consequence:

NM_000257.4:c.3154A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

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

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000901924	CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario - Canadian Open Genetics Repository	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Dec 28, 2016)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001350649	Color Diagnostics, LLC DBA Color Health	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Dec 5, 2023)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000901924

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario - Canadian Open Genetics Repository

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(Dec 28, 2016)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

SCV001350649

Color Diagnostics, LLC DBA Color Health

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(Dec 5, 2023)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

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 CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario - Canadian Open Genetics Repository, SCV000901924.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Color Diagnostics, LLC DBA Color Health, SCV001350649.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This missense variant replaces lysine with glutamic acid at codon 1052 of the MYH7 protein. Computational prediction tools and conservation analyses suggest that this variant may have deleterious impact on the protein function. Computational splicing tools suggest that this variant may not impact RNA splicing. To our knowledge, functional assays have not been performed for this variant nor has this variant been reported in individuals affected with cardiovascular disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). 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.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Feb 20, 2024

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