NM_000257.4(MYH7):c.4772T>A (p.Leu1591Gln) AND Hypertrophic cardiomyopathy

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Sep 12, 2022
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

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:: RCV001211825.4

Allele description [Variation Report for NM_000257.4(MYH7):c.4772T>A (p.Leu1591Gln)]

NM_000257.4(MYH7):c.4772T>A (p.Leu1591Gln)

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.4772T>A (p.Leu1591Gln)

HGVS:

NC_000014.9:g.23416185A>T
NG_007884.1:g.24477T>A
NM_000257.4:c.4772T>AMANE SELECT
NP_000248.2:p.Leu1591Gln
LRG_384t1:c.4772T>A
LRG_384:g.24477T>A
NC_000014.8:g.23885394A>T
NM_000257.2:c.4772T>A
NM_000257.3:c.4772T>A
NR_126491.1:n.446A>T

Protein change:

L1591Q

Links:

dbSNP: rs730880808

NCBI 1000 Genomes Browser:

rs730880808

Molecular consequence:

NM_000257.4:c.4772T>A - missense variant - [Sequence Ontology: SO:0001583]
NR_126491.1:n.446A>T - non-coding transcript variant - [Sequence Ontology: SO:0001619]

Condition(s)

Name:: Hypertrophic cardiomyopathy
Synonyms:: HYPERTROPHIC MYOCARDIOPATHY
Identifiers:: MONDO: MONDO:0005045; MeSH: D002312; MedGen: C0007194; Human Phenotype Ontology: HP:0001639

Recent activity

Clear Turn Off Turn On

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

Help

Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001383384	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Sep 12, 2022)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 22918376, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001383384

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Sep 12, 2022)

germline

clinical testing

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

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

Myosinopathies: pathology and mechanisms.

Tajsharghi H, Oldfors A.

Acta Neuropathol. 2013 Jan;125(1):3-18. doi: 10.1007/s00401-012-1024-2. Epub 2012 Aug 5. Review.

PubMed [citation]

PMID:: 22918376
PMCID:: PMC3535372

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV001383384.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (2)

Description

This sequence change replaces leucine, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 1591 of the MYH7 protein (p.Leu1591Gln). This variant is present in population databases (rs730880808, gnomAD 0.007%). This missense change has been observed in individual(s) with Laing distal myopathy (PMID: 22918376). ClinVar contains an entry for this variant (Variation ID: 181265). 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 not expected to disrupt MYH7 protein function. 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.

#	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: Sep 29, 2024

ClinVar

Relating variation to medicine