NM_002471.4(MYH6):c.2398C>T (p.Arg800Cys) AND Hypertrophic cardiomyopathy 14

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Nov 22, 2023
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:: RCV001879598.4

Allele description [Variation Report for NM_002471.4(MYH6):c.2398C>T (p.Arg800Cys)]

NM_002471.4(MYH6):c.2398C>T (p.Arg800Cys)

Gene:

MYH6:myosin heavy chain 6 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

14q11.2

Genomic location:

Preferred name:

NM_002471.4(MYH6):c.2398C>T (p.Arg800Cys)

HGVS:

NC_000014.9:g.23396315G>A
NG_023444.1:g.16963C>T
NM_002471.3:c.2398C>T
NM_002471.4:c.2398C>TMANE SELECT
NP_002462.2:p.Arg800Cys
LRG_389:g.16963C>T
NC_000014.8:g.23865524G>A

Protein change:

R800C

Links:

dbSNP: rs763477425

NCBI 1000 Genomes Browser:

rs763477425

Molecular consequence:

NM_002471.4:c.2398C>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Hypertrophic cardiomyopathy 14
Synonyms:: Familial hypertrophic cardiomyopathy 14
Identifiers:: MONDO: MONDO:0013197; MedGen: C2750467; OMIM: 613251

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV002144531	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Nov 22, 2023)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 35993536, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV002144531

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Nov 22, 2023)

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

Identification and genetic analysis of rare variants in myosin family genes in 412 Han Chinese congenital heart disease patients.

Zhang Y, Peng R, Wang H.

Mol Genet Genomic Med. 2022 Oct;10(10):e2041. doi: 10.1002/mgg3.2041. Epub 2022 Aug 22.

PubMed [citation]

PMID:: 35993536
PMCID:: PMC9544220

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, SCV002144531.3

#	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 arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 800 of the MYH6 protein (p.Arg800Cys). This variant is present in population databases (rs763477425, gnomAD 0.02%). This missense change has been observed in individual(s) with congenital heart disease (PMID: 35993536). ClinVar contains an entry for this variant (Variation ID: 1375285). 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 MYH6 protein function with a positive predictive value of 80%. 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

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