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NM_000257.4(MYH7):c.732+1G>T AND Hypertrophic cardiomyopathy

Germline classification:
Pathogenic (1 submission)
Last evaluated:
Mar 24, 2020
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:
RCV001383488.7

Allele description [Variation Report for NM_000257.4(MYH7):c.732+1G>T]

NM_000257.4(MYH7):c.732+1G>T

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.732+1G>T
HGVS:
  • NC_000014.9:g.23431584C>A
  • NG_007884.1:g.9078G>T
  • NM_000257.4:c.732+1G>TMANE SELECT
  • NM_001407004.1:c.732+1G>T
  • LRG_384:g.9078G>T
  • NC_000014.8:g.23900793C>A
Links:
dbSNP: rs730880850
NCBI 1000 Genomes Browser:
rs730880850
Molecular consequence:
  • NM_000257.4:c.732+1G>T - splice donor variant - [Sequence Ontology: SO:0001575]
  • NM_001407004.1:c.732+1G>T - splice donor variant - [Sequence Ontology: SO:0001575]

Condition(s)

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

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV001582639Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Pathogenic
(Mar 24, 2020) 		germlineclinical testing

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

Help

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Citations

PubMed

Mutations in sarcomere protein genes in left ventricular noncompaction.

Klaassen S, Probst S, Oechslin E, Gerull B, Krings G, Schuler P, Greutmann M, Hürlimann D, Yegitbasi M, Pons L, Gramlich M, Drenckhahn JD, Heuser A, Berger F, Jenni R, Thierfelder L.

Circulation. 2008 Jun 3;117(22):2893-901. doi: 10.1161/CIRCULATIONAHA.107.746164. Epub 2008 May 27.

PubMed [citation]
PMID:
18506004

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, SCV001582639.4

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

Description

For these reasons, this variant has been classified as Pathogenic. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site, but this prediction has not been confirmed by published transcriptional studies. Disruption of this splice site has been observed in individual(s) with left ventricular noncompaction (PMID: 18506004). It has also been observed to segregate with disease in related individuals. This splice site is also known as 818+1G in the literature. This variant is not present in population databases (ExAC no frequency). This sequence change affects a donor splice site in intron 8 of the MYH7 gene. It is expected to disrupt RNA splicing and likely results in an absent or disrupted protein product.

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

Last Updated: Sep 29, 2024