NM_000432.4(MYL2):c.353+6T>A AND Hypertrophic cardiomyopathy 10

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Nov 8, 2022
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:: RCV000203063.8

Allele description [Variation Report for NM_000432.4(MYL2):c.353+6T>A]

NM_000432.4(MYL2):c.353+6T>A

Gene:

MYL2:myosin light chain 2 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

12q24.11

Genomic location:

Preferred name:

NM_000432.4(MYL2):c.353+6T>A

HGVS:

NC_000012.12:g.110913240A>T
NG_007554.1:g.12338T>A
NM_000432.4:c.353+6T>AMANE SELECT
LRG_393t1:c.353+6T>A
LRG_393:g.12338T>A
NC_000012.11:g.111351044A>T
NM_000432.3:c.353+6T>A

Links:

dbSNP: rs372824804

NCBI 1000 Genomes Browser:

rs372824804

Molecular consequence:

NM_000432.4:c.353+6T>A - intron variant - [Sequence Ontology: SO:0001627]

Condition(s)

Name:: Hypertrophic cardiomyopathy 10
Synonyms:: CARDIOMYOPATHY, HYPERTROPHIC, MID-LEFT VENTRICULAR CHAMBER TYPE, 2; Familial hypertrophic cardiomyopathy 10; MYL2-Related Familial Hypertrophic Cardiomyopathy
Identifiers:: MONDO: MONDO:0012112; MedGen: C1834460; OMIM: 608758

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000257693	Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia	criteria provided, single submitter (DGD Variant Analysis Guidelines)	Uncertain significance (Feb 16, 2015)	unknown	clinical testing	DGD_Variant_Analysis_Guidelines.docx, Citation Link,
SCV001567036	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Nov 8, 2022)	germline	clinical testing	PubMed (3) [See all records that cite these PMIDs] 17576681, 9536098, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000257693

Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia

criteria provided, single submitter

(DGD Variant Analysis Guidelines)

Uncertain significance
(Feb 16, 2015)

unknown

clinical testing

DGD_Variant_Analysis_Guidelines.docx,

Citation Link,

SCV001567036

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Nov 8, 2022)

germline

clinical testing

PubMed (3)
[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
not provided	unknown	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Aberrant 5' splice sites in human disease genes: mutation pattern, nucleotide structure and comparison of computational tools that predict their utilization.

Buratti E, Chivers M, Královicová J, Romano M, Baralle M, Krainer AR, Vorechovsky I.

Nucleic Acids Res. 2007;35(13):4250-63. Epub 2007 Jun 18.

PubMed [citation]

PMID:: 17576681
PMCID:: PMC1934990

Statistical features of human exons and their flanking regions.

Zhang MQ.

Hum Mol Genet. 1998 May;7(5):919-32.

PubMed [citation]

PMID:: 9536098

See all PubMed Citations (3)

Details of each submission

From Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia, SCV000257693.2

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

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

From Labcorp Genetics (formerly Invitae), Labcorp, SCV001567036.4

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (3)

Description

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. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. ClinVar contains an entry for this variant (Variation ID: 218455). This variant has not been reported in the literature in individuals affected with MYL2-related conditions. This variant is present in population databases (rs372824804, gnomAD 0.002%). This sequence change falls in intron 5 of the MYL2 gene. It does not directly change the encoded amino acid sequence of the MYL2 protein. It affects a nucleotide within the consensus splice site.

#	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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