VCV000628688.9 - ClinVar

NM_002474.3(MYH11):c.5453C>T (p.Ala1818Val)

Germline

Classification

The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.

(4)

Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.

Uncertain significance

criteria provided, multiple submitters, no conflicts

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NM_002474.3(MYH11):c.5453C>T (p.Ala1818Val)

Variation ID: 628688 Accession: VCV000628688.9

Type and length

single nucleotide variant, 1 bp

Location

Cytogenetic: 16p13.11 16: 15717191 (GRCh38) [ NCBI UCSC ] 16: 15811048 (GRCh37) [ NCBI UCSC ]

Timeline in ClinVar

	First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.	Last submission Help The date of the most recent submission for each type of classification for this variant.	Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline	May 20, 2019	May 1, 2024	Dec 21, 2023

HGVS

Nucleotide	Protein	Molecular consequence
NM_002474.3:c.5453C>T MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_002465.1:p.Ala1818Val	missense
NM_017668.3:c.948-7000G>A MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.		intron variant
NM_001040113.2:c.5474C>T MANE Plus Clinical Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_001035202.1:p.Ala1825Val	missense
NM_001040114.2:c.5474C>T	NP_001035203.1:p.Ala1825Val	missense
NM_001143979.2:c.948-7000G>A		intron variant
NM_022844.3:c.5453C>T	NP_074035.1:p.Ala1818Val	missense
NC_000016.10:g.15717191G>A
NC_000016.9:g.15811048G>A
NG_009299.1:g.144840C>T
NG_021210.1:g.78925G>A
LRG_1401:g.144840C>T
LRG_1401t1:c.5453C>T	LRG_1401p1:p.Ala1818Val
LRG_1401t2:c.5474C>T	LRG_1401p2:p.Ala1825Val

... more HGVS ... less HGVS

Protein change

A1818V, A1825V

Other names

Canonical SPDI

NC_000016.10:15717190:G:A

Functional consequence Help The effect of the variant on RNA or protein function, based on experimental evidence from submitters.

Global minor allele frequency (GMAF) Help The global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.

Allele frequency Help The frequency of the allele represented by this VCV record.

Exome Aggregation Consortium (ExAC) 0.00001

The Genome Aggregation Database (gnomAD) 0.00001

The Genome Aggregation Database (gnomAD), exomes 0.00001

Trans-Omics for Precision Medicine (TOPMed) 0.00001

Links

dbSNP: rs771343446 VarSome

Genes

Gene	OMIM	ClinGen Gene Dosage Sensitivity Curation		Variation Viewer Help Links to Variation Viewer, a genome browser to view variation data from NCBI databases.	Related variants
Gene	OMIM	HI score Help The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.	TS score Help The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.		Within gene Help The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants.	All Help The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene.
MYH11		No evidence available	No evidence available	GRCh38 GRCh38 GRCh37	2040	3813
NDE1		-	-	GRCh38 GRCh38 GRCh37	186	1959

Conditions - Germline

Condition Help The condition for this variant-condition (RCV) record in ClinVar.	Classification Help The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions)	Review status Help The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status.	Last evaluated Help The most recent date that a submitter evaluated this variant for the condition.	Variation/condition record Help The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page.
Familial thoracic aortic aneurysm and aortic dissection	Uncertain significance (3)	criteria provided, multiple submitters, no conflicts	May 31, 2023	RCV000773349.9
Aortic aneurysm, familial thoracic 4	Uncertain significance (1)	criteria provided, single submitter	Dec 21, 2023	RCV003629135.2

Submissions - Germline

Classification Help The submitted germline classification for each SCV record. (Last evaluated)	Review status Help Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria)	Condition Help The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant.	Submitter Help The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar.	More information Help This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter.
Uncertain significance (Nov 08, 2022)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	Familial thoracic aortic aneurysm and aortic dissection Affected status: unknown Allele origin: germline	Color Diagnostics, LLC DBA Color Health Accession: SCV000907042.4 First in ClinVar: May 20, 2019 Last updated: Feb 14, 2024	Comment: This missense variant replaces alanine with valine at codon 1825 of the MYH11 protein. Computational prediction suggests that this variant may not impact protein structure … (more) This missense variant replaces alanine with valine at codon 1825 of the MYH11 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 4/282718 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The 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. (less)
Uncertain significance (Oct 12, 2021)	criteria provided, single submitter (Ambry Variant Classification Scheme 2023) Method: clinical testing	Familial thoracic aortic aneurysm and aortic dissection Affected status: unknown Allele origin: germline	Ambry Genetics Accession: SCV002648134.2 First in ClinVar: Nov 29, 2022 Last updated: May 01, 2024	Comment: The c.5453C>T (p.A1818V) alteration is located in exon 38 (coding exon 37) of the MYH11 gene. This alteration results from a C to T substitution … (more) The c.5453C>T (p.A1818V) alteration is located in exon 38 (coding exon 37) of the MYH11 gene. This alteration results from a C to T substitution at nucleotide position 5453, causing the alanine (A) at amino acid position 1818 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. (less)
Uncertain significance (Dec 21, 2023)	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015)) Method: clinical testing	Aortic aneurysm, familial thoracic 4 Affected status: unknown Allele origin: germline	Labcorp Genetics (formerly Invitae), Labcorp Accession: SCV004551828.1 First in ClinVar: Feb 20, 2024 Last updated: Feb 20, 2024	Comment: This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1825 of the MYH11 protein (p.Ala1825Val). … (more) This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1825 of the MYH11 protein (p.Ala1825Val). This variant is present in population databases (rs771343446, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with MYH11-related conditions. ClinVar contains an entry for this variant (Variation ID: 628688). 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 MYH11 protein function with a negative predictive value of 95%. 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. (less)
Uncertain Significance (May 31, 2023)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	Familial thoracic aortic aneurysm and aortic dissection (Autosomal dominant inheritance) Affected status: unknown Allele origin: germline	All of Us Research Program, National Institutes of Health Accession: SCV004815534.1 First in ClinVar: Apr 20, 2024 Last updated: Apr 20, 2024 Comment: This study involves interpretation of variants in research participants for the purpose of population health screening. Participant phenotype was not available at the time of … (more) This study involves interpretation of variants in research participants for the purpose of population health screening. Participant phenotype was not available at the time of variant classification. Additional details can be found in publication PMID: 35346344, PMCID: PMC8962531 (less)	Comment: This missense variant replaces alanine with valine at codon 1825 of the MYH11 protein. Computational prediction suggests that this variant may not impact protein structure … (more) This missense variant replaces alanine with valine at codon 1825 of the MYH11 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 4/282718 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The 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. (less) Number of individuals with the variant: 2

Comment:

This missense variant replaces alanine with valine at codon 1825 of the MYH11 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 4/282718 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The 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.

Comment:

The c.5453C>T (p.A1818V) alteration is located in exon 38 (coding exon 37) of the MYH11 gene. This alteration results from a C to T substitution at nucleotide position 5453, causing the alanine (A) at amino acid position 1818 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.

Comment:

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1825 of the MYH11 protein (p.Ala1825Val). This variant is present in population databases (rs771343446, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with MYH11-related conditions. ClinVar contains an entry for this variant (Variation ID: 628688). 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 MYH11 protein function with a negative predictive value of 95%. 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.

Comment:

Germline Functional Evidence

There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar.

Comment:

Citations for germline classification of this variant

There are no citations for germline classification of this variant in ClinVar. If you know of citations for this variation, please consider submitting that information to ClinVar.

Text-mined citations for rs771343446 ...

These citations are identified by LitVar using the rs number, so they may include citations for more than one variant at this location. Please review the LitVar results carefully for your variant of interest.

Record last updated Sep 29, 2024

ClinVar Genomic variation as it relates to human health

NM_002474.3(MYH11):c.5453C>T (p.Ala1818Val)

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for rs771343446 ...