rs777170587

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PP3_ModerateBS1_Supporting

The NM_002474.3(MYH11):c.4747C>T(p.Arg1583Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000415 in 1,613,792 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

MYH11
NM_002474.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:8

Conservation

PhyloP100: 1.32

Variant links:

Genes affected

MYH11 (HGNC:7569): (myosin heavy chain 11) The protein encoded by this gene is a smooth muscle myosin belonging to the myosin heavy chain family. The gene product is a subunit of a hexameric protein that consists of two heavy chain subunits and two pairs of non-identical light chain subunits. It functions as a major contractile protein, converting chemical energy into mechanical energy through the hydrolysis of ATP. A chromosomal rearrangement involving this gene is associated with acute myeloid leukemia of the M4Eo subtype. Mutations in this gene are associated with visceral myopathy, megacystis-microcolon-intestinal hypoperistalsis syndrome 2, and familial thoracic aortic aneurysm 4. [provided by RefSeq, May 2022]

MYH11 links:

NDE1 (HGNC:17619): (nudE neurodevelopment protein 1) This gene encodes a member of the nuclear distribution E (NudE) family of proteins. The encoded protein is localized at the centrosome and interacts with other centrosome components as part of a multiprotein complex that regulates dynein function. This protein plays an essential role in microtubule organization, mitosis and neuronal migration. Mutations in this gene cause lissencephaly 4, a disorder characterized by lissencephaly, severe brain atrophy, microcephaly, and severe cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2012]

NDE1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.851

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0000329 (5/151996) while in subpopulation AMR AF= 0.000197 (3/15242). AF 95% confidence interval is 0.000053. There are 0 homozygotes in gnomad4. There are 2 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH11	NM_002474.3 link	c.4747C>T	p.Arg1583Trp	missense_variant	Exon 33 of 41	ENST00000300036.6	NP_002465.1	P35749-1A0A024QZJ4
MYH11	NM_001040113.2 link	c.4768C>T	p.Arg1590Trp	missense_variant	Exon 34 of 43	ENST00000452625.7	NP_001035202.1	P35749-3
NDE1	NM_017668.3 link	c.948-3308G>A		intron_variant	Intron 8 of 8	ENST00000396354.6	NP_060138.1	Q9NXR1-2X5DR54

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MYH11	ENST00000300036.6 link	c.4747C>T	p.Arg1583Trp	missense_variant	Exon 33 of 41	1	NM_002474.3	ENSP00000300036.5	P35749-1
MYH11	ENST00000452625.7 link	c.4768C>T	p.Arg1590Trp	missense_variant	Exon 34 of 43	1	NM_001040113.2	ENSP00000407821.2	P35749-3
NDE1	ENST00000396354.6 link	c.948-3308G>A		intron_variant	Intron 8 of 8	1	NM_017668.3	ENSP00000379642.1	Q9NXR1-2

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

151996

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000194

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000480

GnomAD3 exomes

AF:

0.0000358

AC:

AN:

251414

Hom.:

AF XY:

0.0000368

AC XY:

AN XY:

135896

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000424

AC:

AN:

1461796

Hom.:

Cov.:

AF XY:

0.0000399

AC XY:

AN XY:

727206

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000441

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000329

AC:

AN:

151996

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74230

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000197

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000480

Bravo

AF:

0.0000453

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection

Uncertain:3

Feb 05, 2024

Color Diagnostics, LLC DBA Color Health

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This missense variant replaces arginine with tryptophan at codon 1590 of the MYH11 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, 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 9/251414 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. -

Jan 30, 2023

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 07, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.R1583W variant (also known as c.4747C>T), located in coding exon 32 of the MYH11 gene, results from a C to T substitution at nucleotide position 4747. The arginine at codon 1583 is replaced by tryptophan, an amino acid with dissimilar properties, and is located in the coiled coil domain. An alternate amino acid substitution at this position, p.R1583Q was reported (as p.R1590Q) in two family members with thoracic aortic aneurysms (Bee KJ et al. Circ Cardiovasc Genet, 2012 Dec;5:621-9). This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:3

Sep 25, 2020

Mayo Clinic Laboratories, Mayo Clinic

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 24, 2024

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Identified in patients with TAAD referred for genetic testing at GeneDx and in the published literature (PMID: 29543232); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 30202019, 29543232) -

Oct 07, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The MYH11 c.4747C>T; p.Arg1583Trp variant (rs777170587, ClinVar Variation ID: 519925) is reported in the literature in an individual affected with thoracic aortic aneurysm (Weerakkody 2018). This variant is found in the general population with an overall allele frequency of 0.004% (9/251,414 alleles) in the Genome Aggregation Database (v2.1.1). Computational analyses predict that this variant is deleterious (REVEL: 0.746). Due to limited information, the clinical significance of this variant is uncertain at this time. References: Weerakkody R et al. Targeted genetic analysis in a large cohort of familial and sporadic cases of aneurysm or dissection of the thoracic aorta. Genet Med. 2018 Nov;20(11):1414-1422. PMID: 29543232. -

Aortic aneurysm, familial thoracic 4

Uncertain:2

Oct 31, 2018

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 31, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1590 of the MYH11 protein (p.Arg1590Trp). This variant is present in population databases (rs777170587, gnomAD 0.009%). This missense change has been observed in individual(s) with clinical features of MYH11-related conditions (PMID: 29543232). This variant is also known as c.4747C>T (p.Arg1583Trp). ClinVar contains an entry for this variant (Variation ID: 519925). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt MYH11 protein function with a negative predictive value of 80%. This variant disrupts the p.Arg1590 amino acid residue in MYH11. Other variant(s) that disrupt this residue have been observed in individuals with MYH11-related conditions (PMID: 23099432, 29543232), which suggests that this may be a clinically significant amino acid residue. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.73

BayesDel_addAF

Uncertain

0.012

BayesDel_noAF

Uncertain

-0.020

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.85

.;.;.;D

Eigen

Uncertain

0.46

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.78

LIST_S2

Pathogenic

0.99

D;D;D;D

M_CAP

Pathogenic

0.46

MetaRNN

Pathogenic

0.85

D;D;D;D

MetaSVM

Uncertain

0.38

MutationAssessor

Pathogenic

3.4

.;.;M;M

PrimateAI

Pathogenic

0.80

PROVEAN

Pathogenic

-6.3

D;D;.;D

REVEL

Pathogenic

0.75

Sift

Pathogenic

0.0

D;D;.;D

Sift4G

Pathogenic

0.0

D;D;D;D

Polyphen

1.0

.;.;.;D

Vest4

0.85

MutPred

0.61

.;.;Gain of catalytic residue at A1582 (P = 0.1294);Gain of catalytic residue at A1582 (P = 0.1294);

MVP

0.75

MPC

0.73

ClinPred

0.98

GERP RS

2.8

Varity_R

0.73

gMVP

0.63

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over