16-15720924-A-G

Position:

chr16-15720924-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 1P and 1B. PP2BP4

The ENST00000300036.6(MYH11):c.4706T>C(p.Met1569Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000103 in 1,613,788 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M1569I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

MYH11
ENST00000300036.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:7

Conservation

PhyloP100: 5.17

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 0 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), MYH11. . Gene score misZ 1.4389 (greater than the threshold 3.09). Trascript score misZ 3.4142 (greater than threshold 3.09). GenCC has associacion of gene with aortic aneurysm, familial thoracic 4, visceral myopathy 2, familial thoracic aortic aneurysm and aortic dissection, megacystis-microcolon-intestinal hypoperistalsis syndrome 2, megacystis-microcolon-intestinal hypoperistalsis syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.40905017).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
MYH11	NM_002474.3 linkuse as main transcript	c.4706T>C	p.Met1569Thr	missense_variant	33/41	ENST00000300036.6	NP_002465.1
MYH11	NM_001040113.2 linkuse as main transcript	c.4727T>C	p.Met1576Thr	missense_variant	34/43	ENST00000452625.7	NP_001035202.1
NDE1	NM_017668.3 linkuse as main transcript	c.948-3267A>G		intron_variant		ENST00000396354.6	NP_060138.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYH11	ENST00000300036.6 linkuse as main transcript	c.4706T>C	p.Met1569Thr	missense_variant	33/41	1	NM_002474.3	ENSP00000300036	P3	P35749-1
MYH11	ENST00000452625.7 linkuse as main transcript	c.4727T>C	p.Met1576Thr	missense_variant	34/43	1	NM_001040113.2	ENSP00000407821		P35749-3
NDE1	ENST00000396354.6 linkuse as main transcript	c.948-3267A>G		intron_variant		1	NM_017668.3	ENSP00000379642	P1	Q9NXR1-2

Frequencies

GnomAD3 genomes

AF:

0.0000790

AC:

AN:

151910

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000358

AC:

AN:

251484

Hom.:

AF XY:

0.0000294

AC XY:

AN XY:

135918

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000615

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000105

AC:

154

AN:

1461878

Hom.:

Cov.:

AF XY:

0.0000976

AC XY:

AN XY:

727242

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000138

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000790

AC:

AN:

151910

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

74192

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000162

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000754

Hom.:

Bravo

AF:

0.0000680

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000228

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Aug 10, 2020	The MYH11 c.4706T>C; p.Met1569Thr variant (rs145074004), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 465739). This variant is only observed on ten alleles in the Genome Aggregation Database, indicating it is not a common polymorphism. The methionine at codon 1569 is highly conserved, and computational analyses (SIFT: damaging, PolyPhen-2: benign) predict conflicting effects of this variant on protein structure/function. Due to limited information, the clinical significance of the p.Met1569Thr variant is uncertain at this time. -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Oct 26, 2022	Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function -
Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Oct 06, 2020	- -

Familial thoracic aortic aneurysm and aortic dissection

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Feb 09, 2023	This missense variant replaces methionine with threonine at codon 1576 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 MYH11-related disorders in the literature. This variant has been identified in 10/282820 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. -
Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	Feb 07, 2023	The p.M1569T variant (also known as c.4706T>C), located in coding exon 32 of the MYH11 gene, results from a T to C substitution at nucleotide position 4706. The methionine at codon 1569 is replaced by threonine, an amino acid with similar properties, and is located in the coiled-coil domain. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Aortic aneurysm, familial thoracic 4

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 24, 2024

This sequence change replaces methionine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 1576 of the MYH11 protein (p.Met1576Thr). This variant is present in population databases (rs145074004, gnomAD 0.007%). 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: 465739). 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. -

Aortic aneurysm, familial thoracic 4;C5543466:Visceral myopathy 2;C5543476:Megacystis-microcolon-intestinal hypoperistalsis syndrome 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 28, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.49

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Pathogenic

0.28

CADD

Uncertain

DANN

Benign

0.94

DEOGEN2

Uncertain

0.72

.;.;.;D

Eigen

Benign

0.086

Eigen_PC

Benign

0.21

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.83

T;T;T;T

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.41

T;T;T;T

MetaSVM

Uncertain

-0.16

MutationAssessor

Pathogenic

3.1

.;.;M;M

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D

PrimateAI

Pathogenic

0.85

PROVEAN

Uncertain

-3.6

D;D;.;D

REVEL

Pathogenic

0.75

Sift

Uncertain

0.011

D;D;.;D

Sift4G

Uncertain

0.0030

D;D;D;D

Polyphen

0.018

.;.;.;B

Vest4

0.58

MVP

0.92

MPC

0.21

ClinPred

0.41

GERP RS

5.0

Varity_R

0.60

gMVP

0.61

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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