NM_002474.3:c.5336C>G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_002474.3(MYH11):c.5336C>G(p.Thr1779Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000685 in 1,459,638 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1779M) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

MYH11
NM_002474.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 3.35

Publications

4 publications found

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 Gene-Disease associations (from GenCC):

lissencephaly 4
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: PanelApp Australia, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
hydranencephaly
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
microlissencephaly
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
NDE1-related microhydranencephaly
Inheritance: Unknown, AR Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

NDE1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.1661079).

BP6

Variant 16-15717308-G-C is Benign according to our data. Variant chr16-15717308-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1675103.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH11	NM_002474.3 link	c.5336C>G	p.Thr1779Arg	missense_variant	Exon 38 of 41	ENST00000300036.6	NP_002465.1	P35749-1A0A024QZJ4
MYH11	NM_001040113.2 link	c.5357C>G	p.Thr1786Arg	missense_variant	Exon 39 of 43	ENST00000452625.7	NP_001035202.1	P35749-3
NDE1	NM_017668.3 link	c.948-6883G>C		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.5336C>G	p.Thr1779Arg	missense_variant	Exon 38 of 41	1	NM_002474.3	ENSP00000300036.5	P35749-1
MYH11	ENST00000452625.7 link	c.5357C>G	p.Thr1786Arg	missense_variant	Exon 39 of 43	1	NM_001040113.2	ENSP00000407821.2	P35749-3
NDE1	ENST00000396354.6 link	c.948-6883G>C		intron_variant	Intron 8 of 8	1	NM_017668.3	ENSP00000379642.1	Q9NXR1-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000120

AC:

AN:

249188

AF XY:

0.0000148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000685

AC:

AN:

1459638

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51200

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000809

AC:

AN:

1111998

Other (OTH)

AF:

0.00

AC:

AN:

60382

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Aortic aneurysm, familial thoracic 4

Uncertain:2

Dec 19, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with arginine, which is basic and polar, at codon 1786 of the MYH11 protein (p.Thr1786Arg). This variant is present in population databases (no rsID available, gnomAD 0.006%). 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: 1675103). 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 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. -

Feb 22, 2022

Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

MYH11 NM_002474.3 exon 38 p.Thr1779Arg (c.5336C>G): This variant has not been reported in the literature but is present in 0.005% (1/18382) of East Asian alleles in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/16-15811165-G-C?dataset=gnomad_r2_1). Evolutionary conservation and computational predictive tools suggest that this variant may not impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

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

Uncertain:1

Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant has not been reported in the literature but is present in 0.005% (1/18382) of East Asian alleles in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/16-15811165-G-C?dataset=gnomad_r2_1). Evolutionary conservation and computational predictive tools suggest that this variant may not impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

Familial thoracic aortic aneurysm and aortic dissection

Benign:1

Apr 06, 2025

Color Diagnostics, LLC DBA Color Health

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.32

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.34

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.39

.;.;.;T

Eigen

Benign

-0.36

Eigen_PC

Benign

-0.34

FATHMM_MKL

Benign

0.60

LIST_S2

Uncertain

0.94

D;D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.17

T;T;T;T

MetaSVM

Benign

-0.29

MutationAssessor

Uncertain

2.0

.;.;M;M

PhyloP100

3.4

PrimateAI

Benign

0.37

PROVEAN

Benign

-1.4

N;N;.;N

REVEL

Benign

0.18

Sift

Benign

0.37

T;T;.;T

Sift4G

Benign

0.35

T;T;T;T

Polyphen

0.032

.;.;.;B

Vest4

0.28

MutPred

0.38

.;.;Loss of phosphorylation at T1779 (P = 0.0078);Loss of phosphorylation at T1779 (P = 0.0078);

MVP

0.64

MPC

0.36

ClinPred

0.26

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.13

gMVP

0.29

Mutation Taster

=91/9

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over