rs890856227

Positions:

chr16-15719283-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP2

The NM_002474.3(MYH11):c.5108G>A(p.Arg1703His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000868 in 1,612,420 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R1703C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

MYH11
NM_002474.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.15

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.

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.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MYH11	NM_002474.3 linkuse as main transcript	c.5108G>A	p.Arg1703His	missense_variant	36/41	ENST00000300036.6
MYH11	NM_001040113.2 linkuse as main transcript	c.5129G>A	p.Arg1710His	missense_variant	37/43	ENST00000452625.7
NDE1	NM_017668.3 linkuse as main transcript	c.948-4908C>T		intron_variant		ENST00000396354.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYH11	ENST00000300036.6 linkuse as main transcript	c.5108G>A	p.Arg1703His	missense_variant	36/41	1	NM_002474.3	P3	P35749-1
MYH11	ENST00000452625.7 linkuse as main transcript	c.5129G>A	p.Arg1710His	missense_variant	37/43	1	NM_001040113.2		P35749-3
NDE1	ENST00000396354.6 linkuse as main transcript	c.948-4908C>T		intron_variant		1	NM_017668.3	P1	Q9NXR1-2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250312

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135392

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000868

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000685

AC:

AN:

1460266

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

726520

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000193

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152154

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74316

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Aortic aneurysm, familial thoracic 4

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 29, 2021

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1710 of the MYH11 protein (p.Arg1710His). This variant is present in population databases (no rsID available, gnomAD 0.009%). 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: 534156). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. 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

Benign

0.21

BayesDel_addAF

Uncertain

0.050

BayesDel_noAF

Uncertain

0.030

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.78

.;.;.;D

Eigen

Uncertain

0.46

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Benign

0.41

LIST_S2

Pathogenic

0.98

D;D;D;D

M_CAP

Pathogenic

0.31

MetaRNN

Uncertain

0.68

D;D;D;D

MetaSVM

Pathogenic

0.83

MutationAssessor

Pathogenic

3.5

.;.;H;H

MutationTaster

Benign

1.0

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

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-4.0

D;D;.;D

REVEL

Uncertain

0.54

Sift

Uncertain

0.0030

D;D;.;D

Sift4G

Uncertain

0.0020

D;D;D;D

Polyphen

1.0

.;.;.;D

Vest4

0.54

MutPred

0.66

.;.;Gain of glycosylation at K1704 (P = 0.11);Gain of glycosylation at K1704 (P = 0.11);

MVP

0.85

MPC

0.78

ClinPred

0.97

GERP RS

5.6

Varity_R

0.39

gMVP

0.49

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