rs150883363

Variant names:

• chr16-15724729-C-G
• NM_002474.3:c.4034G>C

Your query was ambiguous. Multiple possible variants found:

• chr16-15724729-C-G
• chr16-15724729-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002474.3(MYH11):​c.4034G>C​(p.Arg1345Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: MYH11 NM_002474.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.52

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]

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH11	NM_002474.3	c.4034G>C	p.Arg1345Pro	missense_variant	Exon 30 of 41	ENST00000300036.6	NP_002465.1
MYH11	NM_001040113.2	c.4055G>C	p.Arg1352Pro	missense_variant	Exon 31 of 43	ENST00000452625.7	NP_001035202.1
NDE1	NM_017668.3	c.*478C>G		3_prime_UTR_variant	Exon 9 of 9	ENST00000396354.6	NP_060138.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYH11	ENST00000300036.6	c.4034G>C	p.Arg1345Pro	missense_variant	Exon 30 of 41	1	NM_002474.3	ENSP00000300036.5
MYH11	ENST00000452625.7	c.4055G>C	p.Arg1352Pro	missense_variant	Exon 31 of 43	1	NM_001040113.2	ENSP00000407821.2
NDE1	ENST00000396354.6	c.*478C>G		3_prime_UTR_variant	Exon 9 of 9	1	NM_017668.3	ENSP00000379642.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection Uncertain:1

Sep 04, 2023

All of Us Research Program, National Institutes of Health

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This missense variant replaces arginine with proline at codon 1352 of the MYH11 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 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 not been identified 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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.96
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.81	.;.;.;D
Eigen	Benign	-0.027
Eigen_PC	Benign	0.065
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Uncertain	0.96	D;D;D;D
M_CAP	Uncertain	0.15	D
MetaRNN	Uncertain	0.50	T;T;T;T
MetaSVM	Uncertain	-0.019	T
MutationAssessor	Benign	2.0	.;.;M;M
PrimateAI	Uncertain	0.53	T
PROVEAN	Uncertain	-3.1	D;D;.;D
REVEL	Uncertain	0.58
Sift	Benign	0.090	T;T;.;T
Sift4G	Benign	0.29	T;T;T;T
Polyphen		0.12	.;.;.;B
Vest4		0.56
MutPred		0.63		.;.;Gain of glycosylation at R1345 (P = 0.0523);Gain of glycosylation at R1345 (P = 0.0523);
MVP		0.79
MPC		0.55
ClinPred		0.93	D
GERP RS		3.3
Varity_R		0.48
gMVP		0.69

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-15818586;