16-15726994-C-G

Variant names:

• chr16-15726994-C-G
• rs558332944
• NM_002474.3:c.3712G>C

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS1

The NM_002474.3(MYH11):​c.3712G>C​(p.Gly1238Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,612,014 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G1238W) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000018 (1 hom.)
• Consequence: MYH11 NM_002474.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 0.594
• Publications: 2 publications found

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]

NDE1 Gene-Disease associations (from GenCC):

• lissencephaly 4

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Laboratory for Molecular Medicine, Ambry Genetics
• microcephaly with lissencephaly and/or hydranencephaly

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• 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

ENSG00000263335 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.0809755).
• BS1: Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.0000263 (4/152048) while in subpopulation SAS AF = 0.00083 (4/4818). AF 95% confidence interval is 0.000283. There are 0 homozygotes in GnomAd4. There are 3 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002474.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH11	NM_002474.3	MANE Select	c.3712G>C	p.Gly1238Arg	missense	Exon 28 of 41	NP_002465.1	P35749-1
	MYH11	NM_001040113.2	MANE Plus Clinical	c.3733G>C	p.Gly1245Arg	missense	Exon 29 of 43	NP_001035202.1	P35749-3
	MYH11	NM_001040114.2		c.3733G>C	p.Gly1245Arg	missense	Exon 29 of 42	NP_001035203.1	P35749-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH11	ENST00000300036.6	TSL:1 MANE Select	c.3712G>C	p.Gly1238Arg	missense	Exon 28 of 41	ENSP00000300036.5	P35749-1
	MYH11	ENST00000452625.7	TSL:1 MANE Plus Clinical	c.3733G>C	p.Gly1245Arg	missense	Exon 29 of 43	ENSP00000407821.2	P35749-3
	MYH11	ENST00000396324.7	TSL:1	c.3733G>C	p.Gly1245Arg	missense	Exon 29 of 42	ENSP00000379616.3	P35749-2

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 151930 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000415

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000119 AC: 3 AN: 251198 AF XY: 0.0000147

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000185 AC: 27 AN: 1459966 Hom.: 1 Cov.: 30 AF XY: 0.0000207 AC XY: 15 AN XY: 726232

African (AFR) AF: 0.00 AC: 0 AN: 33456

American (AMR) AF: 0.00 AC: 0 AN: 44582

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26108

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39642

South Asian (SAS) AF: 0.000209 AC: 18 AN: 86032

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53110

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000720 AC: 8 AN: 1110936

Other (OTH) AF: 0.00 AC: 0 AN: 60334

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152048 Hom.: 0 Cov.: 31 AF XY: 0.0000404 AC XY: 3 AN XY: 74320

African (AFR) AF: 0.00 AC: 0 AN: 41482

American (AMR) AF: 0.00 AC: 0 AN: 15248

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5148

South Asian (SAS) AF: 0.000830 AC: 4 AN: 4818

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10578

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67996

Other (OTH) AF: 0.00 AC: 0 AN: 2100

ExAC AF: 0.0000247 AC: 3

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	Familial thoracic aortic aneurysm and aortic dissection (2)
-	1	-	Aortic aneurysm, familial thoracic 4 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.31
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.34
CADD	Benign	13
DANN	Benign	0.80
DEOGEN2	Benign	0.35	T
Eigen	Benign	-0.74
Eigen_PC	Benign	-0.77
FATHMM_MKL	Benign	0.25	N
LIST_S2	Uncertain	0.97	D
M_CAP	Uncertain	0.094	D
MetaRNN	Benign	0.081	T
MetaSVM	Benign	-0.56	T
MutationAssessor	Benign	0.81	L
PhyloP100		0.59
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-0.76	N
REVEL	Benign	0.15
Sift	Benign	0.18	T
Sift4G	Benign	0.13	T
Polyphen		0.032	B
Vest4		0.29
MutPred		0.54		Gain of MoRF binding (P = 0.0116)
MVP		0.64
MPC		0.25
ClinPred		0.060	T
GERP RS		1.1
Varity_R		0.092
gMVP		0.16
Mutation Taster		=98/2	polymorphism

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

Other links and lift over

dbSNP: rs558332944; hg19: chr16-15820851;