16-15745246-G-T

Variant names:

• chr16-15745246-G-T
• rs148682361
• NM_002474.3:c.2412-9C>A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_002474.3(MYH11):​c.2412-9C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00235 in 1,610,528 control chromosomes in the GnomAD database, including 71 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.012 (38 hom., cov: 32)
  • Exomes 𝑓: 0.0013 (33 hom.)
• Consequence: MYH11 NM_002474.3 intron
• Scores: Splicing: ADA: 0.0001252
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11
• Conservation: PhyloP100: -0.414

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]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BP6: Variant 16-15745246-G-T is Benign according to our data. Variant chr16-15745246-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 36617.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-15745246-G-T is described in Lovd as [Benign].
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0123 (1874/152190) while in subpopulation AFR AF= 0.0428 (1779/41524). AF 95% confidence interval is 0.0412. There are 38 homozygotes in gnomad4. There are 879 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 38 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH11	NM_002474.3	c.2412-9C>A		intron_variant	Intron 19 of 40	ENST00000300036.6	NP_002465.1
MYH11	NM_001040113.2	c.2433-9C>A		intron_variant	Intron 20 of 42	ENST00000452625.7	NP_001035202.1
MYH11	NM_001040114.2	c.2433-9C>A		intron_variant	Intron 20 of 41		NP_001035203.1
MYH11	NM_022844.3	c.2412-9C>A		intron_variant	Intron 19 of 41		NP_074035.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYH11	ENST00000300036.6	c.2412-9C>A		intron_variant	Intron 19 of 40	1	NM_002474.3	ENSP00000300036.5
MYH11	ENST00000452625.7	c.2433-9C>A		intron_variant	Intron 20 of 42	1	NM_001040113.2	ENSP00000407821.2

Frequencies

GnomAD3 genomes AF: 0.0123 AC: 1872 AN: 152070 Hom.: 38 Cov.: 32

Gnomad AFR AF: 0.0429

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00328

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00327

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.0000882

Gnomad OTH AF: 0.0100

GnomAD3 exomes AF: 0.00337 AC: 844 AN: 250446 Hom.: 14 AF XY: 0.00246 AC XY: 333 AN XY: 135412

Gnomad AFR exome AF: 0.0437

Gnomad AMR exome AF: 0.00188

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00332

Gnomad SAS exome AF: 0.0000654

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.000490

GnomAD4 exome AF: 0.00131 AC: 1904 AN: 1458338 Hom.: 33 Cov.: 31 AF XY: 0.00108 AC XY: 781 AN XY: 725652

Gnomad4 AFR exome AF: 0.0439

Gnomad4 AMR exome AF: 0.00197

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00343

Gnomad4 SAS exome AF: 0.000139

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000316

Gnomad4 OTH exome AF: 0.00262

GnomAD4 genome AF: 0.0123 AC: 1874 AN: 152190 Hom.: 38 Cov.: 32 AF XY: 0.0118 AC XY: 879 AN XY: 74412

Gnomad4 AFR AF: 0.0428

Gnomad4 AMR AF: 0.00327

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00328

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000882

Gnomad4 OTH AF: 0.00994

Alfa AF: 0.000672 Hom.: 0

Bravo AF: 0.0137

Asia WGS AF: 0.00231 AC: 8 AN: 3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:11

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:4

-

Genome Diagnostics Laboratory, Amsterdam University Medical Center

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

-

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

-

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Apr 15, 2013

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Familial thoracic aortic aneurysm and aortic dissection Benign:2

Apr 02, 2018

Color Diagnostics, LLC DBA Color Health

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Mar 21, 2023

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Aortic aneurysm, familial thoracic 4 Benign:2

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Familial aortopathy Benign:1

Sep 17, 2014

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not provided Benign:1

Oct 21, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Connective tissue disorder Benign:1

Nov 01, 2016

Center for Human Genetics, Inc, Center for Human Genetics, Inc

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	1.2
DANN	Benign	0.84

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00013
dbscSNV1_RF	Benign	0.010
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

Other links and lift over

dbSNP: rs148682361; hg19: chr16-15839103;