NM_002474.3:c.3651+7_3651+11delCTTTT

Variant names:

• chr16-15732552-AAAAAG-A
• rs369806813
• NM_002474.3:c.3651+7_3651+11delCTTTT

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_Strong BS1 BS2

The NM_002474.3(MYH11):​c.3651+7_3651+11delCTTTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00198 in 1,614,204 control chromosomes in the GnomAD database, including 56 homozygotes. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.011 (27 hom., cov: 32)
  • Exomes 𝑓: 0.0011 (29 hom.)
• Consequence: MYH11 NM_002474.3 splice_region, intron
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: 1.85

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]

ENSG00000263335 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -16 ACMG points.

• BP6: Variant 16-15732552-AAAAAG-A is Benign according to our data. Variant chr16-15732552-AAAAAG-A is described in ClinVar as [Likely_benign]. Clinvar id is 465727.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0107 (1626/152338) while in subpopulation AFR AF= 0.037 (1539/41566). AF 95% confidence interval is 0.0355. There are 27 homozygotes in gnomad4. There are 791 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 27 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH11	NM_002474.3	c.3651+7_3651+11delCTTTT		splice_region_variant, intron_variant	Intron 27 of 40	ENST00000300036.6	NP_002465.1
MYH11	NM_001040113.2	c.3672+7_3672+11delCTTTT		splice_region_variant, intron_variant	Intron 28 of 42	ENST00000452625.7	NP_001035202.1
MYH11	NM_001040114.2	c.3672+7_3672+11delCTTTT		splice_region_variant, intron_variant	Intron 28 of 41		NP_001035203.1
MYH11	NM_022844.3	c.3651+7_3651+11delCTTTT		splice_region_variant, intron_variant	Intron 27 of 41		NP_074035.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYH11	ENST00000300036.6	c.3651+7_3651+11delCTTTT		splice_region_variant, intron_variant	Intron 27 of 40	1	NM_002474.3	ENSP00000300036.5
MYH11	ENST00000452625.7	c.3672+7_3672+11delCTTTT		splice_region_variant, intron_variant	Intron 28 of 42	1	NM_001040113.2	ENSP00000407821.2

Frequencies

GnomAD3 genomes AF: 0.0106 AC: 1619 AN: 152220 Hom.: 26 Cov.: 32

Gnomad AFR AF: 0.0370

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00406

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0158

Gnomad NFE AF: 0.000118

Gnomad OTH AF: 0.00573

GnomAD4 exome AF: 0.00108 AC: 1574 AN: 1461866 Hom.: 29 AF XY: 0.000960 AC XY: 698 AN XY: 727230

Gnomad4 AFR exome AF: 0.0387

Gnomad4 AMR exome AF: 0.00152

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000128

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000279

Gnomad4 OTH exome AF: 0.00255

GnomAD4 genome AF: 0.0107 AC: 1626 AN: 152338 Hom.: 27 Cov.: 32 AF XY: 0.0106 AC XY: 791 AN XY: 74496

Gnomad4 AFR AF: 0.0370

Gnomad4 AMR AF: 0.00405

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000118

Gnomad4 OTH AF: 0.00567

Alfa AF: 0.000223 Hom.: 0

Asia WGS AF: 0.00346 AC: 12 AN: 3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Mar 03, 2015

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Aug 22, 2017

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

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: The MYH11 c.3672+7_3672+11delCTTTT variant involves the deletion of a string of four intronic nucleotides. One in silico tool predicts a benign outcome for this variant. 4/5 splice prediction tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. This variant was found in 269/121398 control chromosomes (7 homozygotes) at a frequency of 0.0022159, which is approximately 1773 times the estimated maximal expected allele frequency of a pathogenic MYH11 variant (0.0000013), suggesting this variant is likely a benign polymorphism. The variant of interest has not, to our knowledge, been reported in affected individuals via publications and/or reputable databases/clinical diagnostic laboratories; nor evaluated for functional impact by in vivo/vitro studies. Taken together, this variant is classified as benign. -

Aortic aneurysm, familial thoracic 4 Benign:1

Nov 04, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

MYH11-related disorder Benign:1

Feb 19, 2019

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs369806813; hg19: chr16-15826409;