chr16-15741511-CCT-C

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_002474.3(MYH11):​c.2809_2810delAG​(p.Arg937fs) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,214 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

MYH11
NM_002474.3 frameshift

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:1

Conservation

PhyloP100: 7.85
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 11 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 16-15741511-CCT-C is Pathogenic according to our data. Variant chr16-15741511-CCT-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 211547.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Pathogenic=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYH11NM_002474.3 linkuse as main transcriptc.2809_2810delAG p.Arg937fs frameshift_variant 22/41 ENST00000300036.6 NP_002465.1 P35749-1A0A024QZJ4
MYH11NM_001040113.2 linkuse as main transcriptc.2830_2831delAG p.Arg944fs frameshift_variant 23/43 ENST00000452625.7 NP_001035202.1 P35749-3
MYH11NM_001040114.2 linkuse as main transcriptc.2830_2831delAG p.Arg944fs frameshift_variant 23/42 NP_001035203.1 P35749-2
MYH11NM_022844.3 linkuse as main transcriptc.2809_2810delAG p.Arg937fs frameshift_variant 22/42 NP_074035.1 P35749-4A0A024QZJ6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYH11ENST00000300036.6 linkuse as main transcriptc.2809_2810delAG p.Arg937fs frameshift_variant 22/411 NM_002474.3 ENSP00000300036.5 P35749-1
MYH11ENST00000452625.7 linkuse as main transcriptc.2830_2831delAG p.Arg944fs frameshift_variant 23/431 NM_001040113.2 ENSP00000407821.2 P35749-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000403
AC:
1
AN:
248266
Hom.:
0
AF XY:
0.00000744
AC XY:
1
AN XY:
134462
show subpopulations
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 SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.86e-7
AC:
1
AN:
1457214
Hom.:
0
AF XY:
0.00000138
AC XY:
1
AN XY:
725126
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:2Uncertain:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Megacystis-microcolon-intestinal hypoperistalsis syndrome 2 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJun 01, 2021- -
Aortic aneurysm, familial thoracic 4 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJun 22, 2015- -
Familial thoracic aortic aneurysm and aortic dissection Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAll of Us Research Program, National Institutes of HealthMay 09, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs749497185; hg19: chr16-15835368; API