chr11-77156751-C-G
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Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_000260.4(MYO7A):āc.562C>Gā(p.Gln188Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000328 in 1,614,014 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: š 0.000033 ( 0 hom., cov: 33)
Exomes š: 0.000033 ( 0 hom. )
Consequence
MYO7A
NM_000260.4 missense
NM_000260.4 missense
Scores
8
10
1
Clinical Significance
Conservation
PhyloP100: 5.99
Genes affected
MYO7A (HGNC:7606): (myosin VIIA) This gene is a member of the myosin gene family. Myosins are mechanochemical proteins characterized by the presence of a motor domain, an actin-binding domain, a neck domain that interacts with other proteins, and a tail domain that serves as an anchor. This gene encodes an unconventional myosin with a very short tail. Defects in this gene are associated with the mouse shaker-1 phenotype and the human Usher syndrome 1B which are characterized by deafness, reduced vestibular function, and (in human) retinal degeneration. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 3 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.749
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MYO7A | NM_000260.4 | c.562C>G | p.Gln188Glu | missense_variant | 6/49 | ENST00000409709.9 | NP_000251.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MYO7A | ENST00000409709.9 | c.562C>G | p.Gln188Glu | missense_variant | 6/49 | 1 | NM_000260.4 | ENSP00000386331 | ||
| MYO7A | ENST00000458637.6 | c.562C>G | p.Gln188Glu | missense_variant | 6/49 | 1 | ENSP00000392185 | P1 | ||
| MYO7A | ENST00000409619.6 | c.529C>G | p.Gln177Glu | missense_variant | 7/50 | 1 | ENSP00000386635 |
Frequencies
GnomAD3 genomes 0.0000329 AC: 5AN: 152194Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000361 AC: 9AN: 249250Hom.: 0 AF XY: 0.0000222 AC XY: 3AN XY: 135222
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GnomAD4 exome AF: 0.0000328 AC: 48AN: 1461702Hom.: 0 Cov.: 32 AF XY: 0.0000344 AC XY: 25AN XY: 727138
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GnomAD4 genome 0.0000328 AC: 5AN: 152312Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74478
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:6Benign:1
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
not provided Uncertain:1Benign:1
| Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Apr 26, 2024 | Reported in the heterozygous state in unrelated patients with Usher syndrome and/or hearing loss in published literature; of note, clinical information was limited for both patients (PMID: 29625443, 30896630); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 23226338, 29625443, 26338283, 30896630) - |
| Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Dec 19, 2023 | - - |
not specified Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Jul 19, 2016 | The p.Gln188Glu variant in MYO7A has not been previously reported in individuals with hearing loss or Usher syndrome, but it has been identified in 0.1% (6/8624 ) of East Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://ex ac.broadinstitute.org; dbSNP rs572959359); however, its frequency is not high en ough to rule out a pathogenic role. Computational prediction tools and conservat ion analyses suggest that this variant may impact the protein, though this infor mation is not predictive enough to determine pathogenicity. In summary, the clin ical significance of the p.Gln188Glu variant is uncertain. - |
Autosomal dominant nonsyndromic hearing loss 11 Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Autosomal recessive nonsyndromic hearing loss 2 Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Usher syndrome type 1B Uncertain:1
| Uncertain significance, no assertion criteria provided | clinical testing | Natera, Inc. | Feb 07, 2020 | - - |
Usher syndrome type 1 Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Pathogenic
D;T;.;.
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
LIST_S2
Pathogenic
D;D;D;D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D;D
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M;.;M;.
MutationTaster
Benign
D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Uncertain
N;.;N;N
REVEL
Pathogenic
Sift
Uncertain
D;.;D;D
Sift4G
Uncertain
D;D;D;D
Polyphen
D;.;.;.
Vest4
MutPred
Gain of relative solvent accessibility (P = 0.2629);Gain of relative solvent accessibility (P = 0.2629);Gain of relative solvent accessibility (P = 0.2629);.;
MVP
MPC
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
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Calibrated prediction
Score
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at