rs111033192
Variant summary
Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5
The NM_000260.4(MYO7A):c.5824G>A(p.Gly1942Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000048 in 1,459,262 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_000260.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 5 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
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MYO7A | ENST00000409709.9 | c.5824G>A | p.Gly1942Arg | missense_variant | Exon 42 of 49 | 1 | NM_000260.4 | ENSP00000386331.3 | ||
MYO7A | ENST00000458637.6 | c.5710G>A | p.Gly1904Arg | missense_variant | Exon 42 of 49 | 1 | ENSP00000392185.2 | |||
MYO7A | ENST00000409619.6 | c.5677G>A | p.Gly1893Arg | missense_variant | Exon 43 of 50 | 1 | ENSP00000386635.2 | |||
MYO7A | ENST00000458169.2 | c.3250G>A | p.Gly1084Arg | missense_variant | Exon 22 of 29 | 1 | ENSP00000417017.2 | |||
MYO7A | ENST00000670577.1 | n.*422G>A | non_coding_transcript_exon_variant | Exon 25 of 32 | ENSP00000499323.1 | |||||
MYO7A | ENST00000670577 | n.*422G>A | 3_prime_UTR_variant | Exon 25 of 30 | ENSP00000499323.1 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 exomes AF: 0.00000410 AC: 1AN: 244052Hom.: 0 AF XY: 0.00000756 AC XY: 1AN XY: 132314
GnomAD4 exome AF: 0.00000480 AC: 7AN: 1459262Hom.: 0 Cov.: 33 AF XY: 0.00000827 AC XY: 6AN XY: 725548
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
not provided Pathogenic:2Uncertain:2
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This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 1942 of the MYO7A protein (p.Gly1942Arg). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This missense change has been observed in individuals with autosomal recessive deafness and/or autosomal recessive Usher syndrome (PMID: 21117948, 27460420, 32853555). ClinVar contains an entry for this variant (Variation ID: 43299). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt MYO7A protein function with a positive predictive value of 95%. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -
Not observed at a significant frequency in large population cohorts (gnomAD); 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: 25525159, 27460420, 30245029, 21117948, 32853555, 33671976) -
Usher syndrome Pathogenic:1
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Usher syndrome type 1;C1832475:Autosomal dominant nonsyndromic hearing loss 11;C1838701:Autosomal recessive nonsyndromic hearing loss 2 Pathogenic:1
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not specified Uncertain:1
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Usher syndrome type 1;C1838701:Autosomal recessive nonsyndromic hearing loss 2 Uncertain:1
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Usher syndrome type 1B Uncertain:1
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MYO7A-related disorder Uncertain:1
MYO7A c.5824G>A (p.G1942R) missense variant has been reported in one family with autosomal recessive nonsyndromic deafness (PMID: 21117948). This variant has also been reported in the compound heterozygous state in one individual with Usher syndrome (PMID: 27460420). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at