1-215728232-C-T
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_206933.4(USH2A):c.11864G>A(p.Trp3955*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000108 in 1,613,968 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_206933.4 stop_gained
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 18 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000125 AC: 19AN: 152090Hom.: 1 Cov.: 32
GnomAD3 exomes AF: 0.0000916 AC: 23AN: 251168Hom.: 0 AF XY: 0.000103 AC XY: 14AN XY: 135774
GnomAD4 exome AF: 0.000107 AC: 156AN: 1461878Hom.: 0 Cov.: 33 AF XY: 0.000122 AC XY: 89AN XY: 727240
GnomAD4 genome AF: 0.000125 AC: 19AN: 152090Hom.: 1 Cov.: 32 AF XY: 0.0000808 AC XY: 6AN XY: 74270
ClinVar
Submissions by phenotype
Usher syndrome type 2A Pathogenic:12
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This variant was classified as: Pathogenic. The following ACMG criteria were applied in classifying this variant: PVS1,PS1,PM2. -
PVS1, PM2, PP3, PP5 -
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NM_206933.2(USH2A):c.11864G>A(W3955*) is classified as pathogenic in the context of USH2A-related disorders. Sources cited for classification include the following: PMID 27460420. Classification of NM_206933.2(USH2A):c.11864G>A(W3955*) is based on the following criteria: The variant causes a premature termination codon that is expected to be targeted by nonsense-mediated mRNA decay and is reported in individuals with the relevant phenotype. Please note: this variant was assessed in the context of healthy population screening. -
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Criteria applied: PVS1,PM3_VSTR; Identified as compund heterozygous with NM_206933.4:c.7524del -
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not provided Pathogenic:7
Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; This variant is associated with the following publications: (PMID: 25262649, 19683999, 28944237, 29293505, 31817543, 25575603, 22135276, 18273898, 18463160, 26927203, 28749477, 29551606, 28945494, 29986705, 28984810, 28559085, 31370859, 15015129, 16963483, 31054281, 31266775, 31456290, 32581362, 32188678, 34426522, 33089500, 31589614, 33576794, 33105617, 33737949, 32037395) -
This sequence change creates a premature translational stop signal (p.Trp3955*) in the USH2A gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in USH2A are known to be pathogenic (PMID: 10729113, 10909849, 20507924, 25649381). This variant is present in population databases (rs111033364, gnomAD 0.02%), including at least one homozygous and/or hemizygous individual. This premature translational stop signal has been observed in individuals with Usher syndrome (PMID: 22135276, 25575603, 29293505). ClinVar contains an entry for this variant (Variation ID: 2357). For these reasons, this variant has been classified as Pathogenic. -
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USH2A: PM3:Very Strong, PVS1, PM2:Supporting -
Retinitis pigmentosa 39 Pathogenic:4
The USH2A c.11864G>A variant was identified in an individual with retinitis pigmentosa with a presumed recessive inheritance pattern. Through a review of available evidence we were able to apply the following criteria: PVS1, PM2, PM3, PP3, PP4. Based on this evidence we have classified this variant as Pathogenic. -
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Retinitis pigmentosa Pathogenic:3
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The p.Trp3955Ter variant in USH2A was identified in an individual with Retinitis pigmentosa, via a collaborative study between the Broad Institute's Center for Mendelian Genomics and the Pierce lab (https://oculargenomics.meei.harvard.edu/labs/pierce-lab/lab-members/). Through a review of available evidence we were able to apply the following criteria: PVS1, PM2, PM3, PP3, PP4. Based on this evidence we have classified this variant as Pathogenic. If you have any questions about the classification please reach out to the Pierce Lab. -
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Retinal dystrophy Pathogenic:2
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USH2A-related disorder Pathogenic:2
The USH2A c.11864G>A variant is predicted to result in premature protein termination (p.Trp3955*). This variant has been reported many times in individuals with Usher syndrome and is noted to be one of the most common pathogenic variants in USH2A, being detected in ~22% of a cohort of patients (Bonnet et al. 2016. PubMed ID: 27460420; Lenarduzzi et al. 2015. PubMed ID: 25575603; Table S4, Stone et al. 2017. PubMed ID: 28559085). This variant is reported in 0.025% of alleles in individuals of European (Non-Finnish) descent in gnomAD. Nonsense variants in USH2A are expected to be pathogenic. This variant is interpreted as pathogenic. -
The c.11864G>A;p.(Trp3955*) variant creates a premature translational stop signal in the USH2A gene. It is expected to result in an absent or disrupted protein product -PVS1. This sequence change has been observed in affected individual(s) and ClinVar contains an entry for this variant (Clinvar ID:2357; PMID: 29293505; 27460420; 26927203; 25649381; 25575603; 25333064; 22135276; 21569298; 20507924) - PS4. The variant is present at low allele frequencies population databases (rs111033364 – gnomAD 0.01249%; ABraOM no frequency - http://abraom.ib.usp.br/) - PM2_supporting. The p.(Trp3955*) was detected in trans with a pathogenic variant (PMID: 29293505; 27460420; 25649381; 25575603; 25333064; 22135276; 21569298) - PM3_strong. The variant co-segregated with disease in multiple affected family members (PMID: 25575603) - PP1. In summary, the currently available evidence indicates that the variant is pathogenic. -
Usher syndrome type 2 Pathogenic:1
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Usher syndrome;C5680250:Rare genetic deafness Pathogenic:1
The p.Trp3955X variant in USH2A has been reported in many probands with Usher sy ndrome, many of whom were homozygous or compound heterozygous (van Wijk 2004, Cr emers 2007, Jacobson 2008, Dreyer 2008, Jaijo 2009, LMM data). This variant has also been identified in 0.025% (32/128914) of European chromosomes, including 1 homozygote, by gnomAD (http://gnomad.broadinstitute.org). Although this variant has been seen in the general population, its frequency is not high enough to ru le out a pathogenic role. This nonsense variant leads to a premature termination codon at position 3955, which is predicted to lead to a truncated or absent pro tein. In summary, this variant meets criteria to be classified as pathogenic for autosomal recessive Usher syndrome. ACMG/AMP Criteria applied: PVS1, PM3_Very S trong, PP4. -
Congenital sensorineural hearing impairment Pathogenic:1
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Usher syndrome type 3A Pathogenic:1
The USH2A c.11864G>A (p.Trp3955Ter) nonsense variant results in the loss of normal protein function through either protein truncation or nonsense-mediated mRNA decay. The c.11864G>A variant is a founder variant in central European and is particularly common in the Slovenian population, where it has been estimated to account for over 80% disease-causing alleles among individuals with Usher syndrome type 2 (PMID: 27460420; PMID: 31817543). Across a selection of the available literature, the c.11864G>A variant is most commonly reported in association with Usher syndrome type 2, but has also been reported in individuals with non-syndromic retinitis pigmentosa (PMID: 15015129; PMID: 2564938; PMID: 27460420; PMID: 31817543). The highest frequency of this allele in the Genome Aggregation Database is 0.000279 in the European (non-Finnish) population, which includes one homozygote (version 3.1.2). Based on the available evidence, the c.11864G>A (p.Trp3955Ter) variant is classified as pathogenic for Usher syndrome type 2. -
Usher syndrome Pathogenic:1
Variant summary: USH2A c.11864G>A (p.Trp3955X) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. The variant allele was found at a frequency of 9.2e-05 in 251168 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in USH2A causing Usher Syndrome (9.2e-05 vs 0.011), allowing no conclusion about variant significance. c.11864G>A has been reported in the literature as biallelic homozygous or compound heterozygous genotypes in multiple individuals affected with Usher Syndrome (example, PMID: 27460420, 28944237). These data indicate that the variant is very likely to be associated with disease. Multiple clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 and all classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -
Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39 Pathogenic:1
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See cases Pathogenic:1
ACMG categories: PVS1,PM2,PM3,PP3,PP5 -
Hearing impairment Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at