rs587783023
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM1
The NM_206933.4(USH2A):c.2414G>C(p.Gly805Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000471 in 1,613,880 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. G805G) has been classified as Likely benign.
Frequency
Consequence
NM_206933.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Our verdict: Uncertain_significance. The variant received 2 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
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USH2A | ENST00000307340.8 | c.2414G>C | p.Gly805Ala | missense_variant | Exon 13 of 72 | 1 | NM_206933.4 | ENSP00000305941.3 | ||
USH2A | ENST00000366942.3 | c.2414G>C | p.Gly805Ala | missense_variant | Exon 13 of 21 | 1 | ENSP00000355909.3 | |||
USH2A | ENST00000674083.1 | c.2414G>C | p.Gly805Ala | missense_variant | Exon 13 of 73 | ENSP00000501296.1 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152098Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000917 AC: 23AN: 250734 AF XY: 0.0000959 show subpopulations
GnomAD4 exome AF: 0.0000493 AC: 72AN: 1461782Hom.: 0 Cov.: 31 AF XY: 0.0000468 AC XY: 34AN XY: 727188 show subpopulations
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152098Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74292 show subpopulations
ClinVar
Submissions by phenotype
Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39 Uncertain:2
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
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not provided Uncertain:2
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: 27057829, 33691693, 25445212) -
This sequence change replaces glycine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 805 of the USH2A protein (p.Gly805Ala). This variant is present in population databases (rs587783023, gnomAD 0.1%). This missense change has been observed in individual(s) with USH2A-related conditions (PMID: 25445212, 27057829, 33691693). ClinVar contains an entry for this variant (Variation ID: 156393). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Usher syndrome type 2A Uncertain:2
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This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
Leber congenital amaurosis Uncertain:1
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Retinitis pigmentosa 39 Uncertain:1
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Retinal dystrophy Uncertain:1
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Retinitis pigmentosa Uncertain:1
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at