rs754768875
Variant summary
Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_206933.4(USH2A):c.4957C>T(p.Arg1653*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,612,652 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 Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R1653R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_206933.4 stop_gained
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Pathogenic. The variant received 16 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| USH2A | NM_206933.4 | c.4957C>T | p.Arg1653* | stop_gained | Exon 24 of 72 | ENST00000307340.8 | NP_996816.3 | |
| USH2A-AS2 | NR_125992.1 | n.293G>A | non_coding_transcript_exon_variant | Exon 3 of 3 | ||||
| USH2A-AS2 | NR_125993.1 | n.164G>A | non_coding_transcript_exon_variant | Exon 2 of 2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| USH2A | ENST00000307340.8 | c.4957C>T | p.Arg1653* | stop_gained | Exon 24 of 72 | 1 | NM_206933.4 | ENSP00000305941.3 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 151992Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000160 AC: 4AN: 250638 AF XY: 0.0000221 show subpopulations
GnomAD4 exome AF: 0.0000103 AC: 15AN: 1460660Hom.: 0 Cov.: 30 AF XY: 0.00000963 AC XY: 7AN XY: 726648 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000263 AC: 4AN: 151992Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74240 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Usher syndrome type 2A Pathogenic:4
This submission and the accompanying classification are no longer maintained by the submitter.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.
not provided Pathogenic:3
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: 25525159, 28805479, 18273898, 27957503, 28512305, 32675063, 33576794, 33090715, 34781295, 33691693, 33124170, 30358468, 26927203, 30718709, 22334370, 24944099)
This sequence change creates a premature translational stop signal (p.Arg1653*) 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 (rs754768875, gnomAD 0.02%). This premature translational stop signal has been observed in individual(s) with Usher syndrome and retinitis pigmentosa (PMID: 18273898, 22334370, 27957503, 28512305). ClinVar contains an entry for this variant (Variation ID: 488733). For these reasons, this variant has been classified as Pathogenic.
Retinal dystrophy Pathogenic:2
Leber congenital amaurosis Pathogenic:1
Retinitis pigmentosa 39 Pathogenic:1
Retinitis pigmentosa Pathogenic:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at