rs775557680
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PP3_StrongPP5_Very_Strong
The NM_000539.3(RHO):c.541G>A(p.Glu181Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_000539.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome Cov.: 33
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
not provided Pathogenic:5
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This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 181 of the RHO protein (p.Glu181Lys). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with autosomal dominant retinitis pigmentosa (PMID: 1833777, 29068140). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 196282). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt RHO protein function with a positive predictive value of 95%. Experimental studies have shown that this missense change affects RHO function (PMID: 8253795, 19913029). For these reasons, this variant has been classified as Pathogenic. -
RHO: PP1:Strong, PM1, PM2, PS4:Moderate, PS3:Supporting -
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Retinitis pigmentosa 4 Pathogenic:4
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The variant is not observed in the gnomAD v2.1.1 dataset. Predicted Consequence/Location: The variant is located in a mutational hot spot and/or well-established functional domain in which established pathogenic variants have been reported. Missense changes are a common disease-causing mechanism. In silico tool predictions suggest damaging effect of the variant on gene or gene product [REVEL: 0.84 (>=0.6, sensitivity 0.68 and specificity 0.92)]. Same nucleotide change resulting in same amino acid change has been previously reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV000196282 /PMID: 1833777). Therefore, this variant is classified as Pathogenic according to the recommendation of ACMG/AMP guideline. -
Criteria applied: PS3,PS4,PM1,PM2,PP3 -
Retinal dystrophy Pathogenic:3
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Retinitis pigmentosa Pathogenic:3
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RHO-related disorder Pathogenic:1
The RHO c.541G>A variant is predicted to result in the amino acid substitution p.Glu181Lys. This variant has been reported many times as causative for autosomal dominant retinitis pigmentosa (see for examples: Dryja et al. 1991. PubMed ID: 1833777; Sohocki et al. 2001. PubMed ID: 11139241; Eisenberger et al. 2013. PubMed ID: 24265693: Table S4, Panneman et al. 2023. PubMed ID: 36819107). This variant has not been reported in the large population database gnomAD, indicating this variant is rare. This variant has been classified as pathogenic by multiple independent submitters to the ClinVar database (https://www.ncbi.nlm.nih.gov/clinvar/variation/196282). Given the evidence, we interpret this variant as pathogenic for autosomal dominant disease. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at