rs377257254
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM1PM5PP3_ModeratePP5_Very_Strong
The NM_014249.4(NR2E3):c.767C>A(p.Ala256Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000158 in 1,611,394 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 9/14 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A256V) has been classified as Pathogenic.
Frequency
Consequence
NM_014249.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
NR2E3 | ENST00000617575.5 | c.767C>A | p.Ala256Glu | missense_variant | Exon 6 of 8 | 1 | NM_014249.4 | ENSP00000482504.1 | ||
NR2E3 | ENST00000621098.1 | c.767C>A | p.Ala256Glu | missense_variant | Exon 6 of 7 | 1 | ENSP00000479962.1 | |||
NR2E3 | ENST00000621736.4 | c.503C>A | p.Ala168Glu | missense_variant | Exon 8 of 10 | 2 | ENSP00000479254.1 |
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152202Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000371 AC: 9AN: 242284Hom.: 0 AF XY: 0.0000380 AC XY: 5AN XY: 131520
GnomAD4 exome AF: 0.000171 AC: 249AN: 1459192Hom.: 0 Cov.: 32 AF XY: 0.000156 AC XY: 113AN XY: 725564
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152202Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74362
ClinVar
Submissions by phenotype
not provided Pathogenic:2
Identified in patients with features of an NR2E3-related retinal dystrophy in published literature (PMID: 25079116, 28041643, 15459973, 12963616); Published functional studies demonstrate impairment of protein localization, binding, and function (PMID: 19898638, 28300834); 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: 19718767, 25703721, 25097241, 28300834, 15453866, 28041643, 15459973, 29343940, 12963616, 24425859, 16225923, 32679203, 31589614, Vafaeie[preprint], 38219857, 37510230, 32037395, 36460718, 31964843, 33513943, 25079116, 34906470, 19898638) -
This sequence change replaces alanine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 256 of the NR2E3 protein (p.Ala256Glu). This variant is present in population databases (rs377257254, gnomAD 0.009%). This missense change has been observed in individuals with autosomal recessive NR2E3-related conditions (PMID: 12963616, 25079116). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 438229). 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 NR2E3 protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects NR2E3 function (PMID: 19898638, 25703721, 28300834). For these reasons, this variant has been classified as Pathogenic. -
Retinal dystrophy Pathogenic:2
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Enhanced S-cone syndrome Pathogenic:1
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Retinitis pigmentosa 37 Pathogenic:1
The NR2E3 c.767C>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: PS3, PM2. Based on this evidence we have classified this variant as Likely Pathogenic. -
Goldmann-Favre syndrome Pathogenic:1
The p.Ala256Glu variant in NR2E3 has been reported in the compound heterozygous state 6 individuals with retinal disease (Sharon 2003 PMID:12963616, Hull 2014 PMID:25079116, Carss 2017 PMID: 28041643, Bryant 2018 PMID: 29343940). It has also been identified in 0.009% (3/34014) of Latino chromosomes by gnomAD (http://gnomad.broadinstitute.org) and is reported in ClinVar (Variation ID:438229). Computational prediction tools and conservation analyses suggest that this variant may impact the protein, though this information is not predictive enough to determine pathogenicity. In vitro functional studies support an impact on protein function (Kanda 2009 PMID: 19898638, von Alpen 2015 PMID: 25703721). In summary, this variant meets criteria to be classified as pathogenic for autosomal recessive Enhanced S-Cone syndrome. ACMG/AMP Criteria applied: PM3_VeryStrong, PM2, PS3_Moderate, PP3. -
Retinitis pigmentosa Pathogenic:1
The p.Ala256Glu variant in NR2E3 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: PS3, PM2. Based on this evidence we have classified this variant as Likely Pathogenic. If you have any questions about the classification please reach out to the Pierce Lab. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at