rs146413074
Variant summary
Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong
The NM_001142800.2(EYS):c.3695T>C(p.Ile1232Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000069 in 1,549,614 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I1232F) has been classified as Uncertain significance.
Frequency
Consequence
NM_001142800.2 missense
Scores
Clinical Significance
Conservation
Publications
- EYS-related retinopathyInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- retinitis pigmentosaInheritance: AR, AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
- retinitis pigmentosa 25Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
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ACMG classification
Our verdict: Likely_benign. The variant received -4 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| EYS | ENST00000503581.6 | c.3695T>C | p.Ile1232Thr | missense_variant | Exon 25 of 43 | 5 | NM_001142800.2 | ENSP00000424243.1 | ||
| EYS | ENST00000370621.7 | c.3695T>C | p.Ile1232Thr | missense_variant | Exon 25 of 44 | 1 | ENSP00000359655.3 | |||
| EYS | ENST00000330816.5 | n.316T>C | non_coding_transcript_exon_variant | Exon 4 of 4 | 3 |
Frequencies
GnomAD3 genomes AF: 0.000158 AC: 24AN: 152114Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000772 AC: 12AN: 155446 AF XY: 0.0000728 show subpopulations
GnomAD4 exome AF: 0.0000594 AC: 83AN: 1397382Hom.: 0 Cov.: 30 AF XY: 0.0000638 AC XY: 44AN XY: 689228 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000158 AC: 24AN: 152232Hom.: 0 Cov.: 32 AF XY: 0.000107 AC XY: 8AN XY: 74440 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Retinitis pigmentosa 25 Uncertain:3
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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 specified Uncertain:1
Variant summary: EYS c.3695T>C (p.Ile1232Thr) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 7.7e-05 in 155446 control chromosomes (gnomAD). This frequency is not significantly higher than estimated for a pathogenic variant in EYS causing Retinitis Pigmentosa (7.7e-05 vs 0.0034), allowing no conclusion about variant significance. c.3695T>C has been reported in the literature in individuals affected with Retinitis Pigmentosa (examples: Gonzlez-del Pozo_2011, Messchaert_2018, Xu_2021). These data do not allow any conclusion about variant significance. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 22164218, 29159838, 34178978). ClinVar contains an entry for this variant (Variation ID: 551910). Based on the evidence outlined above, the variant was classified as uncertain significance. -
not provided Uncertain:1
This sequence change replaces isoleucine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 1232 of the EYS protein (p.Ile1232Thr). This variant is present in population databases (rs146413074, gnomAD 0.04%). This missense change has been observed in individual(s) with retinitis pigmentosa (PMID: 22164218, 29159838). ClinVar contains an entry for this variant (Variation ID: 551910). 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 not expected to disrupt EYS protein function with a negative predictive value of 80%. This variant disrupts the p.Ile232 amino acid residue in EYS. Other variant(s) that disrupt this residue have been observed in individuals with EYS-related conditions (PMID: 20333770), which suggests that this may be a clinically significant amino acid residue. 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. -
Retinal dystrophy Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at