12-88089274-G-T
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_025114.4(CEP290):c.3787C>A(p.Leu1263Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,613,876 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. L1263L) has been classified as Likely benign.
Frequency
Consequence
NM_025114.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CEP290 | NM_025114.4 | c.3787C>A | p.Leu1263Met | missense_variant | 31/54 | ENST00000552810.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CEP290 | ENST00000552810.6 | c.3787C>A | p.Leu1263Met | missense_variant | 31/54 | 1 | NM_025114.4 | P4 |
Frequencies
GnomAD3 genomes AF: 0.000125 AC: 19AN: 152194Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000803 AC: 2AN: 249192Hom.: 0 AF XY: 0.00000740 AC XY: 1AN XY: 135196
GnomAD4 exome AF: 0.0000226 AC: 33AN: 1461682Hom.: 0 Cov.: 33 AF XY: 0.0000220 AC XY: 16AN XY: 727126
GnomAD4 genome AF: 0.000125 AC: 19AN: 152194Hom.: 0 Cov.: 32 AF XY: 0.000161 AC XY: 12AN XY: 74356
ClinVar
Submissions by phenotype
not provided Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Jul 03, 2018 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Nov 21, 2019 | In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
CEP290-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Nov 30, 2023 | The CEP290 c.3787C>A variant is predicted to result in the amino acid substitution p.Leu1263Met. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.037% of alleles in individuals of African descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. - |
Leber congenital amaurosis Uncertain:1
Uncertain significance, no assertion criteria provided | clinical testing | Natera, Inc. | Apr 17, 2020 | - - |
Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis;C0687120:Nephronophthisis Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Nov 27, 2023 | This sequence change replaces leucine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 1263 of the CEP290 protein (p.Leu1263Met). This variant is present in population databases (rs370395204, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with CEP290-related conditions. ClinVar contains an entry for this variant (Variation ID: 530913). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt CEP290 protein function with a positive predictive value of 80%. 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. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at