rs191613017
Variant summary
Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3
The NM_025114.4(CEP290):c.6452T>G(p.Leu2151Trp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000773 in 1,552,852 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L2151S) has been classified as Likely benign.
Frequency
Consequence
NM_025114.4 missense
Scores
Clinical Significance
Conservation
Publications
- CEP290-related ciliopathyInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- Joubert syndrome 5Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
- Bardet-Biedl syndrome 14Inheritance: AR Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
- Leber congenital amaurosis 10Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
- Leber congenital amaurosisInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Bardet-Biedl syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- Joubert syndrome with oculorenal defectInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- Meckel syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- Senior-Loken syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 1 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_025114.4. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| CEP290 | NM_025114.4 | MANE Select | c.6452T>G | p.Leu2151Trp | missense | Exon 47 of 54 | NP_079390.3 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| CEP290 | ENST00000552810.6 | TSL:1 MANE Select | c.6452T>G | p.Leu2151Trp | missense | Exon 47 of 54 | ENSP00000448012.1 | ||
| CEP290 | ENST00000547691.8 | TSL:1 | c.3734T>G | p.Leu1245Trp | missense | Exon 23 of 28 | ENSP00000446905.3 | ||
| CEP290 | ENST00000675476.1 | c.7313T>G | p.Leu2438Trp | missense | Exon 49 of 56 | ENSP00000502161.1 |
Frequencies
GnomAD3 genomes AF: 0.0000527 AC: 8AN: 151900Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00 AC: 0AN: 166106 AF XY: 0.00
GnomAD4 exome AF: 0.00000286 AC: 4AN: 1400952Hom.: 0 Cov.: 31 AF XY: 0.00000145 AC XY: 1AN XY: 691372 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000527 AC: 8AN: 151900Hom.: 0 Cov.: 32 AF XY: 0.0000270 AC XY: 2AN XY: 74158 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
CEP290-related disorder Uncertain:1
The CEP290 c.6452T>G variant is predicted to result in the amino acid substitution p.Leu2151Trp. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.011% 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.
Meckel-Gruber syndrome;C0431399:Joubert syndrome;C0687120:Nephronophthisis Uncertain:1
This sequence change replaces leucine, which is neutral and non-polar, with tryptophan, which is neutral and slightly polar, at codon 2151 of the CEP290 protein (p.Leu2151Trp). This variant is present in population databases (no rsID available, gnomAD 0.01%). 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: 943767). 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 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.
Senior-Loken syndrome 6;C1857780:Joubert syndrome 5;C1857821:Leber congenital amaurosis 10;C1970161:Meckel syndrome, type 4;C2673874:Bardet-Biedl syndrome 14 Uncertain:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at