rs386834159
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_025114.4(CEP290):c.5850del(p.Phe1950LeufsTer15) variant causes a frameshift change. The variant allele was found at a frequency of 0.0000299 in 1,436,570 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.000030 ( 0 hom. )
Consequence
CEP290
NM_025114.4 frameshift
NM_025114.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 4.23
Genes affected
CEP290 (HGNC:29021): (centrosomal protein 290) This gene encodes a protein with 13 putative coiled-coil domains, a region with homology to SMC chromosome segregation ATPases, six KID motifs, three tropomyosin homology domains and an ATP/GTP binding site motif A. The protein is localized to the centrosome and cilia and has sites for N-glycosylation, tyrosine sulfation, phosphorylation, N-myristoylation, and amidation. Mutations in this gene have been associated with Joubert syndrome and nephronophthisis and the presence of antibodies against this protein is associated with several forms of cancer. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 18 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 12-88071785-CA-C is Pathogenic according to our data. Variant chr12-88071785-CA-C is described in ClinVar as [Pathogenic]. Clinvar id is 56740.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-88071785-CA-C is described in Lovd as [Pathogenic]. Variant chr12-88071785-CA-C is described in Lovd as [Likely_pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CEP290 | NM_025114.4 | c.5850del | p.Phe1950LeufsTer15 | frameshift_variant | 42/54 | ENST00000552810.6 | |
LOC124902977 | XR_007063393.1 | n.887-10523del | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CEP290 | ENST00000552810.6 | c.5850del | p.Phe1950LeufsTer15 | frameshift_variant | 42/54 | 1 | NM_025114.4 | P4 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 0.0000299 AC: 43AN: 1436570Hom.: 0 Cov.: 30 AF XY: 0.0000280 AC XY: 20AN XY: 713434
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20
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GnomAD4 genome ? Cov.: 32
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Bravo
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ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Meckel syndrome, type 4 Pathogenic:2
Likely pathogenic, no assertion criteria provided | literature only | Juha Muilu Group; Institute for Molecular Medicine Finland (FIMM) | - | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | May 17, 2022 | Variant summary: CEP290 c.5850delT (p.Phe1950LeufsX15) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. Truncations downstream of this position have been classified as pathogenic in ClinVar (e.g. c.7048C>T [p.Gln2350Ter]; c.6798G>A [p.Trp2266Ter]). The variant allele was found at a frequency of 1.8e-05 in 222022 control chromosomes (gnomAD). c.5850delT has been reported in the literature in multiple individuals affected with Meckel Syndrome (e.g. Baala_2007, Tallila_2009), Leber congenital amaurosis (e.g. Perrault_2007) and Nephronophthisis/Joubert Syndrome (e.g. Tory_2007). These data indicate that the variant is very likely to be associated with disease. Two ClinVar submitters have assessed the variant since 2014: both classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. - |
Leber congenital amaurosis Pathogenic:1
Pathogenic, no assertion criteria provided | clinical testing | Natera, Inc. | Sep 25, 2020 | - - |
Bardet-Biedl syndrome 14 Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | Jun 13, 2023 | - - |
Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis;C0687120:Nephronophthisis Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Dec 04, 2023 | This sequence change creates a premature translational stop signal (p.Phe1950Leufs*15) in the CEP290 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in CEP290 are known to be pathogenic (PMID: 16909394, 17345604, 20690115). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This premature translational stop signal has been observed in individual(s) with a spectrum of CEP290-related ciliopathy conditions (PMID: 17345604, 17564974, 21866095, 26667666). ClinVar contains an entry for this variant (Variation ID: 56740). For these reasons, this variant has been classified as Pathogenic. - |
Senior-Loken syndrome 6;C1857780:Joubert syndrome 5;C1857821:Leber congenital amaurosis 10;C1970161:Meckel syndrome, type 4;C2673874:Bardet-Biedl syndrome 14 Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Feb 11, 2022 | - - |
Computational scores
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SpliceAI score (max)
Details are displayed if max score is > 0.2
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