chr12-88059938-AT-A

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_025114.4(CEP290):​c.6604delA​(p.Ile2202fs) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000104 in 1,442,262 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

CEP290
NM_025114.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:10

Conservation

PhyloP100: 1.00
Variant links:
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 12-88059938-AT-A is Pathogenic according to our data. Variant chr12-88059938-AT-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 197597.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-88059938-AT-A is described in Lovd as [Pathogenic]. Variant chr12-88059938-AT-A is described in Lovd as [Likely_pathogenic]. Variant chr12-88059938-AT-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CEP290NM_025114.4 linkuse as main transcriptc.6604delA p.Ile2202fs frameshift_variant 48/54 ENST00000552810.6 NP_079390.3 O15078Q05BJ6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CEP290ENST00000552810.6 linkuse as main transcriptc.6604delA p.Ile2202fs frameshift_variant 48/541 NM_025114.4 ENSP00000448012.1 O15078

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.0000104
AC:
15
AN:
1442262
Hom.:
0
Cov.:
30
AF XY:
0.00000978
AC XY:
7
AN XY:
715894
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000389
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000127
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.0000264

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Leber congenital amaurosis 10 Pathogenic:2
Likely pathogenic, criteria provided, single submitterclinical testingInstitute of Medical Molecular Genetics, University of ZurichJan 30, 2021- -
Pathogenic, criteria provided, single submitterclinical testingDBGen Ocular GenomicsJun 01, 2021- -
See cases Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingInstitute of Human Genetics, University Hospital MuensterNov 23, 2019ACMG categories: PVS1,PM2,PP4 -
CEP290-related disorder Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesMar 03, 2023The CEP290 c.6604delA variant is predicted to result in a frameshift and premature protein termination (p.Ile2202Leufs*24). This variant was reported in the compound heterozygous state in patients with Leber congenital amaurosis (Perrault et al. 2007. PubMed ID: 17345604). This variant is reported in 0.0032% of alleles in individuals of Latino descent in gnomAD (http://gnomad.broadinstitute.org/variant/12-88453715-AT-A). Frameshift variants in CEP290 are expected to be pathogenic. This variant is interpreted as pathogenic. -
Leber congenital amaurosis Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.Mar 25, 2020- -
not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Aug 28, 2014- -
Bardet-Biedl syndrome 14 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsDec 20, 2023- -
Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis;C0687120:Nephronophthisis Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 19, 2023This premature translational stop signal has been observed in individuals with Leber congenital amaurosis (PMID: 17345604). For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 197597). This variant is also known as p.Ile2203LeufsX23. 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 sequence change creates a premature translational stop signal (p.Ile2202Leufs*24) 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). -
Retinal dystrophy Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingInstitute of Human Genetics, Univ. Regensburg, Univ. RegensburgJan 01, 2018- -
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 submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 17, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs758329611; hg19: chr12-88453715; API