chr12-88093903-A-AT

Variant summary

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

The NM_025114.4(CEP290):​c.3175_3176insA​(p.Ile1059AsnfsTer11) variant causes a frameshift change. The variant allele was found at a frequency of 0.0000739 in 1,610,848 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: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000072 ( 0 hom. )

Consequence

CEP290
NM_025114.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:16O:1

Conservation

PhyloP100: 5.89
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 12-88093903-A-AT is Pathogenic according to our data. Variant chr12-88093903-A-AT is described in ClinVar as [Pathogenic]. Clinvar id is 99850.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CEP290NM_025114.4 linkuse as main transcriptc.3175_3176insA p.Ile1059AsnfsTer11 frameshift_variant 28/54 ENST00000552810.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CEP290ENST00000552810.6 linkuse as main transcriptc.3175_3176insA p.Ile1059AsnfsTer11 frameshift_variant 28/541 NM_025114.4 P4

Frequencies

GnomAD3 genomes
AF:
0.0000924
AC:
14
AN:
151518
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000207
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000720
AC:
105
AN:
1459212
Hom.:
0
Cov.:
30
AF XY:
0.0000661
AC XY:
48
AN XY:
725870
show subpopulations
Gnomad4 AFR exome
AF:
0.0000599
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000465
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000838
Gnomad4 OTH exome
AF:
0.0000996
GnomAD4 genome
AF:
0.0000923
AC:
14
AN:
151636
Hom.:
0
Cov.:
32
AF XY:
0.0000945
AC XY:
7
AN XY:
74080
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000207
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000174
Hom.:
0
Bravo
AF:
0.0000604

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:16Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:8Other:1
not provided, no classification providedliterature onlyRetina International-- -
Pathogenic, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Pathogenic, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, Amsterdam University Medical Center-- -
Pathogenic, no assertion criteria providedclinical testingDiagnostic Laboratory, Department of Genetics, University Medical Center Groningen-- -
Pathogenic, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Pathogenic, criteria provided, single submitterclinical testingGeneDxJul 13, 2022Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Reported multiple times previously in association with CEP290-related disorders (Sayer et al., 2006; Chaki et al., 2011; Yzer et al., 2012); This variant is associated with the following publications: (PMID: 23559409, 16682973, 24946806, 19466712, 22355252, 21866095, 17564974, 29398085) -
Pathogenic, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenSep 01, 2017- -
Pathogenic, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
CEP290-related disorder Pathogenic:2
Pathogenic, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJun 03, 2024The CEP290 c.3175dupA variant is predicted to result in a frameshift and premature protein termination (p.Ile1059Asnfs*11). This variant has previously been reported to be causative for Joubert syndrome (Sayer et al. 2006. PubMed ID: 16682973; Chaki et al. 2011. PubMed ID: 21866095) and Leber congenital amaurosis (LCA) (Yzer et al. 2012. PubMed ID: 22355252). This variant is reported in 0.0096% of alleles in individuals of European (non-Finnish) descent in gnomAD. Frameshift variants in CEP290 are expected to be pathogenic. This variant is interpreted as pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingRady Children's Institute for Genomic Medicine, Rady Children's Hospital San Diego-This frameshifting variant in exon 28 of 54 is predicted to result in loss of normal protein function through either protein truncation or nonsense-mediated mRNA decay. Loss-of-function variation in CEP290 is an established mechanism of disease (PMID: 32600475, 20301500, 16909394, 20690115). This variant has been previously reported as a compound heterozygous change in patients with Leber congenital amaurosis and Meckel syndrome (PMID: 22355252, 16682973,29398085, 35352487, 29178642). The c.3175dup (p.Ile1059AsnFsTer11) variant is present in the heterozygous state in the gnomAD population database at a frequency of 0.006% (16/271936), and is absent in the homozygous state, thus is presumed to be rare. Based on the available evidence, c.3175dup (p.Ile1059AsnFsTer11) is classified as Pathogenic. -
Joubert syndrome 5 Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingInstitute of Human Genetics Munich, Klinikum Rechts Der Isar, TU MünchenJan 16, 2020- -
Pathogenic, criteria provided, single submitterresearchUW Hindbrain Malformation Research Program, University of WashingtonFeb 23, 2015- -
Leber congenital amaurosis Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.Sep 16, 2020- -
Bardet-Biedl syndrome 14 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsMar 27, 2024- -
Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis;C0687120:Nephronophthisis Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 22, 2023This sequence change creates a premature translational stop signal (p.Ile1059Asnfs*11) 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 Joubert syndrome and/or Leber congenital amaurosis (PMID: 16682973, 17345604, 21245082, 22355252, 25920555). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. This variant is also known as c.3175-3176insA and c.3175insA. ClinVar contains an entry for this variant (Variation ID: 99850). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. -
Meckel-Gruber syndrome Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoAug 02, 2013- -

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: rs62640570; hg19: chr12-88487680; API