rs965522059

Variant summary

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

The NM_025114.4(CEP290):​c.1066-1G>A variant causes a splice acceptor change. The variant allele was found at a frequency of 0.0000179 in 1,118,800 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

CEP290
NM_025114.4 splice_acceptor

Scores

4
2
1
Splicing: ADA: 1.000
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:5

Conservation

PhyloP100: 6.43
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, Cryptic splice site detected, with MaxEntScore 4.8, offset of 1, new splice context is: gttttaaaatattttataAGgta. Cryptic site results in frameshift change. If cryptic site found is not functional and variant results in exon loss, it results in frameshift change.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 12-88125370-C-T is Pathogenic according to our data. Variant chr12-88125370-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 439474.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-88125370-C-T is described in Lovd as [Pathogenic]. Variant chr12-88125370-C-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CEP290NM_025114.4 linkuse as main transcriptc.1066-1G>A splice_acceptor_variant ENST00000552810.6 NP_079390.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CEP290ENST00000552810.6 linkuse as main transcriptc.1066-1G>A splice_acceptor_variant 1 NM_025114.4 ENSP00000448012 P4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000152
AC:
1
AN:
65770
Hom.:
0
AF XY:
0.0000276
AC XY:
1
AN XY:
36192
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000324
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000179
AC:
20
AN:
1118800
Hom.:
0
Cov.:
19
AF XY:
0.0000184
AC XY:
10
AN XY:
544728
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000218
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesMar 08, 2017- -
CEP290-related disorder Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesAug 05, 2024The CEP290 c.1066-1G>A variant is predicted to disrupt the AG splice acceptor site and interfere with normal splicing. This variant has been reported along with a second CEP290 variant in an individual with Joubert syndrome (Helou et al. 2007. PubMed ID: 17617513), and in an individual with Senior-Løken syndrome (Chaki et al. 2011. PubMed ID: 21866095, Supplementary Table S5), and in another individual with Leber congenital amaurosis (Sheck. 2018. PubMed ID: 29398085). This variant is reported in 0.0032% of alleles in individuals of European (Non-Finnish) descent in gnomAD. Variants that disrupt the consensus splice acceptor site in CEP290 are expected to be pathogenic. This variant is interpreted as pathogenic. -
Bardet-Biedl syndrome 14 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsJan 04, 2024- -
Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis;C0687120:Nephronophthisis Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 18, 2024This sequence change affects an acceptor splice site in intron 12 of the CEP290 gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and 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. Disruption of this splice site has been observed in individual(s) with Joubert syndrome, and Leber congenital amaurosis (PMID: 17617513, 21153841). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 439474). 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. -
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 GeneticsSep 29, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.40
CADD
Pathogenic
35
DANN
Uncertain
1.0
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.95
FATHMM_MKL
Uncertain
0.94
D
MutationTaster
Benign
1.0
D;D;D
GERP RS
5.4

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.94
SpliceAI score (max)
1.0
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.80
Position offset: -2
DS_AL_spliceai
1.0
Position offset: -1

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: rs965522059; hg19: chr12-88519147; API