rs756302731

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_025114.4(CEP290):c.4966_4967delGA(p.Glu1656AsnfsTer3) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000291 in 1,374,634 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: 0.0000029 ( 0 hom. )

Consequence

CEP290
NM_025114.4 frameshift

Scores

Not classified

Clinical Significance

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

Conservation

PhyloP100: 4.48

Publications

6 publications found

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]

CEP290 Gene-Disease associations (from GenCC):

CEP290-related ciliopathy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
Joubert syndrome 5
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
Bardet-Biedl syndrome 14
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
Leber congenital amaurosis 10
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
Leber congenital amaurosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Bardet-Biedl syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Joubert syndrome with oculorenal defect
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Meckel syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Senior-Loken syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CEP290 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 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 12-88083075-TTC-T is Pathogenic according to our data. Variant chr12-88083075-TTC-T is described in ClinVar as Pathogenic. ClinVar VariationId is 217632.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEP290	NM_025114.4 link	c.4966_4967delGA	p.Glu1656AsnfsTer3	frameshift_variant	Exon 37 of 54	ENST00000552810.6	NP_079390.3	O15078Q05BJ6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEP290	ENST00000552810.6 link	c.4966_4967delGA	p.Glu1656AsnfsTer3	frameshift_variant	Exon 37 of 54	1	NM_025114.4	ENSP00000448012.1		O15078

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000709

AC:

AN:

141048

AF XY:

0.0000135

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000171

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000291

AC:

AN:

1374634

Hom.:

AF XY:

0.00000295

AC XY:

AN XY:

677570

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

30110

American (AMR)

AF:

0.0000338

AC:

AN:

29610

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24552

East Asian (EAS)

AF:

0.00

AC:

AN:

35480

South Asian (SAS)

AF:

0.00

AC:

AN:

73358

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49444

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5638

European-Non Finnish (NFE)

AF:

9.35e-7

AC:

AN:

1069294

Other (OTH)

AF:

0.0000350

AC:

AN:

57148

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.007931), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Meckel-Gruber syndrome;C0431399:Joubert syndrome;C0687120:Nephronophthisis

Pathogenic:1

Aug 15, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Glu1656Asnfs*3) 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). This variant is present in population databases (rs756302731, gnomAD 0.002%). This premature translational stop signal has been observed in individual(s) with clinical features of CEP290-related conditions (PMID: 17345604, 17409309, 26092869, 26673778). ClinVar contains an entry for this variant (Variation ID: 217632). For these reasons, this variant has been classified as Pathogenic. -

Nephronophthisis

Pathogenic:1

Apr 18, 2014

Sydney Genome Diagnostics, Children's Hospital Westmead

Significance:Likely pathogenic

Review Status:no assertion criteria provided

Collection Method:clinical testing

c.4966_4967delGA is a frameshifting variant that is predicted to create a premature stop codon two amino acid positions downstream (p.Glu1656Asnfs*3), and may result in a null allele due to nonsense-mediated mRNA decay. This variant is considered to be pathogenic, and has been previously described in a patient with Leber congenital amaurosis (Coppieters et. al, 2010, Hum Mut, 31: E1709-E1766) -

Leber congenital amaurosis

Pathogenic:1

Aug 14, 2020

Natera, Inc.

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Bardet-Biedl syndrome 14

Pathogenic:1

Mar 22, 2024

Baylor Genetics

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Joubert syndrome 5

Pathogenic:1

Feb 23, 2015

UW Hindbrain Malformation Research Program, University of Washington

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

4.5

Mutation Taster

=0/200

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over