chr12-88083105-T-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP6

The NM_025114.4(CEP290):c.4938A>G(p.Lys1646Lys) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000999 in 1,541,710 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

CEP290
NM_025114.4 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 2.62

Publications

1 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: Likely_benign. The variant received -1 ACMG points.

BP6

Variant 12-88083105-T-C is Benign according to our data. Variant chr12-88083105-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 241585.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEP290	NM_025114.4 link	c.4938A>G	p.Lys1646Lys	synonymous_variant	Exon 37 of 54	ENST00000552810.6	NP_079390.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEP290	ENST00000552810.6 link	c.4938A>G	p.Lys1646Lys	synonymous_variant	Exon 37 of 54	1	NM_025114.4	ENSP00000448012.1

Frequencies

GnomAD3 genomes

AF:

0.0000985

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000648

AC:

AN:

154422

AF XY:

0.0000368

show subpopulations

Gnomad AFR exome

AF:

0.000233

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:

0.000111

Gnomad OTH exome

AF:

0.000241

GnomAD4 exome

AF:

0.000100

AC:

139

AN:

1389472

Hom.:

Cov.:

AF XY:

0.0000875

AC XY:

AN XY:

685334

show subpopulations

African (AFR)

AF:

0.0000323

AC:

AN:

30936

American (AMR)

AF:

0.00

AC:

AN:

33720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25064

East Asian (EAS)

AF:

0.000168

AC:

AN:

35806

South Asian (SAS)

AF:

0.00

AC:

AN:

76012

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49852

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5670

European-Non Finnish (NFE)

AF:

0.0000958

AC:

103

AN:

1074764

Other (OTH)

AF:

0.000503

AC:

AN:

57648

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.447

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

AF:

0.0000985

AC:

AN:

152238

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74380

show subpopulations

African (AFR)

AF:

0.000145

AC:

AN:

41468

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.000192

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68046

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.0000772

Hom.:

Bravo

AF:

0.000151

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

CEP290-related disorder

Uncertain:1

Aug 22, 2024

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

The CEP290 c.4938A>G variant is not predicted to result in an amino acid change (p.=). Available splicing prediction programs indicate that this variant may lead to the creation of a novel splice donor site (SpliceAI, Jaganathan et al. 2019. PubMed ID: 30661751). To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.023% of alleles in individuals of African descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Leber congenital amaurosis

Uncertain:1

Apr 17, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Senior-Loken syndrome 6;C1857780:Joubert syndrome 5;C1857821:Leber congenital amaurosis 10;C1970161:Meckel syndrome, type 4;C2673874:Bardet-Biedl syndrome 14

Uncertain:1

Oct 31, 2018

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

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

Benign:1

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.48

CADD

Benign

(source)

DANN

Benign

0.65

PhyloP100

2.6

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.38

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.38

Position offset: 0

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over