rs373307908

Variant names:

• chr12-88079172-G-A
• rs373307908
• NM_025114.4:c.5284C>T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_025114.4(CEP290):​c.5284C>T​(p.Arg1762Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000437 in 1,600,728 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 Uncertain significance (★★).

• Frequency:
  • Genomes: 𝑓 0.00011 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000037 (0 hom.)
• Consequence: CEP290 NM_025114.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:14
• Conservation: PhyloP100: 7.19

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]

LOC124902977 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.27059683).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEP290	NM_025114.4	c.5284C>T	p.Arg1762Cys	missense_variant	Exon 39 of 54	ENST00000552810.6	NP_079390.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEP290	ENST00000552810.6	c.5284C>T	p.Arg1762Cys	missense_variant	Exon 39 of 54	1	NM_025114.4	ENSP00000448012.1

Frequencies

GnomAD3 genomes AF: 0.000105 AC: 16 AN: 151702 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000526

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000386

Gnomad SAS AF: 0.000208

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.000959

GnomAD3 exomes AF: 0.0000378 AC: 9 AN: 238350 Hom.: 0 AF XY: 0.0000308 AC XY: 4 AN XY: 129692

Gnomad AFR exome AF: 0.0000683

Gnomad AMR exome AF: 0.0000632

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000118

Gnomad SAS exome AF: 0.0000692

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000354

GnomAD4 exome AF: 0.0000373 AC: 54 AN: 1449026 Hom.: 0 Cov.: 31 AF XY: 0.0000375 AC XY: 27 AN XY: 720306

Gnomad4 AFR exome AF: 0.0000612

Gnomad4 AMR exome AF: 0.0000704

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000516

Gnomad4 SAS exome AF: 0.000132

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000208

Gnomad4 OTH exome AF: 0.000217

GnomAD4 genome AF: 0.000105 AC: 16 AN: 151702 Hom.: 0 Cov.: 32 AF XY: 0.000108 AC XY: 8 AN XY: 74032

Gnomad4 AFR AF: 0.0000242

Gnomad4 AMR AF: 0.000526

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000386

Gnomad4 SAS AF: 0.000208

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.000959

Alfa AF: 0.0000661 Hom.: 0

Bravo AF: 0.0000642

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000122 AC: 1

ExAC AF: 0.0000248 AC: 3

Asia WGS AF: 0.00289 AC: 10 AN: 3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:14

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Uncertain:2

Jun 02, 2015

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jun 10, 2014

Eurofins Ntd Llc (ga)

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases Uncertain:1

Mar 18, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.5284C>T (p.R1762C) alteration is located in exon 39 (coding exon 38) of the CEP290 gene. This alteration results from a C to T substitution at nucleotide position 5284, causing the arginine (R) at amino acid position 1762 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Senior-Loken syndrome 6 Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Senior-Loken syndrome 6;C1857780:Joubert syndrome 5;C1970161:Meckel syndrome, type 4 Uncertain:1

Feb 22, 2021

New York Genome Center

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

CEP290-related disorder Uncertain:1

Mar 01, 2024

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The CEP290 c.5284C>T variant is predicted to result in the amino acid substitution p.Arg1762Cys. This variant in the homozygous condition was reported as uncertain in one individual with ciliopathy (Best et al. 2022. PubMed ID: 35764379). This variant is reported in 0.016% of alleles in individuals of East Asian descent in gnomAD. A different substitution affecting the same amino acid (p.Arg1762His) was reported in a cohort study of patients with suspected retinitis pigmentosa (Table S2, Gao. 2019. PubMed ID: 31054281). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Leber congenital amaurosis 10 Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Leber congenital amaurosis Uncertain:1

Jan 07, 2020

Natera, Inc.

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Bardet-Biedl syndrome 14 Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis;C0687120:Nephronophthisis Uncertain:1

Oct 24, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 1762 of the CEP290 protein (p.Arg1762Cys). This variant is present in population databases (rs373307908, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with CEP290-related conditions. ClinVar contains an entry for this variant (Variation ID: 197084). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CEP290 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Meckel syndrome, type 4 Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Retinal dystrophy Uncertain:1

Oct 01, 2023

Dept Of Ophthalmology, Nagoya University

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: research

- -

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

Mar 30, 2022

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Joubert syndrome 5 Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Benign	-0.099	T
BayesDel_noAF	Benign	-0.20
CADD	Pathogenic	31
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.37	.;.;T
Eigen	Uncertain	0.59
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.95	D;D;D
M_CAP	Benign	0.074	D
MetaRNN	Benign	0.27	T;T;T
MetaSVM	Benign	-0.53	T
MutationAssessor	Benign	1.6	.;.;L
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-2.0	N;D;N
REVEL	Uncertain	0.31
Sift	Uncertain	0.015	D;D;D
Sift4G	Uncertain	0.017	D;D;D
Polyphen		1.0	.;.;D
Vest4		0.53
MVP		0.84
MPC		0.30
ClinPred		0.24	T
GERP RS		5.2
Varity_R		0.14
gMVP		0.23

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

Other links and lift over

dbSNP: rs373307908; hg19: chr12-88472949; COSMIC: COSV100467751;