chr12-88125343-A-C

Variant names:

• chr12-88125343-A-C
• rs201988582
• NM_025114.4:c.1092T>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Strong BP6

The NM_025114.4(CEP290):​c.1092T>G​(p.Ile364Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000521 in 1,321,500 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. I364I) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.00065 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00050 (1 hom.)
• Consequence: CEP290 NM_025114.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:16 B:5
• Conservation: PhyloP100: 3.50
• Publications: 5 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.008333027).
• BP6: Variant 12-88125343-A-C is Benign according to our data. Variant chr12-88125343-A-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 281250.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEP290	NM_025114.4	c.1092T>G	p.Ile364Met	missense_variant	Exon 13 of 54	ENST00000552810.6	NP_079390.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEP290	ENST00000552810.6	c.1092T>G	p.Ile364Met	missense_variant	Exon 13 of 54	1	NM_025114.4	ENSP00000448012.1

Frequencies

GnomAD3 genomes AF: 0.000652 AC: 99 AN: 151928 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000591

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000384

Gnomad SAS AF: 0.00310

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000958

Gnomad OTH AF: 0.00191

GnomAD2 exomes AF: 0.000975 AC: 85 AN: 87176 AF XY: 0.00132

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000241

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000959

Gnomad OTH exome AF: 0.00243

GnomAD4 exome AF: 0.000505 AC: 590 AN: 1169454 Hom.: 1 Cov.: 20 AF XY: 0.000600 AC XY: 344 AN XY: 573114

African (AFR) AF: 0.00 AC: 0 AN: 24022

American (AMR) AF: 0.000435 AC: 8 AN: 18386

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 20404

East Asian (EAS) AF: 0.0000354 AC: 1 AN: 28236

South Asian (SAS) AF: 0.00324 AC: 138 AN: 42600

European-Finnish (FIN) AF: 0.0000459 AC: 2 AN: 43596

Middle Eastern (MID) AF: 0.00387 AC: 19 AN: 4910

European-Non Finnish (NFE) AF: 0.000413 AC: 388 AN: 939126

Other (OTH) AF: 0.000706 AC: 34 AN: 48174

GnomAD4 genome AF: 0.000651 AC: 99 AN: 152046 Hom.: 0 Cov.: 32 AF XY: 0.000686 AC XY: 51 AN XY: 74330

African (AFR) AF: 0.0000722 AC: 3 AN: 41536

American (AMR) AF: 0.000590 AC: 9 AN: 15256

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.000385 AC: 2 AN: 5190

South Asian (SAS) AF: 0.00311 AC: 15 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10592

Middle Eastern (MID) AF: 0.00340 AC: 1 AN: 294

European-Non Finnish (NFE) AF: 0.000958 AC: 65 AN: 67856

Other (OTH) AF: 0.00189 AC: 4 AN: 2112

Alfa AF: 0.000776 Hom.: 2

Bravo AF: 0.000582

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000258 AC: 2

ExAC AF: 0.000578 AC: 53

Asia WGS AF: 0.00145 AC: 5 AN: 3472

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:16 Benign:5

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Joubert syndrome 5 Uncertain:3

Jul 12, 2021

Molecular Medicine for Neurodegenerative and Neuromuscular Diseases Unit, IRCCS Fondazione Stella Maris

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: research

- -

Jan 12, 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. -

May 18, 2021

Genome-Nilou Lab

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Bardet-Biedl syndrome 14 Uncertain:3

Jul 14, 2021

Genome-Nilou Lab

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 12, 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. -

-

Molecular Endocrinology Laboratory, Christian Medical College

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Meckel syndrome, type 4 Uncertain:2

Jan 12, 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. -

Jul 14, 2021

Genome-Nilou Lab

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Senior-Loken syndrome 6 Uncertain:1 Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Likely benign

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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Jul 14, 2021

Genome-Nilou Lab

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided Uncertain:1 Benign:1

Oct 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 04, 2019

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Stuve-Wiedemann syndrome 2 Uncertain:1

Aug 09, 2023

Department of Human Genetics, Hannover Medical School

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Leber congenital amaurosis Uncertain:1

Apr 17, 2020

Natera, Inc.

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Retinitis pigmentosa Uncertain:1

Jun 01, 2021

DBGen Ocular Genomics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Kidney disorder Uncertain:1

May 10, 2021

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

CEP290-related disorder Uncertain:1

Aug 07, 2018

Genomic Research Center, Shahid Beheshti University of Medical Sciences

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Leber congenital amaurosis 10 Uncertain:1

Jan 12, 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. -

Inborn genetic diseases Benign:1

Aug 10, 2016

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Meckel-Gruber syndrome;C0431399:Joubert syndrome;C0687120:Nephronophthisis Benign:1

Jan 18, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified Benign:1

Mar 29, 2016

Eurofins Ntd Llc (ga)

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.090
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.45	.;T;T;.
Eigen	Uncertain	0.59
Eigen_PC	Uncertain	0.57
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Uncertain	0.89	D;D;D;D
M_CAP	Benign	0.033	D
MetaRNN	Benign	0.0083	T;T;T;T
MetaSVM	Benign	-0.64	T
MutationAssessor	Uncertain	2.4	.;M;.;.
PhyloP100		3.5
PrimateAI	Uncertain	0.64	T
PROVEAN	Benign	-1.5	N;N;.;.
REVEL	Benign	0.21
Sift	Pathogenic	0.0	D;D;.;.
Sift4G	Uncertain	0.014	D;D;T;T
Polyphen		1.0	.;D;.;.
Vest4		0.80
MVP		0.70
MPC		0.35
ClinPred		0.060	T
GERP RS		4.3
Varity_R		0.42
gMVP		0.46
Mutation Taster		=76/24	polymorphism

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

Other links and lift over

dbSNP: rs201988582; hg19: chr12-88519120;