rs141507441

Positions:

Variant summary

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

The NM_001384732.1(CPLANE1):c.8872C>T(p.Arg2958*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000341 in 1,613,420 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

CPLANE1
NM_001384732.1 stop_gained

Scores

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:8O:1

Conservation

PhyloP100: 1.53

Variant links:

Genes affected

CPLANE1 (HGNC:25801): (ciliogenesis and planar polarity effector complex subunit 1) The protein encoded by this gene has putative coiled-coil domains and may be a transmembrane protein. Defects in this gene are a cause of Joubert syndrome (JBTS). [provided by RefSeq, May 2012]

CPLANE1 links:

CPLANE1 (HGNC:):

CPLANE1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 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 5-37125330-G-A is Pathogenic according to our data. Variant chr5-37125330-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 217571.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr5-37125330-G-A is described in Lovd as [Likely_pathogenic]. Variant chr5-37125330-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CPLANE1	NM_001384732.1 linkuse as main transcript	c.8872C>T	p.Arg2958*	stop_gained	47/53	ENST00000651892.2	NP_001371661.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CPLANE1	ENST00000651892.2 linkuse as main transcript	c.8872C>T	p.Arg2958*	stop_gained	47/53		NM_001384732.1	ENSP00000498265.2		A0A494BZW6

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

151874

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000883

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000318

AC:

AN:

251214

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135778

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000335

AC:

AN:

1461546

Hom.:

Cov.:

AF XY:

0.0000344

AC XY:

AN XY:

727072

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000448

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000405

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000395

AC:

AN:

151874

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74142

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000883

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000105

Hom.:

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:8Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Joubert syndrome 17

Pathogenic:3Other:1

Pathogenic, criteria provided, single submitter	research	UW Hindbrain Malformation Research Program, University of Washington	Feb 23, 2015	- -
Pathogenic, criteria provided, single submitter	clinical testing	Neuberg Centre For Genomic Medicine, NCGM	Jun 22, 2023	The stop gained c.8872C>T (p.Arg2958Ter) variant in the CPLANE1 gene has been observed in individual(s) with Joubert syndrome (Bachmann-Gagescu, R et al., 2015). This variant is reported with the allele frequency (0.003%) in the gnomAD Exomes. It is submitted to ClinVar as Pathogenic (multiple submissions). This variant is predicted to cause loss of normal protein function either through protein truncation or nonsense-mediated mRNA decay. Computational evidence (MutationTaster - Disease causing) predicts damaging effect on protein structure and function for this variant. The nucleotide change c.8872C>T in CPLANE1 is predicted as conserved by GERP++ and PhyloP across 100 vertebrates. Loss of function variants have been previously reported to be disease causing. For these reasons, this variant has been classified as Pathogenic. In the absence of another reportable variant, the molecular diagnosis is not confirmed. -
not provided, no classification provided	literature only	GeneReviews	-	- -
Pathogenic, criteria provided, single submitter	clinical testing	Victorian Clinical Genetics Services, Murdoch Childrens Research Institute	May 06, 2021	Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0102 - Loss of function is a likely mechanism of disease in this gene and is associated with Joubert syndrome 17 (MIM#614615) and orofaciodigital syndrome VI (MIM#277170) (OMIM). (I) 0106 - This gene is associated with autosomal recessive disease. (I) 0201 - Variant is predicted to cause nonsense-mediated decay (NMD) and loss of protein (premature termination codon is located at least 54 nucleotides upstream of the final exon-exon junction). (SP) 0251 - This variant is heterozygous. (I) 0304 - Variant is present in gnomAD <0.01 for a recessive condition (v2: 9 heterozygotes, 0 homozygotes). (SP) 0701 - Other NMD-predicted variants comparable to the one identified in this case have very strong previous evidence for pathogenicity. There are at least nine pathogenic NMD-predicted variants that have been previously reported (ClinVar, Decipher, PMID: 29605658) (SP) 0801 - This variant has strong previous evidence of pathogenicity in unrelated individuals. This variant has been reported in five individuals diagnosed with Joubert syndrome or skeletal dysplasia (ClinVar, PMIDs: 25920555; 30408610; 32233090). (SP) 0905 - No published segregation evidence has been identified for this variant. (I) 1007 - No published functional evidence has been identified for this variant. (I) 1201 - Heterozygous variant detected in trans with a second pathogenic heterozygous variant (NM_023073.3 (CPLANE1): c.2932C>T; p.A(rg978*)) in a recessive disease. (SP) 1206 - This variant has been shown to be paternally inherited. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -

not provided

Pathogenic:3

Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Oct 22, 2023	This sequence change creates a premature translational stop signal (p.Arg2904*) in the CPLANE1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in CPLANE1 are known to be pathogenic (PMID: 24178751, 26092869). This variant is present in population databases (rs141507441, gnomAD 0.004%). This premature translational stop signal has been observed in individual(s) with Joubert syndrome (PMID: 25920555, 26092869). ClinVar contains an entry for this variant (Variation ID: 217571). For these reasons, this variant has been classified as Pathogenic. -
Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	Oct 14, 2022	Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 30408610, 31130284, 32233090, 25920555) -
Pathogenic, no assertion criteria provided	clinical testing	Genetic Services Laboratory, University of Chicago	May 01, 2022	DNA sequence analysis of the CPLANE1 gene demonstrated a sequence change, c.8710C>T, in exon 46 that results in the creation of a premature stop codon at amino acid position 2904, p.Arg2904*. This sequence change is predicted to result in an abnormal transcript, which may be degraded, or may lead to the production of a truncated CPLANE1 protein with potentially abnormal function. This sequence change has been described in the gnomAD database with a frequency of 0.0057% in the Latino/Admixed American subpopulation (dbSNP rs141507441). This pathogenic sequence change has previously been described in several individuals with CPLANE1-related disorders in the homozygous or compound heterozygous state (PMID: 25920555, 32233090). Pathogenic variants in CPLANE1 are associated with autosomal recessive Joubert syndrome and autosomal recessive Orofaciodigital syndrome VI [OMIM# 614571]. The CPLANE1 cDNA reference sequence used is NM_023073.3. -

Orofaciodigital syndrome type 6;C3553264:Joubert syndrome 17

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Apr 11, 2022

- -

Inborn genetic diseases

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 31, 2021

The c.8710C>T (p.R2904*) alteration, located in exon 46 (coding exon 45) of the C5orf42 gene, consists of a C to T substitution at nucleotide position 8710. This changes the amino acid from a arginine (R) to a stop codon at amino acid position 2904. This alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. This mutation has been reported in the homozygous or compound heterozygous state in several individuals with a diagnosis of CPLANE1-related ciliopathy (Kroes, 2016; Monies, 2019; Liu, 2020). Based on the available evidence, this alteration is classified as pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.55

BayesDel_noAF

Pathogenic

0.27

CADD

Pathogenic

DANN

Uncertain

0.99

Eigen

Benign

0.17

Eigen_PC

Benign

-0.059

FATHMM_MKL

Benign

0.31

Vest4

0.20

GERP RS

1.6

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over