5-37221361-C-T

Variant summary

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

The NM_001384732.1(CPLANE1):​c.2709G>A​(p.Trp903Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000735 in 1,359,976 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: not found (cov: 32)
Exomes 𝑓: 7.4e-7 ( 0 hom. )

Consequence

CPLANE1
NM_001384732.1 stop_gained

Scores

3
2
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 1.21
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]

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 5-37221361-C-T is Pathogenic according to our data. Variant chr5-37221361-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 217585.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr5-37221361-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CPLANE1NM_001384732.1 linkuse as main transcriptc.2709G>A p.Trp903Ter stop_gained 15/53 ENST00000651892.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CPLANE1ENST00000651892.2 linkuse as main transcriptc.2709G>A p.Trp903Ter stop_gained 15/53 NM_001384732.1 A2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
7.35e-7
AC:
1
AN:
1359976
Hom.:
0
Cov.:
29
AF XY:
0.00000149
AC XY:
1
AN XY:
670206
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.40e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Orofaciodigital syndrome type 6;C3553264:Joubert syndrome 17 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMay 23, 2022- -
Joubert syndrome 17 Pathogenic:1
Pathogenic, criteria provided, single submitterresearchUW Hindbrain Malformation Research Program, University of WashingtonFeb 23, 2015- -
CPLANE1-related disorder Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesFeb 13, 2023The CPLANE1 c.2709G>A variant is predicted to result in premature protein termination (p.Trp903*). This variant was reported along with a second nonsense CPLANE1 variant in an individual with Joubert syndrome (Patient UW195-3 in Table S5, Bachmann-Gagescu et al. 2015. PubMed ID: 26092869). This variant has not been reported in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. Nonsense variants in CPLANE1 are expected to be pathogenic. This variant is interpreted as pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.56
CADD
Pathogenic
35
DANN
Uncertain
0.99
Eigen
Pathogenic
0.77
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Benign
0.41
N
MutationTaster
Benign
1.0
A;A;D
Vest4
0.27
GERP RS
3.8

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs863225164; hg19: chr5-37221463; API