chr5-37221459-G-A

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM1PM2PM5PP5_Very_Strong

The NM_001384732.1(CPLANE1):​c.2611C>T​(p.Arg871Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000244 in 1,353,702 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R871H) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

CPLANE1
NM_001384732.1 missense

Scores

5
7
5

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3O:1

Conservation

PhyloP100: 5.13
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_001384732.1
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr5-37221458-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2418530.Status of the report is criteria_provided_single_submitter, 1 stars.
PP5
Variant 5-37221459-G-A is Pathogenic according to our data. Variant chr5-37221459-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 217589.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr5-37221459-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CPLANE1NM_001384732.1 linkuse as main transcriptc.2611C>T p.Arg871Cys missense_variant 15/53 ENST00000651892.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CPLANE1ENST00000651892.2 linkuse as main transcriptc.2611C>T p.Arg871Cys missense_variant 15/53 NM_001384732.1 A2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000355
AC:
4
AN:
112684
Hom.:
0
AF XY:
0.0000499
AC XY:
3
AN XY:
60170
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000160
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000688
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000420
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000244
AC:
33
AN:
1353702
Hom.:
0
Cov.:
29
AF XY:
0.0000285
AC XY:
19
AN XY:
667014
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000431
Gnomad4 EAS exome
AF:
0.0000294
Gnomad4 SAS exome
AF:
0.0000141
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000263
Gnomad4 OTH exome
AF:
0.0000357
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000808
AC:
2

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Joubert syndrome 17 Pathogenic:1Other:1
not provided, no classification providedphenotyping onlyGenomeConnect - Brain Gene Registry-Variant classified as Pathogenic and reported on 01-22-2018 by HNL Genomics Connective Tissue Gene Tests. Assertions are reported exactly as they appear on the patient provided laboratory report. GenomeConnect does not attempt to reinterpret the variant. The IDDRC-CTSA National Brain Gene Registry (BGR) is a study funded by the U.S. National Center for Advancing Translational Sciences (NCATS) and includes 13 Intellectual and Developmental Disability Research Center (IDDRC) institutions. The study is led by Principal Investigator Dr. Philip Payne from Washington University. The BGR is a data commons of gene variants paired with subject clinical information. This database helps scientists learn more about genetic changes and their impact on the brain and behavior. Participation in the Brain Gene Registry requires participation in GenomeConnect. More information about the Brain Gene Registry can be found on the study website - https://braingeneregistry.wustl.edu/. -
Pathogenic, criteria provided, single submitterresearchUW Hindbrain Malformation Research Program, University of WashingtonFeb 23, 2015- -
not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpApr 07, 2023ClinVar contains an entry for this variant (Variation ID: 217589). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on CPLANE1 protein function. This missense change has been observed in individual(s) with Joubert syndrome (PMID: 26092869). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 871 of the CPLANE1 protein (p.Arg871Cys). -
CPLANE1-related disorder Pathogenic:1
Likely pathogenic, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJan 16, 2024The CPLANE1 c.2611C>T variant is predicted to result in the amino acid substitution p.Arg871Cys. This variant was reported in an individual with Joubert syndrome (Bachmann-Gagescu et al. 2015. PubMed ID: 26092869). This variant is reported in 0.016% of alleles in individuals of Ashkenazi Jewish descent in gnomAD. This variant is interpreted as likely pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Uncertain
0.10
D
BayesDel_noAF
Benign
-0.090
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.21
T;T
Eigen
Pathogenic
0.76
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.91
.;D
M_CAP
Uncertain
0.14
D
MetaRNN
Uncertain
0.74
D;D
MetaSVM
Benign
-0.76
T
MutationTaster
Benign
1.0
D;D;D
PROVEAN
Pathogenic
-4.5
D;D
REVEL
Uncertain
0.39
Sift
Uncertain
0.0020
D;D
Sift4G
Pathogenic
0.0010
D;D
Vest4
0.86
MutPred
0.55
Loss of MoRF binding (P = 0.0755);Loss of MoRF binding (P = 0.0755);
MVP
0.54
MPC
0.67
ClinPred
0.82
D
GERP RS
5.6
Varity_R
0.32
gMVP
0.41

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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: rs760906097; hg19: chr5-37221561; API