rs770770257

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_001384732.1(CPLANE1):​c.5733T>G​(p.Tyr1911*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000973 in 1,542,360 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 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000079 ( 0 hom. )

Consequence

CPLANE1
NM_001384732.1 stop_gained

Scores

2
4
1

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:2

Conservation

PhyloP100: 2.50

Publications

1 publications found
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 Gene-Disease associations (from GenCC):
  • Joubert syndrome 17
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, ClinGen, G2P, Illumina, Labcorp Genetics (formerly Invitae)
  • orofaciodigital syndrome type 6
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P
  • Joubert syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 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 5-37180021-A-C is Pathogenic according to our data. Variant chr5-37180021-A-C is described in ClinVar as Pathogenic. ClinVar VariationId is 427893.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CPLANE1NM_001384732.1 linkc.5733T>G p.Tyr1911* stop_gained Exon 28 of 53 ENST00000651892.2 NP_001371661.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CPLANE1ENST00000651892.2 linkc.5733T>G p.Tyr1911* stop_gained Exon 28 of 53 NM_001384732.1 ENSP00000498265.2 A0A494BZW6

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000145
AC:
3
AN:
206618
AF XY:
0.0000264
show subpopulations
Gnomad AFR exome
AF:
0.0000729
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000198
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000791
AC:
11
AN:
1390172
Hom.:
0
Cov.:
26
AF XY:
0.0000116
AC XY:
8
AN XY:
690306
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29476
American (AMR)
AF:
0.00
AC:
0
AN:
29400
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
23890
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37304
South Asian (SAS)
AF:
0.00
AC:
0
AN:
74400
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51716
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5498
European-Non Finnish (NFE)
AF:
0.0000102
AC:
11
AN:
1081466
Other (OTH)
AF:
0.00
AC:
0
AN:
57022
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.439
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74356
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41464
American (AMR)
AF:
0.00
AC:
0
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5206
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000966
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Joubert syndrome 17 Pathogenic:1
May 18, 2017
Institute of Medical Genetics, University of Zurich
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Pathogenic:1
Jul 24, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Tyr1911*) 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 (rs770770257, gnomAD 0.005%). This premature translational stop signal has been observed in individual(s) with clinical features of Joubert syndrome (PMID: 25407461, 29321670). ClinVar contains an entry for this variant (Variation ID: 427893). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.49
D
BayesDel_noAF
Pathogenic
0.45
CADD
Pathogenic
35
DANN
Uncertain
0.99
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.87
D
PhyloP100
2.5
Vest4
0.15
GERP RS
3.3
Mutation Taster
=0/200
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs770770257; hg19: chr5-37180123; API