rs863225166
Variant summary
Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_001384732.1(CPLANE1):c.2923C>T(p.Gln975*) variant causes a stop gained, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000908 in 1,541,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_001384732.1 stop_gained, splice_region
Scores
Clinical Significance
Conservation
Publications
- Joubert syndrome 17Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, ClinGen, G2P, Illumina, Labcorp Genetics (formerly Invitae)
 - orofaciodigital syndrome type 6Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P
 - Joubert syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
 
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ACMG classification
Our verdict: Pathogenic. The variant received 18 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt | 
|---|---|---|---|---|---|---|---|---|
| CPLANE1 | NM_001384732.1  | c.2923C>T | p.Gln975* | stop_gained, splice_region_variant | Exon 17 of 53 | ENST00000651892.2 | NP_001371661.1 | 
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt | 
|---|---|---|---|---|---|---|---|---|---|---|
| CPLANE1 | ENST00000651892.2  | c.2923C>T | p.Gln975* | stop_gained, splice_region_variant | Exon 17 of 53 | NM_001384732.1 | ENSP00000498265.2 | 
Frequencies
GnomAD3 genomes   AF:  0.0000329  AC: 5AN: 152178Hom.:  0  Cov.: 32 show subpopulations 
GnomAD2 exomes  AF:  0.00000640  AC: 1AN: 156246 AF XY:  0.0000121   show subpopulations 
GnomAD4 exome  AF:  0.00000648  AC: 9AN: 1389290Hom.:  0  Cov.: 29 AF XY:  0.00000875  AC XY: 6AN XY: 685386 show subpopulations 
Age Distribution
GnomAD4 genome   AF:  0.0000329  AC: 5AN: 152178Hom.:  0  Cov.: 32 AF XY:  0.0000404  AC XY: 3AN XY: 74336 show subpopulations 
Age Distribution
ClinVar
Submissions by phenotype
not provided    Pathogenic:2 
Not observed at significant frequency in large population cohorts (gnomAD); 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; This variant is associated with the following publications: (PMID: 26092869) -
This sequence change creates a premature translational stop signal (p.Gln975*) 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 (no rsID available, gnomAD 0.002%). This premature translational stop signal has been observed in individual(s) with Joubert syndrome (PMID: 26092869). ClinVar contains an entry for this variant (Variation ID: 217587). 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. -
Joubert syndrome 17    Pathogenic:1 
- -
Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at