dbSNP rs779680371: CPLANE1:p.Leu171SerfsTer11 (chr5-37244434-GA-G) – ACMG Classification: Pathogenic (18 pts)

Variant summary

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

The NM_001384732.1(CPLANE1):c.510delT(p.Leu171SerfsTer11) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,551,208 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

CPLANE1
NM_001384732.1 frameshift

Scores

Not classified

Clinical Significance

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

Conservation

PhyloP100: 0.368

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:

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 5-37244434-GA-G is Pathogenic according to our data. Variant chr5-37244434-GA-G is described in ClinVar as [Pathogenic]. Clinvar id is 217578.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr5-37244434-GA-G is described in Lovd as [Pathogenic]. Variant chr5-37244434-GA-G is described in Lovd as [Pathogenic]. Variant chr5-37244434-GA-G is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CPLANE1	NM_001384732.1 link	c.510delT	p.Leu171SerfsTer11	frameshift_variant	Exon 5 of 53	ENST00000651892.2	NP_001371661.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CPLANE1	ENST00000651892.2 link	c.510delT	p.Leu171SerfsTer11	frameshift_variant	Exon 5 of 53		NM_001384732.1	ENSP00000498265.2	A0A494BZW6
CPLANE1	ENST00000508244.5 link	c.510delT	p.Leu171SerfsTer11	frameshift_variant	Exon 4 of 51	5		ENSP00000421690.1	Q9H799-1
CPLANE1	ENST00000425232.7 link	n.291delT		non_coding_transcript_exon_variant	Exon 2 of 30	5		ENSP00000389014.3	A0A7I2XYG4
CPLANE1	ENST00000675547.1 link	n.640+1044delT		intron_variant	Intron 2 of 14

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151848

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1399360

Hom.:

Cov.:

AF XY:

0.0000174

AC XY:

AN XY:

690170

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:

0.0000204

Gnomad4 OTH exome

AF:

0.0000172

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151848

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74138

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

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

Dec 03, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Joubert syndrome 17

Pathogenic:1

Feb 23, 2015

UW Hindbrain Malformation Research Program, University of Washington

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: research

- -

not provided

Pathogenic:1

Nov 27, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is not present in population databases (ExAC no frequency). This variant has been observed in an individual within a cohort of individuals who have clinical findings of Joubert syndrome or have a sibling with Joubert syndrome (PMID: 26092869). ClinVar contains an entry for this variant (Variation ID: 217578). Loss-of-function variants in CPLANE1 are known to be pathogenic (PMID: 22425360, 24178751). For these reasons, this variant has been classified as Pathogenic. This sequence change creates a premature translational stop signal (p.Leu171Serfs*11) in the CPLANE1 gene. It is expected to result in an absent or disrupted protein product. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

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