Genetic Variant CPLANE1:p.Gln793* (chr5-37224655-G-A) – ACMG Classification: Pathogenic (18 pts)

Variant summary

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

The NM_001384732.1(CPLANE1):c.2377C>T(p.Gln793*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000135 in 1,551,240 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 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000086 ( 0 hom. )

Consequence

CPLANE1
NM_001384732.1 stop_gained

Scores

Clinical Significance

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

Conservation

PhyloP100: 1.36

Publications

3 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, G2P, Labcorp Genetics (formerly Invitae), ClinGen, Illumina
orofaciodigital syndrome type 6
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae)
Joubert syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CPLANE1 links:

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 5-37224655-G-A is Pathogenic according to our data. Variant chr5-37224655-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 217583.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001384732.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CPLANE1	NM_001384732.1	MANE Select	c.2377C>T	p.Gln793*	stop_gained	Exon 13 of 53	NP_001371661.1	A0A494BZW6
	CPLANE1	NM_023073.4		c.2377C>T	p.Gln793*	stop_gained	Exon 13 of 52	NP_075561.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CPLANE1	ENST00000651892.2	MANE Select	c.2377C>T	p.Gln793*	stop_gained	Exon 13 of 53	ENSP00000498265.2	A0A494BZW6
CPLANE1	ENST00000955438.1		c.2377C>T	p.Gln793*	stop_gained	Exon 13 of 53	ENSP00000625497.1
CPLANE1	ENST00000508244.5	TSL:5	c.2377C>T	p.Gln793*	stop_gained	Exon 12 of 51	ENSP00000421690.1	Q9H799-1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152150

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000127

AC:

AN:

157372

AF XY:

0.0000120

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000327

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000858

AC:

AN:

1399090

Hom.:

Cov.:

AF XY:

0.0000101

AC XY:

AN XY:

690062

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31580

American (AMR)

AF:

0.00

AC:

AN:

35702

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25170

East Asian (EAS)

AF:

0.00

AC:

AN:

35660

South Asian (SAS)

AF:

0.00

AC:

AN:

79212

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49348

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.0000111

AC:

AN:

1078718

Other (OTH)

AF:

0.00

AC:

AN:

58006

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.429

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000592

AC:

AN:

152150

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74322

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41434

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.531

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000305

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000801

AC:

ClinVar

ClinVar submissions

Significance:Pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Joubert syndrome 17 (1)

not provided (1)

Orofaciodigital syndrome type 6;C3553264:Joubert syndrome 17 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.62

BayesDel_noAF

Uncertain

0.10

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

Eigen

Benign

0.085

Eigen_PC

Benign

-0.24

FATHMM_MKL

Benign

0.078

PhyloP100

1.4

Vest4

0.26

GERP RS

2.5

Mutation Taster

=0/200

disease causing (ClinVar)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over