NM_001384732.1:c.5738-6C>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001384732.1(CPLANE1):c.5738-6C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000323 in 1,593,982 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0017 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 1 hom. )

Consequence

CPLANE1
NM_001384732.1 splice_region, intron

Scores

Splicing: ADA: 0.00007168

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.971

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

CPLANE1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.95).

BP6

Variant 5-37179449-G-A is Benign according to our data. Variant chr5-37179449-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 196186.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00172 (262/152274) while in subpopulation AFR AF = 0.0059 (245/41548). AF 95% confidence interval is 0.00529. There are 2 homozygotes in GnomAd4. There are 126 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CPLANE1	NM_001384732.1 link	c.5738-6C>T		splice_region_variant, intron_variant	Intron 28 of 52	ENST00000651892.2	NP_001371661.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CPLANE1	ENST00000651892.2 link	c.5738-6C>T		splice_region_variant, intron_variant	Intron 28 of 52		NM_001384732.1	ENSP00000498265.2

Frequencies

GnomAD3 genomes

AF:

0.00172

AC:

262

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00591

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000851

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000959

GnomAD2 exomes

AF:

0.000489

AC:

119

AN:

243190

AF XY:

0.000358

show subpopulations

Gnomad AFR exome

AF:

0.00617

Gnomad AMR exome

AF:

0.000586

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000168

GnomAD4 exome

AF:

0.000175

AC:

253

AN:

1441708

Hom.:

Cov.:

AF XY:

0.000149

AC XY:

107

AN XY:

717870

show subpopulations

African (AFR)

AF:

0.00611

AC:

200

AN:

32738

American (AMR)

AF:

0.000586

AC:

AN:

42664

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25728

East Asian (EAS)

AF:

0.00

AC:

AN:

39506

South Asian (SAS)

AF:

0.0000120

AC:

AN:

83622

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53318

Middle Eastern (MID)

AF:

0.000350

AC:

AN:

5716

European-Non Finnish (NFE)

AF:

0.00000273

AC:

AN:

1098762

Other (OTH)

AF:

0.000369

AC:

AN:

59654

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.00172

AC:

262

AN:

152274

Hom.:

Cov.:

AF XY:

0.00169

AC XY:

126

AN XY:

74456

show subpopulations

African (AFR)

AF:

0.00590

AC:

245

AN:

41548

American (AMR)

AF:

0.000850

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68028

Other (OTH)

AF:

0.000949

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.00106

Hom.:

Bravo

AF:

0.00211

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:4

Dec 02, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Clinical Genetics, Academic Medical Center

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

not specified

Benign:1

Mar 02, 2015

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Joubert syndrome 17

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Inborn genetic diseases

Benign:1

Dec 16, 2021

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.95

CADD

Benign

0.24

(source)

DANN

Benign

0.42

PhyloP100

-0.97

Mutation Taster

=98/2

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000072

dbscSNV1_RF

Benign

0.46

SpliceAI score (max)

0.040

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over