Genetic Variant CPLANE1:p.Gly126Gly (chr5-37244567-C-T) – ACMG Classification: Benign (-19 pts)

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_001384732.1(CPLANE1):c.378G>A(p.Gly126Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00531 in 1,551,234 control chromosomes in the GnomAD database, including 402 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.028 ( 218 hom., cov: 31)

Exomes 𝑓: 0.0028 ( 184 hom. )

Consequence

CPLANE1
NM_001384732.1 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.150

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 Benign. Variant got -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.39).

BP6

Variant 5-37244567-C-T is Benign according to our data. Variant chr5-37244567-C-T is described in ClinVar as [Benign]. Clinvar id is 158032.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.15 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0955 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CPLANE1	NM_001384732.1 link	c.378G>A	p.Gly126Gly	synonymous_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.378G>A	p.Gly126Gly	synonymous_variant	Exon 5 of 53		NM_001384732.1	ENSP00000498265.2	A0A494BZW6
CPLANE1	ENST00000508244.5 link	c.378G>A	p.Gly126Gly	synonymous_variant	Exon 4 of 51	5		ENSP00000421690.1	Q9H799-1
CPLANE1	ENST00000425232.7 link	n.159G>A		non_coding_transcript_exon_variant	Exon 2 of 30	5		ENSP00000389014.3	A0A7I2XYG4
CPLANE1	ENST00000675547.1 link	n.640+912G>A		intron_variant	Intron 2 of 14

Frequencies

GnomAD3 genomes

AF:

0.0283

AC:

4306

AN:

151908

Hom.:

218

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0981

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0123

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000624

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.0240

GnomAD3 exomes

AF:

0.00624

AC:

977

AN:

156536

Hom.:

AF XY:

0.00451

AC XY:

374

AN XY:

82940

show subpopulations

Gnomad AFR exome

AF:

0.104

Gnomad AMR exome

AF:

0.00516

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000308

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000990

Gnomad OTH exome

AF:

0.00182

GnomAD4 exome

AF:

0.00281

AC:

3929

AN:

1399208

Hom.:

184

Cov.:

AF XY:

0.00235

AC XY:

1625

AN XY:

690128

show subpopulations

Gnomad4 AFR exome

AF:

0.104

Gnomad4 AMR exome

AF:

0.00586

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000265

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000436

Gnomad4 OTH exome

AF:

0.00633

GnomAD4 genome

AF:

0.0284

AC:

4312

AN:

152026

Hom.:

218

Cov.:

AF XY:

0.0272

AC XY:

2019

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.0980

Gnomad4 AMR

AF:

0.0123

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000625

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.0237

Alfa

AF:

0.0132

Hom.:

Bravo

AF:

0.0334

Asia WGS

AF:

0.00549

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Oct 19, 2016

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Joubert syndrome 17

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: 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 benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.39

CADD

Benign

5.2

DANN

Benign

0.66

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