Genetic Variant NM_015910.7:c.68C>G (chr2-63588204-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015910.7(WDPCP):c.68C>G(p.Pro23Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000113 in 1,416,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P23Q) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

WDPCP
NM_015910.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.47

Variant links:

Genes affected

WDPCP (HGNC:28027): (WD repeat containing planar cell polarity effector) This gene encodes a cytoplasmic WD40 repeat protein. A similar gene in frogs encodes a planar cell polarity protein that plays a critical role in collective cell movement and ciliogenesis by mediating septin localization. Mutations in this gene are associated with Bardet-Biedl syndrome 15 and may also play a role in Meckel-Gruber syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

WDPCP links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.041005254).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDPCP	NM_015910.7 link	c.68C>G	p.Pro23Arg	missense_variant	Exon 1 of 18	ENST00000272321.12	NP_056994.3	O95876-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WDPCP	ENST00000272321.12 link	c.68C>G	p.Pro23Arg	missense_variant	Exon 1 of 18	1	NM_015910.7	ENSP00000272321.7		O95876-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.0000113

AC:

AN:

1416468

Hom.:

Cov.:

AF XY:

0.00000857

AC XY:

AN XY:

700394

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:

0.0000147

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Bardet-Biedl syndrome

Uncertain:1

Aug 09, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The arginine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. This sequence change replaces proline, which is neutral and non-polar, with arginine, which is basic and polar, at codon 23 of the WDPCP protein (p.Pro23Arg). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with WDPCP-related conditions. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.055

BayesDel_addAF

Benign

-0.081

BayesDel_noAF

Benign

-0.35

CADD

Benign

0.42

DANN

Benign

0.60

DEOGEN2

Benign

0.00058

T;.;.

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.0010

LIST_S2

Benign

0.33

T;T;T

M_CAP

Benign

0.024

MetaRNN

Benign

0.041

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

N;N;.

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.060

N;N;N

REVEL

Benign

0.14

Sift

Benign

0.83

T;T;T

Polyphen

0.0

B;.;.

Vest4

0.056

MutPred

0.16

Gain of MoRF binding (P = 0.0155);Gain of MoRF binding (P = 0.0155);Gain of MoRF binding (P = 0.0155);

MVP

0.24

MPC

0.12

ClinPred

0.046

GERP RS

-3.5

Varity_R

0.020

gMVP

0.19

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over