rs148615988

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 3P and 3B. PM2PP3BP4_ModerateBS1_Supporting

The NM_001083961.2(WDR62):c.203T>C(p.Ile68Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000607 in 1,614,228 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

WDR62
NM_001083961.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: 7.05

Variant links:

Genes affected

WDR62 (HGNC:24502): (WD repeat domain 62) This gene is proposed to play a role in cerebral cortical development. Mutations in this gene have been associated with microencephaly, cortical malformations, and cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2011]

WDR62 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

Multiple lines of computational evidence support a deleterious effect 5: AlphaMissense, BayesDel_noAF, Cadd, PrimateAI, REVEL [when FATHMM_MKL, MetaRNN, MutationTaster was below the threshold]

BP4

Computational evidence support a benign effect (MetaRNN=0.22529003).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000308 (47/152372) while in subpopulation AFR AF= 0.00106 (44/41592). AF 95% confidence interval is 0.000809. There are 0 homozygotes in gnomad4. There are 19 alleles in male gnomad4 subpopulation. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WDR62	NM_001083961.2 linkuse as main transcript	c.203T>C	p.Ile68Thr	missense_variant	2/32	ENST00000401500.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WDR62	ENST00000401500.7 linkuse as main transcript	c.203T>C	p.Ile68Thr	missense_variant	2/32	1	NM_001083961.2	P4	O43379-4

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152254

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00106

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000875

AC:

AN:

251336

Hom.:

AF XY:

0.0000662

AC XY:

AN XY:

135878

show subpopulations

Gnomad AFR exome

AF:

0.00123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000349

AC:

AN:

1461856

Hom.:

Cov.:

AF XY:

0.0000289

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.00122

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.000308

AC:

AN:

152372

Hom.:

Cov.:

AF XY:

0.000255

AC XY:

AN XY:

74522

show subpopulations

Gnomad4 AFR

AF:

0.00106

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000703

Hom.:

Bravo

AF:

0.000412

ESP6500AA

AF:

0.000908

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000107

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:5Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Invitae	Jul 26, 2022	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jan 11, 2021	In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Oct 06, 2016	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Feb 07, 2023

Variant summary: WDR62 c.203T>C (p.Ile68Thr) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 8.8e-05 in 251336 control chromosomes. To our knowledge, no occurrence of c.203T>C in individuals affected with Primary Autosomal Recessive Microcephaly and no experimental evidence demonstrating its impact on protein function have been reported. Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 and classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 19, 2020

The c.203T>C (p.I68T) alteration is located in exon 2 (coding exon 2) of the WDR62 gene. This alteration results from a T to C substitution at nucleotide position 203, causing the isoleucine (I) at amino acid position 68 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Microcephaly 2, primary, autosomal recessive, with or without cortical malformations

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 31, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.91

BayesDel_addAF

Uncertain

0.069

BayesDel_noAF

Pathogenic

0.29

Cadd

Pathogenic

Dann

Uncertain

1.0

Eigen

Uncertain

0.60

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.97

D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.23

T;T;T

MetaSVM

Uncertain

-0.035

MutationAssessor

Uncertain

2.2

M;M;.

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Pathogenic

0.84

PROVEAN

Uncertain

-3.9

D;D;D

REVEL

Pathogenic

0.70

Sift

Uncertain

0.0020

D;D;D

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.82

MVP

0.85

MPC

0.92

ClinPred

0.29

GERP RS

5.6

Varity_R

0.64

gMVP

0.58

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