rs138928852

Positions:

chr19-36094025-C-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001083961.2(WDR62):c.2334-6C>A variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000785 in 1,613,758 control chromosomes in the GnomAD database, including 10 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 Benign (★★).

Frequency

Genomes: 𝑓 0.0042 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00043 ( 6 hom. )

Consequence

WDR62
NM_001083961.2 splice_region, splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.0008892

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.112

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 Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.83).

BP6

Variant 19-36094025-C-A is Benign according to our data. Variant chr19-36094025-C-A is described in ClinVar as [Benign]. Clinvar id is 160266.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-36094025-C-A is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00422 (642/152294) while in subpopulation AFR AF= 0.015 (622/41566). AF 95% confidence interval is 0.014. There are 4 homozygotes in gnomad4. There are 314 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WDR62	NM_001083961.2 linkuse as main transcript	c.2334-6C>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000401500.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WDR62	ENST00000401500.7 linkuse as main transcript	c.2334-6C>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_001083961.2	P4	O43379-4

Frequencies

GnomAD3 genomes

AF:

0.00421

AC:

641

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0150

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000917

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.00107

AC:

268

AN:

251494

Hom.:

AF XY:

0.000684

AC XY:

AN XY:

135922

show subpopulations

Gnomad AFR exome

AF:

0.0154

Gnomad AMR exome

AF:

0.000434

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000428

AC:

625

AN:

1461464

Hom.:

Cov.:

AF XY:

0.000362

AC XY:

263

AN XY:

727022

show subpopulations

Gnomad4 AFR exome

AF:

0.0156

Gnomad4 AMR exome

AF:

0.000693

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:

0.0000162

Gnomad4 OTH exome

AF:

0.000828

GnomAD4 genome

AF:

0.00422

AC:

642

AN:

152294

Hom.:

Cov.:

AF XY:

0.00422

AC XY:

314

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.0150

Gnomad4 AMR

AF:

0.000916

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.00190

Hom.:

Bravo

AF:

0.00476

ClinVar

Significance: Benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Apr 18, 2018	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 02, 2018	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 22, 2024	- -

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

Benign:2

Benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Dec 05, 2021	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	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. -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Dec 03, 2015

- -

WDR62-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Apr 17, 2020

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.83

CADD

Benign

6.2

DANN

Benign

0.59

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00089

dbscSNV1_RF

Benign

0.098

SpliceAI score (max)

0.090

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