rs139946168

Variant names:

• chr19-36103440-C-T
• rs139946168
• NM_001083961.2:c.3612C>T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP6 BS1 BS2

The NM_001083961.2(WDR62):​c.3612C>T​(p.Gly1204Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000837 in 1,614,132 control chromosomes in the GnomAD database, including 3 homozygotes. 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 0.00070 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00085 (3 hom.)
• Consequence: WDR62 NM_001083961.2 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:4
• Conservation: PhyloP100: 0.273

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]

ACMG classification

Verdict is Benign. Variant got -9 ACMG points.

• BP6: Variant 19-36103440-C-T is Benign according to our data. Variant chr19-36103440-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 212604.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=4, Uncertain_significance=2}.
• BS1: Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000696 (106/152262) while in subpopulation SAS AF= 0.00104 (5/4826). AF 95% confidence interval is 0.000703. There are 0 homozygotes in gnomad4. There are 52 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDR62	NM_001083961.2	c.3612C>T	p.Gly1204Gly	synonymous_variant	Exon 30 of 32	ENST00000401500.7	NP_001077430.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WDR62	ENST00000401500.7	c.3612C>T	p.Gly1204Gly	synonymous_variant	Exon 30 of 32	1	NM_001083961.2	ENSP00000384792.1

Frequencies

GnomAD3 genomes AF: 0.000697 AC: 106 AN: 152146 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000169

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000589

Gnomad ASJ AF: 0.00231

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00104

Gnomad FIN AF: 0.000659

Gnomad MID AF: 0.0127

Gnomad NFE AF: 0.000882

Gnomad OTH AF: 0.00287

GnomAD3 exomes AF: 0.000955 AC: 240 AN: 251384 Hom.: 1 AF XY: 0.00110 AC XY: 149 AN XY: 135892

Gnomad AFR exome AF: 0.000185

Gnomad AMR exome AF: 0.00104

Gnomad ASJ exome AF: 0.00218

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00124

Gnomad FIN exome AF: 0.000601

Gnomad NFE exome AF: 0.00106

Gnomad OTH exome AF: 0.00130

GnomAD4 exome AF: 0.000852 AC: 1245 AN: 1461870 Hom.: 3 Cov.: 34 AF XY: 0.000862 AC XY: 627 AN XY: 727230

Gnomad4 AFR exome AF: 0.0000896

Gnomad4 AMR exome AF: 0.00101

Gnomad4 ASJ exome AF: 0.00214

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00102

Gnomad4 FIN exome AF: 0.000618

Gnomad4 NFE exome AF: 0.000827

Gnomad4 OTH exome AF: 0.000944

GnomAD4 genome AF: 0.000696 AC: 106 AN: 152262 Hom.: 0 Cov.: 33 AF XY: 0.000698 AC XY: 52 AN XY: 74454

Gnomad4 AFR AF: 0.000168

Gnomad4 AMR AF: 0.000588

Gnomad4 ASJ AF: 0.00231

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00104

Gnomad4 FIN AF: 0.000659

Gnomad4 NFE AF: 0.000882

Gnomad4 OTH AF: 0.00284

Alfa AF: 0.000869 Hom.: 0

Bravo AF: 0.000691

Asia WGS AF: 0.000577 AC: 2 AN: 3478

EpiCase AF: 0.00191

EpiControl AF: 0.00172

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2 Benign:4

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1 Benign:3

Aug 24, 2015

Eurofins Ntd Llc (ga)

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 23, 2019

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 27, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Aug 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

WDR62: BP4, BP7 -

Microcephaly 2, primary, autosomal recessive, with or without cortical malformations Uncertain:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not specified Benign:1

Jan 18, 2019

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.48
CADD	Benign	14
DANN	Benign	0.49
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.28		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.28		Position offset: -1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs139946168; hg19: chr19-36594342;