NM_001083961.2:c.2211-4G>A

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_001083961.2(WDR62):​c.2211-4G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00102 in 1,614,046 control chromosomes in the GnomAD database, including 1 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00077 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0010 ( 1 hom. )

Consequence

WDR62
NM_001083961.2 splice_region, intron

Scores

2
Splicing: ADA: 0.00001011
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:4

Conservation

PhyloP100: 0.0840

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • microcephaly 2, primary, autosomal recessive, with or without cortical malformations
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, Ambry Genetics, Illumina, G2P, ClinGen
  • autosomal recessive primary microcephaly
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 19-36092685-G-A is Benign according to our data. Variant chr19-36092685-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 160262.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000775 (118/152320) while in subpopulation AMR AF = 0.0017 (26/15306). AF 95% confidence interval is 0.00119. There are 0 homozygotes in GnomAd4. There are 57 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
WDR62NM_001083961.2 linkc.2211-4G>A splice_region_variant, intron_variant Intron 18 of 31 ENST00000401500.7 NP_001077430.1 O43379-4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
WDR62ENST00000401500.7 linkc.2211-4G>A splice_region_variant, intron_variant Intron 18 of 31 1 NM_001083961.2 ENSP00000384792.1 O43379-4

Frequencies

GnomAD3 genomes
AF:
0.000775
AC:
118
AN:
152202
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000386
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00170
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00103
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.000509
AC:
128
AN:
251394
AF XY:
0.000508
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000897
Gnomad OTH exome
AF:
0.000978
GnomAD4 exome
AF:
0.00104
AC:
1526
AN:
1461726
Hom.:
1
Cov.:
31
AF XY:
0.00101
AC XY:
734
AN XY:
727172
show subpopulations
African (AFR)
AF:
0.000239
AC:
8
AN:
33476
American (AMR)
AF:
0.000470
AC:
21
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.000115
AC:
3
AN:
26124
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.000348
AC:
30
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53400
Middle Eastern (MID)
AF:
0.000347
AC:
2
AN:
5768
European-Non Finnish (NFE)
AF:
0.00123
AC:
1367
AN:
1111920
Other (OTH)
AF:
0.00157
AC:
95
AN:
60382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
92
183
275
366
458
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
60
120
180
240
300
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000775
AC:
118
AN:
152320
Hom.:
0
Cov.:
33
AF XY:
0.000765
AC XY:
57
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.000385
AC:
16
AN:
41564
American (AMR)
AF:
0.00170
AC:
26
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5180
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00103
AC:
70
AN:
68032
Other (OTH)
AF:
0.00142
AC:
3
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
5
10
16
21
26
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000644
Hom.:
0
Bravo
AF:
0.000816
EpiCase
AF:
0.000436
EpiControl
AF:
0.000771

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:3
Feb 20, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nov 24, 2015
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nov 28, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

WDR62: BP4 -

Inborn genetic diseases Uncertain:1
Oct 06, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.2211-4G>A intronic alteration consists of a G to A substitution 4 nucleotides before exon 19 of the WDR62 gene. 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
Jan 13, 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. -

Intellectual disability Uncertain:1
Jan 01, 2019
Centre de Biologie Pathologie Génétique, Centre Hospitalier Universitaire de Lille
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not specified Benign:1
Jul 08, 2013
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
-0.78
CADD
Benign
1.3
DANN
Benign
0.66
PhyloP100
0.084
PromoterAI
-0.0096
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000010
dbscSNV1_RF
Benign
0.0040
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

Other links and lift over

dbSNP: rs202109439; hg19: chr19-36583587; API