dbSNP rs143309981: WDR62:c.1642+8C>T (chr19-36084752-C-T) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001083961.2(WDR62):c.1642+8C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00887 in 1,612,156 control chromosomes in the GnomAD database, including 156 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 0.010 ( 12 hom., cov: 31)

Exomes 𝑓: 0.0087 ( 144 hom. )

Consequence

WDR62
NM_001083961.2 splice_region, intron

Scores

Splicing: ADA: 0.00008223

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -2.00

Publications

2 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), Illumina, Ambry Genetics, Laboratory for Molecular Medicine, G2P, ClinGen
autosomal recessive primary microcephaly
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

WDR62 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.87).

BP6

Variant 19-36084752-C-T is Benign according to our data. Variant chr19-36084752-C-T is described in ClinVar as Benign. ClinVar VariationId is 137907.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.0105 (1595/152062) while in subpopulation SAS AF = 0.0418 (201/4812). AF 95% confidence interval is 0.037. There are 12 homozygotes in GnomAd4. There are 834 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 12 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001083961.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
WDR62	NM_001083961.2	MANE Select	c.1642+8C>T	splice_region intron	N/A	NP_001077430.1	O43379-4
WDR62	NM_001411145.1		c.1627+8C>T	splice_region intron	N/A	NP_001398074.1	A0A7P0TAK3
WDR62	NM_173636.5		c.1642+8C>T	splice_region intron	N/A	NP_775907.4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
WDR62	ENST00000401500.7	TSL:1 MANE Select	c.1642+8C>T	splice_region intron	N/A	ENSP00000384792.1	O43379-4
WDR62	ENST00000587391.6	TSL:1	n.*332+8C>T	splice_region intron	N/A	ENSP00000465525.1	O43379-2
WDR62	ENST00000679714.1		c.1636+8C>T	splice_region intron	N/A	ENSP00000506627.1	A0A7P0TBE7

Frequencies

GnomAD3 genomes

AF:

0.0105

AC:

1595

AN:

151944

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0166

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00709

Gnomad ASJ

AF:

0.0291

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.0413

Gnomad FIN

AF:

0.00161

Gnomad MID

AF:

0.0222

Gnomad NFE

AF:

0.00657

Gnomad OTH

AF:

0.0148

GnomAD2 exomes

AF:

0.0110

AC:

2760

AN:

249840

AF XY:

0.0127

show subpopulations

Gnomad AFR exome

AF:

0.0164

Gnomad AMR exome

AF:

0.00454

Gnomad ASJ exome

AF:

0.0250

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00205

Gnomad NFE exome

AF:

0.00702

Gnomad OTH exome

AF:

0.0133

GnomAD4 exome

AF:

0.00870

AC:

12701

AN:

1460094

Hom.:

144

Cov.:

AF XY:

0.00976

AC XY:

7089

AN XY:

726302

show subpopulations

African (AFR)

AF:

0.0189

AC:

633

AN:

33464

American (AMR)

AF:

0.00494

AC:

221

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.0261

AC:

683

AN:

26134

East Asian (EAS)

AF:

0.000151

AC:

AN:

39698

South Asian (SAS)

AF:

0.0401

AC:

3455

AN:

86228

European-Finnish (FIN)

AF:

0.00243

AC:

127

AN:

52158

Middle Eastern (MID)

AF:

0.0267

AC:

150

AN:

5616

European-Non Finnish (NFE)

AF:

0.00606

AC:

6742

AN:

1111740

Other (OTH)

AF:

0.0113

AC:

684

AN:

60342

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

699

1398

2096

2795

3494

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

274

548

822

1096

1370

<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:

0.0105

AC:

1595

AN:

152062

Hom.:

Cov.:

AF XY:

0.0112

AC XY:

834

AN XY:

74312

show subpopulations

African (AFR)

AF:

0.0165

AC:

685

AN:

41478

American (AMR)

AF:

0.00708

AC:

108

AN:

15260

Ashkenazi Jewish (ASJ)

AF:

0.0291

AC:

101

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5154

South Asian (SAS)

AF:

0.0418

AC:

201

AN:

4812

European-Finnish (FIN)

AF:

0.00161

AC:

AN:

10570

Middle Eastern (MID)

AF:

0.0204

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00657

AC:

447

AN:

68000

Other (OTH)

AF:

0.0142

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

142

213

284

355

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

110

<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:

0.00976

Hom.:

Bravo

AF:

0.0106

Asia WGS

AF:

0.0140

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (5)

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

not specified (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

0.34

(source)

DANN

Benign

0.55

PhyloP100

-2.0

PromoterAI

-0.0018

Neutral

(source)

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000082

dbscSNV1_RF

Benign

0.0060

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over