Variant 15-84643474-CG-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PVS1_ModerateBS2

The NM_032856.5(WDR73):c.1132delC(p.Arg378fs) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00103 in 1,553,860 control chromosomes in the GnomAD database, including 2 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00062 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0011 ( 2 hom. )

Consequence

WDR73
NM_032856.5 frameshift

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:4

Conservation

PhyloP100: -1.55

Variant links:

Genes affected

WDR73 (HGNC:25928): (WD repeat domain 73) The protein encoded by this gene is thought to contain multiple WD40 repeats. WD40 repeats are motifs that contain 40-60 amino acids, and usually end with Trp-Asp (WD). This protein is found in the cytoplasm during interphase, but accumulates at the spindle poles and astral microtubules during mitosis. Reduced expression of this gene results in abnormalities in the size and morphology of the nucleus. Mutations in this gene have been associated with Galloway-Mowat syndrome PMID: 25466283), which is a rare autosomal recessive disorder that affects both the central nervous system and kidneys. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2015]

WDR73 links:

ENSG00000291159 (HGNC:):

ENSG00000291159 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PVS1

Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.0044 CDS is truncated, and there are 0 pathogenic variants in the truncated region.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
WDR73	NM_032856.5 linkuse as main transcript	c.1132delC	p.Arg378fs	frameshift_variant	8/8	ENST00000434634.7	NP_116245.2	Q6P4I2Q6PJL8Q5RKY8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
WDR73	ENST00000434634.7 linkuse as main transcript	c.1132delC	p.Arg378fs	frameshift_variant	8/8	1	NM_032856.5	ENSP00000387982.3		Q6P4I2

Frequencies

GnomAD3 genomes

AF:

0.000618

AC:

AN:

152076

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.00118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000613

AC:

AN:

159916

Hom.:

AF XY:

0.000614

AC XY:

AN XY:

84636

show subpopulations

Gnomad AFR exome

AF:

0.000116

Gnomad AMR exome

AF:

0.000442

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000130

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00132

Gnomad OTH exome

AF:

0.000223

GnomAD4 exome

AF:

0.00108

AC:

1514

AN:

1401666

Hom.:

Cov.:

AF XY:

0.00104

AC XY:

716

AN XY:

691668

show subpopulations

Gnomad4 AFR exome

AF:

0.0000942

Gnomad4 AMR exome

AF:

0.000279

Gnomad4 ASJ exome

AF:

0.0000397

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000151

Gnomad4 FIN exome

AF:

0.0000201

Gnomad4 NFE exome

AF:

0.00133

Gnomad4 OTH exome

AF:

0.000809

GnomAD4 genome

AF:

0.000618

AC:

AN:

152194

Hom.:

Cov.:

AF XY:

0.000470

AC XY:

AN XY:

74406

show subpopulations

Gnomad4 AFR

AF:

0.000193

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000655

Hom.:

Bravo

AF:

0.000672

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Pathogenic:1Uncertain:2

Likely pathogenic, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Sep 01, 2016	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jun 22, 2016	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Oct 25, 2022	This sequence change results in a frameshift in the WDR73 gene (p.Arg378Alafs*25). While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 1 amino acid(s) of the WDR73 protein and extend the protein by 23 additional amino acid residues. This variant is present in population databases (rs775472894, gnomAD 0.1%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with WDR73-related conditions. ClinVar contains an entry for this variant (Variation ID: 286399). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

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

Sep 10, 2024

Variant summary: WDR73 c.1132delC (p.Arg378AlafsX25) causes a frameshift which results in an extension of the protein. The variant allele was found at a frequency of 0.001 in 1553860 control chromosomes in the gnomAD database, including 2 homozygotes. c.1132delC has been reported in the homozygous state in a consanguineous couple who had a deceased daughter, however, other pathogenic variants were also reported (IGHMPB2, DYNC2H1) and mimimal phenotype data was provided (Sallevelt_2021). This report does not provide unequivocal conclusions about association of the variant with Galloway-Mowat Syndrome 1. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 33742171). ClinVar contains an entry for this variant (Variation ID: 286399). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Galloway-Mowat syndrome 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

May 09, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

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