Genetic Variant WDR73:p.Tyr43* (chr15-84652783-A-C) – ACMG Classification: Pathogenic (11 pts)

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_032856.5(WDR73):c.129T>G(p.Tyr43*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000723 in 1,383,716 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

WDR73
NM_032856.5 stop_gained

Scores

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 1.56

Publications

2 publications found

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 Gene-Disease associations (from GenCC):

Galloway-Mowat syndrome 1
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
CAMOS syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Galloway-Mowat syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

WDR73 links:

ENSG00000291159 (HGNC:):

ENSG00000291159 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 15-84652783-A-C is Pathogenic according to our data. Variant chr15-84652783-A-C is described in ClinVar as Pathogenic. ClinVar VariationId is 162610.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDR73	NM_032856.5 link	c.129T>G	p.Tyr43*	stop_gained	Exon 3 of 8	ENST00000434634.7	NP_116245.2	Q6P4I2Q6PJL8Q5RKY8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WDR73	ENST00000434634.7 link	c.129T>G	p.Tyr43*	stop_gained	Exon 3 of 8	1	NM_032856.5	ENSP00000387982.3		Q6P4I2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.23e-7

AC:

AN:

1383716

Hom.:

Cov.:

AF XY:

0.00000147

AC XY:

AN XY:

681382

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

30930

American (AMR)

AF:

0.00

AC:

AN:

32704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24872

East Asian (EAS)

AF:

0.00

AC:

AN:

35384

South Asian (SAS)

AF:

0.0000132

AC:

AN:

75738

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48970

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5658

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1071998

Other (OTH)

AF:

0.00

AC:

AN:

57462

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Galloway-Mowat syndrome 1

Pathogenic:1

Dec 04, 2014

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.62

BayesDel_noAF

Pathogenic

0.57

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.41

FATHMM_MKL

Uncertain

0.84

PhyloP100

1.6

Vest4

0.34

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=13/187

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over