NM_032856.5:c.1132C>A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_032856.5(WDR73):c.1132C>A(p.Arg378Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00006 in 1,551,240 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R378H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000073 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000059 ( 0 hom. )

Consequence

WDR73
NM_032856.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.55

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: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.026088).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDR73	NM_032856.5 link	c.1132C>A	p.Arg378Ser	missense_variant	Exon 8 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.1132C>A	p.Arg378Ser	missense_variant	Exon 8 of 8	1	NM_032856.5	ENSP00000387982.3		Q6P4I2

Frequencies

GnomAD3 genomes

AF:

0.0000725

AC:

AN:

151698

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000993

AC:

AN:

161158

AF XY:

0.0000586

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000223

Gnomad OTH exome

AF:

0.000443

GnomAD4 exome

AF:

0.0000586

AC:

AN:

1399542

Hom.:

Cov.:

AF XY:

0.0000594

AC XY:

AN XY:

690748

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31886

American (AMR)

AF:

0.00

AC:

AN:

35892

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25180

East Asian (EAS)

AF:

0.00

AC:

AN:

36094

South Asian (SAS)

AF:

0.00

AC:

AN:

79438

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49768

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5204

European-Non Finnish (NFE)

AF:

0.0000724

AC:

AN:

1078034

Other (OTH)

AF:

0.0000689

AC:

AN:

58046

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000725

AC:

AN:

151698

Hom.:

Cov.:

AF XY:

0.0000540

AC XY:

AN XY:

74118

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41186

American (AMR)

AF:

0.00

AC:

AN:

15260

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

312

European-Non Finnish (NFE)

AF:

0.000162

AC:

AN:

67856

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.552

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000387

Hom.:

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000234

AC:

ExAC

AF:

0.0000606

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with serine, which is neutral and polar, at codon 378 of the WDR73 protein (p.Arg378Ser). This variant is present in population databases (rs376622127, gnomAD 0.02%). 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: 1911057). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Possibly Damaging". The serine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.69

CADD

Benign

0.24

(source)

DANN

Benign

0.83

DEOGEN2

Benign

0.00057

Eigen

Benign

-1.8

Eigen_PC

Benign

-1.9

FATHMM_MKL

Benign

0.071

LIST_S2

Benign

0.27

M_CAP

Benign

0.018

MetaRNN

Benign

0.026

MetaSVM

Benign

-0.95

MutationAssessor

Benign

0.0

PhyloP100

-1.6

PrimateAI

Benign

0.21

PROVEAN

Benign

0.090

REVEL

Benign

0.054

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.0

Vest4

0.050

MVP

0.055

MPC

0.098

ClinPred

0.079

GERP RS

-12

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.078

gMVP

0.33

Mutation Taster

=96/4

polymorphism

(source)

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

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NM_032856.5:c.1132C>A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over