15-84643509-CAG-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_ModeratePM2PP5_Moderate

The NM_032856.5(WDR73):​c.1096_1097delCT​(p.Leu366fs) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000211 in 1,424,534 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

WDR73
NM_032856.5 frameshift

Scores

Not classified

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 7.28
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 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 0.0361 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 15-84643509-CAG-C is Pathogenic according to our data. Variant chr15-84643509-CAG-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1344892.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
WDR73NM_032856.5 linkuse as main transcriptc.1096_1097delCT p.Leu366fs frameshift_variant 8/8 ENST00000434634.7 NP_116245.2 Q6P4I2Q6PJL8Q5RKY8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
WDR73ENST00000434634.7 linkuse as main transcriptc.1096_1097delCT p.Leu366fs frameshift_variant 8/81 NM_032856.5 ENSP00000387982.3 Q6P4I2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000515
AC:
1
AN:
194106
Hom.:
0
AF XY:
0.00000964
AC XY:
1
AN XY:
103686
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000121
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000211
AC:
3
AN:
1424534
Hom.:
0
AF XY:
0.00000284
AC XY:
2
AN XY:
705028
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000123
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000183
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Galloway-Mowat syndrome 1 Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingDASAMar 05, 2022The c.1096_1097del;p.(Leu366Alafs*23) is a null frameshift variant (NMD) in the WDR73 gene and predicts alteration of the nonsense-mediate decay - NMD is present in a relevant exon to the transcript - PVS1_strong. This variant is not present in population databases (rs768820873- gnomAD; ABraOM no frequency - http://abraom.ib.usp.br.) - PM2. In summary, the currently available evidence indicates that the variant is likely pathogenic. -

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.

Other links and lift over

dbSNP: rs768820873; hg19: chr15-85186740; API