chr14-102197836-G-GTAAC
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Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_StrongPM2
The ENST00000322340.9(WDR20):c.516_519dup(p.Val174AsnfsTer51) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Consequence
WDR20
ENST00000322340.9 frameshift
ENST00000322340.9 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 0.525
Genes affected
WDR20 (HGNC:19667): (WD repeat domain 20) This gene encodes a WD repeat-containing protein that functions to preserve and regulate the activity of the USP12-UAF1 deubiquitinating enzyme complex. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jun 2011]
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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 50 bp of the penultimate exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.126 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
WDR20 | NM_144574.4 | c.432+2718_432+2721dup | intron_variant | ENST00000342702.8 | NP_653175.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
WDR20 | ENST00000342702.8 | c.432+2718_432+2721dup | intron_variant | 1 | NM_144574.4 | ENSP00000341037 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 genomes
Cov.:
32
GnomAD4 exome Cov.: 0
GnomAD4 exome
Cov.:
0
GnomAD4 genome Cov.: 32
GnomAD4 genome
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Dolichocephaly;C0454644:Delayed speech and language development;C0557874:Global developmental delay Uncertain:1
Uncertain significance, criteria provided, single submitter | research | Human Genetics Section, Sidra Medicine | Jul 11, 2024 | A de novo mutation in an affected male with multiple congenital anomalies (list of phenotypes observed is under observations) and was absent from large population studies. Variant of uncertain significance (VUS) curated from https://franklin.genoox.com/clinical-db/variant/snp/chr14-102664173-G-GTAAC and Varsome. Clarification (23, July, 2024): Franklin and Varsome were utilized as supplementary tools; however, the patient exhibited a combination of phenotypes (see cases). Consequently, Whole Genome Sequencing (WGS) was performed, which identified the variant responsible for explaining the observed phenotypes. We are currently preparing the publication detailing these findings, and the PubMed ID (PMID) will be provided upon its release. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.