chrX-49074878-G-GACA

Position:

• chrX-49074878-G-GACA

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PM4_Supporting PP3 PP5

The NM_001029896.2(WDR45):​c.1007_1008insTGT​(p.Val336_Phe336insVal) variant causes a inframe insertion change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (no stars).

• Frequency: Genomes: not found (cov: 24)
• Consequence: WDR45 NM_001029896.2 inframe_insertion
• Clinical Significance: Likely pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 8.41

Genes affected

WDR45 (HGNC:28912): (WD repeat domain 45) This gene encodes a member of the WD repeat protein family. WD repeats are minimally conserved regions of approximately 40 amino acids typically bracketed by gly-his and trp-asp (GH-WD), which may facilitate formation of heterotrimeric or multiprotein complexes. Members of this family are involved in a variety of cellular processes, including cell cycle progression, signal transduction, apoptosis, and gene regulation. This gene has a pseudogene at chromosome 4q31.3. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene, but the biological validity and full-length nature of some variants have not been determined. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_001029896.2. Strenght limited to Supporting due to length of the change: 1aa.
• PP3: No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
• PP5: Variant X-49074878-G-GACA is Pathogenic according to our data. Variant chrX-49074878-G-GACA is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3338068.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WDR45	NM_001029896.2	c.1007_1008insTGT	p.Val336_Phe336insVal	inframe_insertion	11/11	ENST00000376372.9
WDR45	NM_007075.4	c.1010_1011insTGT	p.Val337_Phe337insVal	inframe_insertion	12/12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WDR45	ENST00000376372.9	c.1007_1008insTGT	p.Val336_Phe336insVal	inframe_insertion	11/11	1	NM_001029896.2	P4

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 24

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Neurodegeneration with brain iron accumulation 5 Pathogenic:1

Likely pathogenic, no assertion criteria provided

provider interpretation

Solve-RD Consortium

Jun 01, 2022

Variant confirmed as disease-causing by referring clinical team -

Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-48932537;