NM_001029896.2:c.397C>G

Variant names:

• chrX-49076469-G-C
• rs797046101
• NM_001029896.2:c.397C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001029896.2(WDR45):​c.397C>G​(p.Arg133Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000911 in 1,098,130 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R133Q) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 9.1e-7 (0 hom. 0 hem.)
• Consequence: WDR45 NM_001029896.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.25
• Publications: 0 publications found

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]

WDR45 Gene-Disease associations (from GenCC):

• neurodegeneration with brain iron accumulation 5

  Inheritance: XL Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Illumina, Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp, G2P
• X-linked complex neurodevelopmental disorder

  Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
• infantile spasms

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000288053 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.21925968).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDR45	NM_001029896.2	c.397C>G	p.Arg133Gly	missense_variant	Exon 6 of 11	ENST00000376372.9	NP_001025067.1
WDR45	NM_007075.4	c.400C>G	p.Arg134Gly	missense_variant	Exon 7 of 12		NP_009006.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WDR45	ENST00000376372.9	c.397C>G	p.Arg133Gly	missense_variant	Exon 6 of 11	1	NM_001029896.2	ENSP00000365551.3
ENSG00000288053	ENST00000376358.4	c.131-524C>G		intron_variant	Intron 3 of 7	2		ENSP00000365536.3

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome AF: 9.11e-7 AC: 1 AN: 1098130 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 363516

African (AFR) AF: 0.00 AC: 0 AN: 26399

American (AMR) AF: 0.00 AC: 0 AN: 35199

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19385

East Asian (EAS) AF: 0.00 AC: 0 AN: 30206

South Asian (SAS) AF: 0.00 AC: 0 AN: 54142

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40531

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4067

European-Non Finnish (NFE) AF: 0.00000119 AC: 1 AN: 842116

Other (OTH) AF: 0.00 AC: 0 AN: 46085

GnomAD4 genome Cov.: 23

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
BayesDel_addAF	Benign	-0.032	T
BayesDel_noAF	Benign	-0.28
CADD	Benign	20
DANN	Uncertain	0.98
DEOGEN2	Benign	0.23	T;T;.;.;.;.;T;.;T;T;T;.;T;T;.;.;T;T
FATHMM_MKL	Benign	0.23	N
LIST_S2	Uncertain	0.94	.;D;D;D;.;D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP	Benign	0.056	D
MetaRNN	Benign	0.22	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.64	T
MutationAssessor	Benign	1.7	L;L;.;L;.;.;.;.;.;.;.;.;.;.;.;.;.;.
PhyloP100		2.2
PrimateAI	Benign	0.47	T
PROVEAN	Uncertain	-2.9	D;.;.;D;D;D;D;D;.;.;D;.;D;.;.;D;D;.
REVEL	Benign	0.26
Sift	Benign	0.096	T;.;.;T;T;T;D;T;.;.;T;.;D;.;.;T;D;.
Sift4G	Benign	0.19	T;T;T;T;T;T;T;T;T;.;.;.;.;.;T;.;.;.
Polyphen		0.0010	B;B;.;B;B;B;B;B;.;.;.;.;.;.;.;.;.;.
Vest4		0.39
MutPred		0.41		Gain of ubiquitination at K134 (P = 0.0516);Gain of ubiquitination at K134 (P = 0.0516);Gain of ubiquitination at K134 (P = 0.0516);Gain of ubiquitination at K134 (P = 0.0516);.;.;Gain of ubiquitination at K134 (P = 0.0516);.;.;.;.;Gain of ubiquitination at K134 (P = 0.0516);.;.;Gain of ubiquitination at K134 (P = 0.0516);.;Gain of ubiquitination at K134 (P = 0.0516);.;
MVP		0.38
MPC		0.85
ClinPred		0.18	T
GERP RS		2.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.22
gMVP		0.51
Mutation Taster		=56/44	polymorphism

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

Other links and lift over

dbSNP: rs797046101; hg19: chrX-48934128;