1-117933447-C-G

Variant names:

• chr1-117933447-C-G
• rs904180684
• NM_006784.3:c.128C>G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_006784.3(WDR3):​c.128C>G​(p.Ala43Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: WDR3 NM_006784.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.51

Genes affected

WDR3 (HGNC:12755): (WD repeat domain 3) This gene encodes a nuclear protein containing 10 WD repeats. WD repeats are approximately 30- to 40-amino acid domains containing several conserved residues, which usually include a trp-asp at the C-terminal end. Proteins belonging to the WD repeat family are involved in a variety of cellular processes, including cell cycle progression, signal transduction, apoptosis, and gene regulation. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.779

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDR3	NM_006784.3	c.128C>G	p.Ala43Gly	missense_variant	Exon 2 of 27	ENST00000349139.6	NP_006775.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WDR3	ENST00000349139.6	c.128C>G	p.Ala43Gly	missense_variant	Exon 2 of 27	1	NM_006784.3	ENSP00000308179.4
WDR3	ENST00000369441.7	c.70+58C>G		intron_variant	Intron 2 of 9	1		ENSP00000358449.3
WDR3	ENST00000471680.1	n.310C>G		non_coding_transcript_exon_variant	Exon 2 of 5	5
WDR3	ENST00000487202.5	n.161+58C>G		intron_variant	Intron 2 of 5	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Dec 16, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.128C>G (p.A43G) alteration is located in exon 2 (coding exon 1) of the WDR3 gene. This alteration results from a C to G substitution at nucleotide position 128, causing the alanine (A) at amino acid position 43 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Benign	0.20	T
Eigen	Pathogenic	0.76
Eigen_PC	Pathogenic	0.73
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.93	D
M_CAP	Uncertain	0.14	D
MetaRNN	Pathogenic	0.78	D
MetaSVM	Uncertain	0.071	D
MutationAssessor	Benign	1.9	L
PrimateAI	Uncertain	0.67	T
PROVEAN	Uncertain	-3.3	D
REVEL	Pathogenic	0.71
Sift	Uncertain	0.025	D
Sift4G	Benign	0.099	T
Polyphen		1.0	D
Vest4		0.61
MutPred		0.78		Loss of stability (P = 0.2146);
MVP		0.92
MPC		0.54
ClinPred		0.98	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.55
gMVP		0.41

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.10		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

Other links and lift over

dbSNP: rs904180684; hg19: chr1-118476070;