Genetic Variant WDR3:p.Arg264Leu (chr1-117941125-G-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_006784.3(WDR3):c.791G>T(p.Arg264Leu) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000684 in 1,461,778 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predicting alterations to normal splicing. 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. R264Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

WDR3
NM_006784.3 missense, splice_region

Scores

Splicing: ADA: 0.9814

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.94

Publications

0 publications found

Variant links:

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]

WDR3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006784.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WDR3	NM_006784.3	MANE Select	c.791G>T	p.Arg264Leu	missense splice_region	Exon 8 of 27	NP_006775.1	Q9UNX4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
WDR3	ENST00000349139.6	TSL:1 MANE Select	c.791G>T	p.Arg264Leu	missense splice_region	Exon 8 of 27	ENSP00000308179.4	Q9UNX4
WDR3	ENST00000369441.7	TSL:1	c.*678G>T		splice_region	Exon 9 of 10	ENSP00000358449.3	Q6PDA5
WDR3	ENST00000369441.7	TSL:1	c.*678G>T		3_prime_UTR	Exon 9 of 10	ENSP00000358449.3	Q6PDA5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461778

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727192

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86232

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111968

Other (OTH)

AF:

0.00

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Uncertain

0.16

BayesDel_noAF

Uncertain

-0.010

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.018

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.88

M_CAP

Benign

0.028

MetaRNN

Uncertain

0.59

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

PhyloP100

6.9

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-1.8

REVEL

Benign

0.16

Sift

Benign

0.26

Sift4G

Benign

0.20

Polyphen

0.83

Vest4

0.54

MutPred

0.43

Loss of solvent accessibility (P = 0.0299)

MVP

0.70

MPC

0.29

ClinPred

0.84

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.20

gMVP

0.69

Mutation Taster

=60/40

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

0.98

dbscSNV1_RF

Pathogenic

0.89

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over