Genetic Variant WDR49:p.Cys851Arg (chr3-167527873-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001366157.1(WDR49):c.2551T>C(p.Cys851Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,613,168 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

WDR49
NM_001366157.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.05

Variant links:

Genes affected

WDR49 (HGNC:26587): (WD repeat domain 49) This gene encodes a member of the WD repeat protein family with nine WD repeats. 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. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2017]

WDR49 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
WDR49	NM_001366157.1 link	c.2551T>C	p.Cys851Arg	missense_variant	Exon 15 of 19	ENST00000682715.1	NP_001353086.1
WDR49	NM_001348951.2 link	c.2518T>C	p.Cys840Arg	missense_variant	Exon 15 of 19		NP_001335880.1
WDR49	NM_001348952.2 link	c.2518T>C	p.Cys840Arg	missense_variant	Exon 15 of 19		NP_001335881.1
WDR49	NM_001366158.1 link	c.1495T>C	p.Cys499Arg	missense_variant	Exon 12 of 16		NP_001353087.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WDR49	ENST00000682715.1 link	c.2551T>C	p.Cys851Arg	missense_variant	Exon 15 of 19		NM_001366157.1	ENSP00000507497.1		A0A804HJG6

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000160

AC:

AN:

250308

Hom.:

AF XY:

0.0000296

AC XY:

AN XY:

135272

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000171

AC:

AN:

1460950

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

726774

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.000220

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74420

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 23, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1495T>C (p.C499R) alteration is located in exon 11 (coding exon 10) of the WDR49 gene. This alteration results from a T to C substitution at nucleotide position 1495, causing the cysteine (C) at amino acid position 499 to be replaced by an arginine (R). 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

0.11

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.077

T;.

Eigen

Benign

0.17

Eigen_PC

Benign

0.12

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.43

T;T

M_CAP

Benign

0.030

MetaRNN

Uncertain

0.44

T;T

MetaSVM

Benign

-0.92

MutationAssessor

Uncertain

2.5

M;.

PrimateAI

Uncertain

0.50

PROVEAN

Pathogenic

-6.2

D;.

REVEL

Benign

0.24

Sift

Benign

0.053

T;.

Sift4G

Uncertain

0.030

D;.

Polyphen

0.99

D;.

Vest4

0.46

MutPred

0.54

Gain of disorder (P = 0.0906);.;

MVP

0.62

MPC

0.24

ClinPred

0.89

GERP RS

2.9

Varity_R

0.38

gMVP

0.44

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over