rs74470618

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_001006657.2(WDR35):c.2099G>A(p.Arg700His) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000381 in 1,613,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R700C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

WDR35
NM_001006657.2 missense, splice_region

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:5

Conservation

PhyloP100: 4.98

Publications

6 publications found

Variant links:

Genes affected

WDR35 (HGNC:29250): (WD repeat domain 35) 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. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. Two patients with Sensenbrenner syndrome / cranioectodermal dysplasia (CED) were identified with mutations in this gene, consistent with a possible ciliary function.[provided by RefSeq, Sep 2010]

WDR35 Gene-Disease associations (from GenCC):

cranioectodermal dysplasia 2
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, PanelApp Australia, ClinGen, Ambry Genetics
short-rib thoracic dysplasia 7 with or without polydactyly
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae)
cranioectodermal dysplasia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
short rib-polydactyly syndrome, Verma-Naumoff type
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

WDR35 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.013697594).

BP6

Variant 2-19937944-C-T is Benign according to our data. Variant chr2-19937944-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 212590.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00152 (231/152228) while in subpopulation AFR AF = 0.00501 (208/41546). AF 95% confidence interval is 0.00445. There are 0 homozygotes in GnomAd4. There are 117 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WDR35	NM_001006657.2 link	c.2099G>A	p.Arg700His	missense_variant, splice_region_variant	Exon 20 of 28	ENST00000345530.8	NP_001006658.1	Q9P2L0-1
WDR35	NM_020779.4 link	c.2066G>A	p.Arg689His	missense_variant, splice_region_variant	Exon 19 of 27	ENST00000281405.9	NP_065830.2	Q9P2L0-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WDR35	ENST00000345530.8 link	c.2099G>A	p.Arg700His	missense_variant, splice_region_variant	Exon 20 of 28	1	NM_001006657.2	ENSP00000314444.5		Q9P2L0-1
WDR35	ENST00000281405.9 link	c.2066G>A	p.Arg689His	missense_variant, splice_region_variant	Exon 19 of 27	1	NM_020779.4	ENSP00000281405.5		Q9P2L0-2

Frequencies

GnomAD3 genomes

AF:

0.00152

AC:

231

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00502

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000191

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.000495

AC:

124

AN:

250338

AF XY:

0.000421

show subpopulations

Gnomad AFR exome

AF:

0.00628

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000142

Gnomad OTH exome

AF:

0.000328

GnomAD4 exome

AF:

0.000263

AC:

384

AN:

1461708

Hom.:

Cov.:

AF XY:

0.000241

AC XY:

175

AN XY:

727122

show subpopulations

African (AFR)

AF:

0.00583

AC:

195

AN:

33474

American (AMR)

AF:

0.000269

AC:

AN:

44674

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53346

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000139

AC:

155

AN:

1111970

Other (OTH)

AF:

0.000331

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

102

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00152

AC:

231

AN:

152228

Hom.:

Cov.:

AF XY:

0.00157

AC XY:

117

AN XY:

74428

show subpopulations

African (AFR)

AF:

0.00501

AC:

208

AN:

41546

American (AMR)

AF:

0.000327

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10596

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000191

AC:

AN:

68002

Other (OTH)

AF:

0.00236

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000619

Hom.:

Bravo

AF:

0.00172

ESP6500AA

AF:

0.00522

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000684

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000327

EpiControl

AF:

0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

May 08, 2025

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Jan 20, 2020

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The WDR35 c.2099G>A; p.Arg700His variant (rs74470618), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 212590). This variant is found in the African population with an overall allele frequency of 0.62% (147/23952 alleles) in the Genome Aggregation Database. The arginine at codon 700 is highly conserved, but computational analyses (SIFT: damaging, PolyPhen-2: benign) predict conflicting effects of this variant on protein structure/function. However, due to limited information, the clinical significance of the p.Arg700His variant is uncertain at this time. -

not specified

Uncertain:1Benign:1

Jun 01, 2016

Eurofins Ntd Llc (ga)

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Apr 30, 2015

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cranioectodermal dysplasia 2;C3279792:Short-rib thoracic dysplasia 7 with or without polydactyly

Benign:1

Jan 21, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

WDR35-related disorder

Benign:1

Sep 30, 2019

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Cranioectodermal dysplasia 2

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Short-rib thoracic dysplasia 7 with or without polydactyly

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.019

BayesDel_noAF

Pathogenic

0.20

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.15

.;T;.

Eigen

Uncertain

0.66

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Benign

0.069

MetaRNN

Benign

0.014

T;T;T

MetaSVM

Uncertain

0.58

MutationAssessor

Pathogenic

2.9

.;M;.

PhyloP100

5.0

PrimateAI

Uncertain

0.67

PROVEAN

Pathogenic

-4.6

D;D;D

REVEL

Pathogenic

0.66

Sift

Uncertain

0.0020

D;D;D

Sift4G

Benign

0.063

T;T;D

Polyphen

1.0

D;D;.

Vest4

0.45

MVP

0.94

MPC

0.42

ClinPred

0.074

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.43

gMVP

0.67

Mutation Taster

=50/50

(source)

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

Publications

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rs74470618

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over