chr2-19973664-A-G

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_020779.4(WDR35):​c.781T>C​(p.Trp261Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,614,128 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

WDR35
NM_020779.4 missense

Scores

13
4
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.10

Publications

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.947
PP5
Variant 2-19973664-A-G is Pathogenic according to our data. Variant chr2-19973664-A-G is described in ClinVar as Pathogenic. ClinVar VariationId is 31045.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020779.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
WDR35
NM_001006657.2
MANE Plus Clinical
c.781T>Cp.Trp261Arg
missense
Exon 8 of 28NP_001006658.1Q9P2L0-1
WDR35
NM_020779.4
MANE Select
c.781T>Cp.Trp261Arg
missense
Exon 8 of 27NP_065830.2Q9P2L0-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
WDR35
ENST00000345530.8
TSL:1 MANE Plus Clinical
c.781T>Cp.Trp261Arg
missense
Exon 8 of 28ENSP00000314444.5Q9P2L0-1
WDR35
ENST00000281405.9
TSL:1 MANE Select
c.781T>Cp.Trp261Arg
missense
Exon 8 of 27ENSP00000281405.5Q9P2L0-2
WDR35
ENST00000968993.1
c.709T>Cp.Trp237Arg
missense
Exon 7 of 26ENSP00000639052.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152246
Hom.:
0
Cov.:
33
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251412
AF XY:
0.00000736
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461882
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1112008
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.535
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
AF:
0.00000657
AC:
1
AN:
152246
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74384
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41468
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68046
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:no assertion criteria provided
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
Short-rib thoracic dysplasia 7 with or without polydactyly (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.23
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.48
T
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.91
D
M_CAP
Uncertain
0.28
D
MetaRNN
Pathogenic
0.95
D
MetaSVM
Benign
-0.38
T
MutationAssessor
Pathogenic
3.4
M
PhyloP100
9.1
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-14
D
REVEL
Pathogenic
0.69
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
0.98
D
Vest4
0.97
MutPred
0.76
Loss of catalytic residue at M264 (P = 0.0064)
MVP
0.80
MPC
0.44
ClinPred
1.0
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.94
gMVP
0.92
Mutation Taster
=0/100
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs431905505; hg19: chr2-20173425; API