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GeneBe

17-1725165-G-T

Variant summary

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

The NM_001163809.2(WDR81):c.206G>T(p.Arg69Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000652 in 1,533,986 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: 33)
Exomes 𝑓: 0.0000058 ( 0 hom. )

Consequence

WDR81
NM_001163809.2 missense

Scores

1
9
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.71
Variant links:
Genes affected
WDR81 (HGNC:26600): (WD repeat domain 81) This gene encodes a multi-domain transmembrane protein which is predominantly expressed in the brain and is thought to play a role in endolysosomal trafficking. Mutations in this gene are associated with an autosomal recessive form of a syndrome exhibiting cerebellar ataxia, cognitive disability, and disequilibrium (CAMRQ2). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2017]

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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/exons MANE UniProt
WDR81NM_001163809.2 linkuse as main transcriptc.206G>T p.Arg69Leu missense_variant 1/10 ENST00000409644.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
WDR81ENST00000409644.6 linkuse as main transcriptc.206G>T p.Arg69Leu missense_variant 1/101 NM_001163809.2 P1Q562E7-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152248
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000379
AC:
5
AN:
131834
Hom.:
0
AF XY:
0.0000139
AC XY:
1
AN XY:
71820
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000164
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000201
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000579
AC:
8
AN:
1381620
Hom.:
0
Cov.:
76
AF XY:
0.00000440
AC XY:
3
AN XY:
681322
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000169
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.29e-7
Gnomad4 OTH exome
AF:
0.0000173
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152366
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74512
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000508
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 09, 2021The c.206G>T (p.R69L) alteration is located in exon 1 (coding exon 1) of the WDR81 gene. This alteration results from a G to T substitution at nucleotide position 206, causing the arginine (R) at amino acid position 69 to be replaced by a leucine (L). 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
Benign
-0.11
T
BayesDel_noAF
Benign
-0.13
Cadd
Uncertain
24
Dann
Uncertain
1.0
DEOGEN2
Benign
0.050
T
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.45
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.76
T
M_CAP
Uncertain
0.088
D
MetaRNN
Uncertain
0.49
T
MetaSVM
Benign
-0.41
T
MutationAssessor
Benign
0.55
N
MutationTaster
Benign
0.62
D;D;D;D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Uncertain
-2.5
N
REVEL
Benign
0.18
Sift
Uncertain
0.010
D
Sift4G
Uncertain
0.0070
D
Vest4
0.60
MutPred
0.28
Loss of disorder (P = 0.0409);
MVP
0.66
MPC
0.97
ClinPred
0.23
T
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.20
gMVP
0.52

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

LitVar

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

Other links and lift over

dbSNP: rs1050738637; hg19: chr17-1628459; API