rs766140596

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001163809.2(WDR81):​c.3085G>A​(p.Ala1029Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000539 in 1,558,088 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000021 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000057 ( 2 hom. )

Consequence

WDR81
NM_001163809.2 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.822
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.013398021).
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
WDR81NM_001163809.2 linkuse as main transcriptc.3085G>A p.Ala1029Thr missense_variant 1/10 ENST00000409644.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
WDR81ENST00000409644.6 linkuse as main transcriptc.3085G>A p.Ala1029Thr missense_variant 1/101 NM_001163809.2 P1Q562E7-1
ENST00000576540.1 linkuse as main transcriptn.296-2133C>T intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000206
AC:
3
AN:
145520
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000246
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000491
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000104
AC:
17
AN:
162840
Hom.:
0
AF XY:
0.000171
AC XY:
15
AN XY:
87548
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:
0.000619
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000452
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000573
AC:
81
AN:
1412568
Hom.:
2
Cov.:
37
AF XY:
0.0000930
AC XY:
65
AN XY:
698608
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000691
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000212
Gnomad4 OTH exome
AF:
0.0000342
GnomAD4 genome
AF:
0.0000206
AC:
3
AN:
145520
Hom.:
0
Cov.:
33
AF XY:
0.0000424
AC XY:
3
AN XY:
70818
show subpopulations
Gnomad4 AFR
AF:
0.0000246
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000491
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000302
ExAC
AF:
0.0000824
AC:
9

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Cerebellar ataxia, intellectual disability, and dysequilibrium syndrome 2 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingMayo Clinic Laboratories, Mayo ClinicJan 12, 2017- -
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 06, 2023The c.3085G>A (p.A1029T) alteration is located in exon 1 (coding exon 1) of the WDR81 gene. This alteration results from a G to A substitution at nucleotide position 3085, causing the alanine (A) at amino acid position 1029 to be replaced by a threonine (T). 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
0.070
BayesDel_addAF
Benign
-0.60
T
BayesDel_noAF
Benign
-0.74
CADD
Benign
4.2
DANN
Benign
0.47
DEOGEN2
Benign
0.011
T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.092
N
LIST_S2
Benign
0.59
T
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.013
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-1.2
N
MutationTaster
Benign
1.0
N;N;N;N;N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.27
N
REVEL
Benign
0.046
Sift
Benign
0.56
T
Sift4G
Benign
0.31
T
Vest4
0.061
MutPred
0.17
Gain of glycosylation at A1029 (P = 0.0053);
MVP
0.048
MPC
0.38
ClinPred
0.0092
T
GERP RS
-0.34
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.019
gMVP
0.17

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: rs766140596; hg19: chr17-1631338; API