rs372783392

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_006005.3(WFS1):​c.169G>A​(p.Ala57Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000021 in 1,572,824 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. 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. A57S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

WFS1
NM_006005.3 missense

Scores

1
1
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: -3.14

Publications

4 publications found
Variant links:
Genes affected
WFS1 (HGNC:12762): (wolframin ER transmembrane glycoprotein) This gene encodes a transmembrane protein, which is located primarily in the endoplasmic reticulum and ubiquitously expressed with highest levels in brain, pancreas, heart, and insulinoma beta-cell lines. Mutations in this gene are associated with Wolfram syndrome, also called DIDMOAD (Diabetes Insipidus, Diabetes Mellitus, Optic Atrophy, and Deafness), an autosomal recessive disorder. The disease affects the brain and central nervous system. Mutations in this gene can also cause autosomal dominant deafness 6 (DFNA6), also known as DFNA14 or DFNA38. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Mar 2009]
WFS1 Gene-Disease associations (from GenCC):
  • Wolfram-like syndrome
    Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, Ambry Genetics, ClinGen, Orphanet
  • Wolfram syndrome
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • autosomal dominant nonsyndromic hearing loss 6
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • cataract 41
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • Wolfram syndrome 1
    Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • autosomal dominant nonsyndromic hearing loss
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • early-onset nuclear cataract
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • type 2 diabetes mellitus
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.06147808).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
WFS1NM_006005.3 linkc.169G>A p.Ala57Thr missense_variant Exon 2 of 8 ENST00000226760.5 NP_005996.2
WFS1NM_001145853.1 linkc.169G>A p.Ala57Thr missense_variant Exon 2 of 8 NP_001139325.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
WFS1ENST00000226760.5 linkc.169G>A p.Ala57Thr missense_variant Exon 2 of 8 1 NM_006005.3 ENSP00000226760.1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152252
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000333
AC:
6
AN:
180008
AF XY:
0.0000206
show subpopulations
Gnomad AFR exome
AF:
0.0000988
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000144
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000407
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000190
AC:
27
AN:
1420572
Hom.:
0
Cov.:
33
AF XY:
0.0000171
AC XY:
12
AN XY:
702650
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32566
American (AMR)
AF:
0.00
AC:
0
AN:
38998
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25372
East Asian (EAS)
AF:
0.000106
AC:
4
AN:
37580
South Asian (SAS)
AF:
0.0000124
AC:
1
AN:
80776
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49292
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5662
European-Non Finnish (NFE)
AF:
0.0000192
AC:
21
AN:
1091502
Other (OTH)
AF:
0.0000170
AC:
1
AN:
58824
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
2
4
6
8
10
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:
0.0000394
AC:
6
AN:
152252
Hom.:
0
Cov.:
34
AF XY:
0.0000538
AC XY:
4
AN XY:
74382
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41472
American (AMR)
AF:
0.00
AC:
0
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
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

Genome 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
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000567
ESP6500AA
AF:
0.000231
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000169
AC:
2

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:2
Dec 05, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Benign. The p.Ala57Thr vari ant in WFS1 has not been previously reported in individuals with hearing loss. T his variant has been identified in 2/8708 African chromosomes by the Genome Aggr egation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs372783392) a nd has been reported in ClinVar (Variation ID: 252656) as a variant of uncertain significance in an individual with unspecified clinical status. Although this v ariant has been seen in the general population, its frequency is not high enough to rule out a pathogenic role. The Alanine (Ala) at position 57 is not conserve d in mammals, and 2 mammals carry a Threonine (Thr) despite high nearby amino ac id conservation, raising the possibility that this change at this position may b e tolerated. Additional computational prediction tools suggest that the p.Ala57T hr variant may not impact the protein, though this information is not predictive enough to rule out pathogenicity. In summary, while the clinical significance o f the p.Ala57Thr variant is uncertain, available data suggest that it is more li kely to be benign. ACMG/AMP Criteria applied: BP4. -

Oct 16, 2015
Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Type 2 diabetes mellitus;C1833021:Autosomal dominant nonsyndromic hearing loss 6;C3280358:Wolfram-like syndrome;C3805412:Cataract 41;C4551693:Wolfram syndrome 1 Uncertain:1
Jan 10, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 57 of the WFS1 protein (p.Ala57Thr). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with WFS1-related conditions. ClinVar contains an entry for this variant (Variation ID: 252656). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt WFS1 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Wolfram syndrome 1 Benign:1
-
Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:research

Potent mutations in WFS1 gene are associated with Wolfram's syndrome, an autosomal recessive condition, which cause diabetes mellitus, diabetes insipidus, deafness and optic atrophy. However no sufficient evidence is found to ascertain the role of this particular variant rs372783392 in Wolfram's syndrome yet. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
0.024
DANN
Benign
0.67
DEOGEN2
Benign
0.046
T;T
Eigen
Benign
-1.8
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.0069
N
LIST_S2
Benign
0.31
.;T
M_CAP
Pathogenic
0.36
D
MetaRNN
Benign
0.061
T;T
MetaSVM
Benign
-0.57
T
MutationAssessor
Benign
0.79
N;N
PhyloP100
-3.1
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
0.070
N;N
REVEL
Benign
0.16
Sift
Benign
0.35
T;T
Sift4G
Benign
0.54
T;T
Polyphen
0.0010
B;B
Vest4
0.14
MVP
0.62
ClinPred
0.022
T
GERP RS
-2.6
PromoterAI
0.0072
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.024
gMVP
0.30
Mutation Taster
=99/1
polymorphism

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: rs372783392; hg19: chr4-6279351; API