rs71539668

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_006005.3(WFS1):​c.2052G>A​(p.Ala684Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00148 in 1,612,972 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0012 ( 1 hom., cov: 34)
Exomes 𝑓: 0.0015 ( 3 hom. )

Consequence

WFS1
NM_006005.3 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:11

Conservation

PhyloP100: -1.62
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.98).
BP6
Variant 4-6301847-G-A is Benign according to our data. Variant chr4-6301847-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 137917.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=5, Benign=3, Uncertain_significance=1}. Variant chr4-6301847-G-A is described in Lovd as [Benign]. Variant chr4-6301847-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-1.62 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
WFS1NM_006005.3 linkc.2052G>A p.Ala684Ala synonymous_variant Exon 8 of 8 ENST00000226760.5 NP_005996.2 O76024A0A0S2Z4V6
WFS1NM_001145853.1 linkc.2052G>A p.Ala684Ala synonymous_variant Exon 8 of 8 NP_001139325.1 O76024A0A0S2Z4V6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
WFS1ENST00000226760.5 linkc.2052G>A p.Ala684Ala synonymous_variant Exon 8 of 8 1 NM_006005.3 ENSP00000226760.1 O76024

Frequencies

GnomAD3 genomes
AF:
0.00120
AC:
183
AN:
152202
Hom.:
1
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00222
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00140
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00133
AC:
333
AN:
250228
Hom.:
1
AF XY:
0.00117
AC XY:
159
AN XY:
135366
show subpopulations
Gnomad AFR exome
AF:
0.00136
Gnomad AMR exome
AF:
0.00269
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000381
Gnomad SAS exome
AF:
0.000261
Gnomad FIN exome
AF:
0.000377
Gnomad NFE exome
AF:
0.00157
Gnomad OTH exome
AF:
0.00295
GnomAD4 exome
AF:
0.00150
AC:
2198
AN:
1460652
Hom.:
3
Cov.:
100
AF XY:
0.00143
AC XY:
1042
AN XY:
726672
show subpopulations
Gnomad4 AFR exome
AF:
0.00143
Gnomad4 AMR exome
AF:
0.00262
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.000227
Gnomad4 SAS exome
AF:
0.000325
Gnomad4 FIN exome
AF:
0.000344
Gnomad4 NFE exome
AF:
0.00169
Gnomad4 OTH exome
AF:
0.00144
GnomAD4 genome
AF:
0.00120
AC:
183
AN:
152320
Hom.:
1
Cov.:
34
AF XY:
0.00117
AC XY:
87
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.00111
Gnomad4 AMR
AF:
0.00222
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00140
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.000691
Hom.:
0
Bravo
AF:
0.00143
Asia WGS
AF:
0.00231
AC:
8
AN:
3478
EpiCase
AF:
0.00142
EpiControl
AF:
0.00184

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:11
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:5
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

May 05, 2020
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

WFS1: BP4, BP7 -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not specified Benign:4
-
Clinical Genetics, Academic Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Apr 12, 2013
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Jul 12, 2017
Eurofins Ntd Llc (ga)
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 13, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

p.Ala684Ala in exon 8 of WFS1: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue, is not located within the splice consensus sequence, and has been identified in 0.3% (36/11552) of La tino chromosomes and 0.2% (118/66184) of European chromosomes by the Exome Aggre gation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs71539668}). -

WFS1-Related Spectrum Disorders Uncertain:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

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 rs71539668 in Wolfram's syndrome yet. -

Autosomal dominant nonsyndromic hearing loss 6 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.98
CADD
Benign
0.054
DANN
Benign
0.90
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs71539668; hg19: chr4-6303574; COSMIC: COSV56988815; COSMIC: COSV56988815; API