NM_006005.3:c.2469C>T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_006005.3(WFS1):​c.2469C>T​(p.Ile823Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00281 in 1,604,770 control chromosomes in the GnomAD database, including 106 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.014 ( 58 hom., cov: 35)
Exomes 𝑓: 0.0017 ( 48 hom. )

Consequence

WFS1
NM_006005.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: 0.215
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.38).
BP6
Variant 4-6302264-C-T is Benign according to our data. Variant chr4-6302264-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 130751.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr4-6302264-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.215 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0138 (2095/152332) while in subpopulation AFR AF= 0.0471 (1957/41580). AF 95% confidence interval is 0.0453. There are 58 homozygotes in gnomad4. There are 983 alleles in male gnomad4 subpopulation. Median coverage is 35. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 58 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
WFS1NM_006005.3 linkc.2469C>T p.Ile823Ile synonymous_variant Exon 8 of 8 ENST00000226760.5 NP_005996.2 O76024A0A0S2Z4V6
WFS1NM_001145853.1 linkc.2469C>T p.Ile823Ile 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.2469C>T p.Ile823Ile synonymous_variant Exon 8 of 8 1 NM_006005.3 ENSP00000226760.1 O76024

Frequencies

GnomAD3 genomes
AF:
0.0137
AC:
2088
AN:
152214
Hom.:
58
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.0471
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00536
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00348
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.0110
GnomAD3 exomes
AF:
0.00356
AC:
885
AN:
248278
Hom.:
15
AF XY:
0.00245
AC XY:
330
AN XY:
134452
show subpopulations
Gnomad AFR exome
AF:
0.0460
Gnomad AMR exome
AF:
0.00189
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00224
Gnomad SAS exome
AF:
0.000264
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000187
Gnomad OTH exome
AF:
0.00116
GnomAD4 exome
AF:
0.00167
AC:
2421
AN:
1452438
Hom.:
48
Cov.:
99
AF XY:
0.00145
AC XY:
1049
AN XY:
721004
show subpopulations
Gnomad4 AFR exome
AF:
0.0500
Gnomad4 AMR exome
AF:
0.00272
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00580
Gnomad4 SAS exome
AF:
0.000279
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000157
Gnomad4 OTH exome
AF:
0.00325
GnomAD4 genome
AF:
0.0138
AC:
2095
AN:
152332
Hom.:
58
Cov.:
35
AF XY:
0.0132
AC XY:
983
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.0471
Gnomad4 AMR
AF:
0.00536
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00349
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.0123
Alfa
AF:
0.00592
Hom.:
11
Bravo
AF:
0.0158
Asia WGS
AF:
0.00462
AC:
16
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.000474

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:12
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:5
May 07, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Ile823Ile in Exon 08 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 5.1% (190/3738) of Af rican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs1801215). -

Dec 26, 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 10, 2020
Athena Diagnostics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 05, 2013
Genetic Services Laboratory, University of Chicago
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:4
Sep 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

WFS1: BP4, BP7 -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 12, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

WFS1-Related Spectrum Disorders Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Autosomal dominant nonsyndromic hearing loss 6 Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Wolfram syndrome 1 Benign:1
-
Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic
Significance: Likely 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 rs1801215 in Wolfram's syndrome yet. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.38
CADD
Benign
2.2
DANN
Benign
0.79
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: rs1801215; hg19: chr4-6303991; API