rs2230721

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_006005.3(WFS1):c.2322G>A(p.Lys774=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0734 in 1,612,924 control chromosomes in the GnomAD database, including 4,881 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.069 ( 452 hom., cov: 34)

Exomes 𝑓: 0.074 ( 4429 hom. )

Consequence

WFS1
NM_006005.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 1.73

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 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.51).

BP6

Variant 4-6302117-G-A is Benign according to our data. Variant chr4-6302117-G-A is described in ClinVar as [Benign]. Clinvar id is 45452.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr4-6302117-G-A is described in Lovd as [Benign].

BP7

Synonymous conserved (PhyloP=1.73 with no splicing effect.

BA1

GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.103 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WFS1	NM_006005.3 linkuse as main transcript	c.2322G>A	p.Lys774=	synonymous_variant	8/8	ENST00000226760.5
WFS1	NM_001145853.1 linkuse as main transcript	c.2322G>A	p.Lys774=	synonymous_variant	8/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WFS1	ENST00000226760.5 linkuse as main transcript	c.2322G>A	p.Lys774=	synonymous_variant	8/8	1	NM_006005.3	P2
	ENST00000661896.1 linkuse as main transcript	n.1337+1798C>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.0687

AC:

10461

AN:

152228

Hom.:

452

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0769

Gnomad AMI

AF:

0.180

Gnomad AMR

AF:

0.0512

Gnomad ASJ

AF:

0.103

Gnomad EAS

AF:

0.00135

Gnomad SAS

AF:

0.111

Gnomad FIN

AF:

0.0238

Gnomad MID

AF:

0.114

Gnomad NFE

AF:

0.0735

Gnomad OTH

AF:

0.0635

GnomAD3 exomes

AF:

0.0634

AC:

15694

AN:

247402

Hom.:

626

AF XY:

0.0667

AC XY:

8969

AN XY:

134566

show subpopulations

Gnomad AFR exome

AF:

0.0773

Gnomad AMR exome

AF:

0.0339

Gnomad ASJ exome

AF:

0.0912

Gnomad EAS exome

AF:

0.000494

Gnomad SAS exome

AF:

0.108

Gnomad FIN exome

AF:

0.0283

Gnomad NFE exome

AF:

0.0730

Gnomad OTH exome

AF:

0.0637

GnomAD4 exome

AF:

0.0739

AC:

107885

AN:

1460578

Hom.:

4429

Cov.:

100

AF XY:

0.0749

AC XY:

54398

AN XY:

726582

show subpopulations

Gnomad4 AFR exome

AF:

0.0780

Gnomad4 AMR exome

AF:

0.0355

Gnomad4 ASJ exome

AF:

0.0916

Gnomad4 EAS exome

AF:

0.000428

Gnomad4 SAS exome

AF:

0.106

Gnomad4 FIN exome

AF:

0.0293

Gnomad4 NFE exome

AF:

0.0769

Gnomad4 OTH exome

AF:

0.0719

GnomAD4 genome

AF:

0.0687

AC:

10462

AN:

152346

Hom.:

452

Cov.:

AF XY:

0.0668

AC XY:

4976

AN XY:

74504

show subpopulations

Gnomad4 AFR

AF:

0.0767

Gnomad4 AMR

AF:

0.0511

Gnomad4 ASJ

AF:

0.103

Gnomad4 EAS

AF:

0.00135

Gnomad4 SAS

AF:

0.111

Gnomad4 FIN

AF:

0.0238

Gnomad4 NFE

AF:

0.0735

Gnomad4 OTH

AF:

0.0643

Alfa

AF:

0.0731

Hom.:

364

Bravo

AF:

0.0697

Asia WGS

AF:

0.0700

AC:

241

AN:

3478

EpiCase

AF:

0.0770

EpiControl

AF:

0.0770

ClinVar

Significance: Benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:5

Benign, criteria provided, single submitter	clinical testing	GeneDx	May 22, 2012	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. -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	May 07, 2012	Lys774Lys 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 7.3% (273/3734) of Af rican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs2230721). -
Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -
Likely benign, no assertion criteria provided	clinical testing	Genetic Services Laboratory, University of Chicago	-	Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -
Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Nov 20, 2013	- -

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 31, 2024	- -
Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Nov 29, 2023	- -

WFS1-Related Spectrum Disorders

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

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 benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Autosomal dominant nonsyndromic hearing loss 6

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

Wolfram syndrome 1

Benign:1

Benign, criteria provided, single submitter

research

Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic

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 rs2230721 yet. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.51

Cadd

Benign

5.6

Dann

Benign

0.66

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over