Genetic Variant WFS1:p.Ile561Ile (chr4-6301478-C-T) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_006005.3(WFS1):c.1683C>T(p.Ile561Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00286 in 1,613,038 control chromosomes in the GnomAD database, including 153 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0022 ( 10 hom., cov: 34)

Exomes 𝑓: 0.0029 ( 143 hom. )

Consequence

WFS1
NM_006005.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -2.85

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):

nonsyndromic genetic hearing loss
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
Wolfram-like syndrome
Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Genomics England PanelApp, Ambry Genetics, ClinGen, Orphanet, Labcorp Genetics (formerly Invitae)
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: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
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)

WFS1 links:

ENSG00000286176 (HGNC:58722):

ENSG00000286176 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.75).

BP6

Variant 4-6301478-C-T is Benign according to our data. Variant chr4-6301478-C-T is described in ClinVar as Benign. ClinVar VariationId is 166595.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-2.85 with no splicing effect.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00216 (329/152370) while in subpopulation SAS AF = 0.0481 (232/4824). AF 95% confidence interval is 0.043. There are 10 homozygotes in GnomAd4. There are 215 alleles in the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 10 AD,AR,Unknown gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006005.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WFS1	NM_006005.3	MANE Select	c.1683C>T	p.Ile561Ile	synonymous	Exon 8 of 8	NP_005996.2	O76024
	WFS1	NM_001145853.1		c.1683C>T	p.Ile561Ile	synonymous	Exon 8 of 8	NP_001139325.1	O76024

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
WFS1	ENST00000226760.5	TSL:1 MANE Select	c.1683C>T	p.Ile561Ile	synonymous	Exon 8 of 8	ENSP00000226760.1	O76024
WFS1	ENST00000503569.5	TSL:1	c.1683C>T	p.Ile561Ile	synonymous	Exon 8 of 8	ENSP00000423337.1	O76024
WFS1	ENST00000852027.1		c.1776C>T	p.Ile592Ile	synonymous	Exon 9 of 9	ENSP00000522086.1

Frequencies

GnomAD3 genomes

AF:

0.00213

AC:

325

AN:

152252

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00176

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000385

Gnomad SAS

AF:

0.0489

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000955

GnomAD2 exomes

AF:

0.00615

AC:

1541

AN:

250732

AF XY:

0.00799

show subpopulations

Gnomad AFR exome

AF:

0.00179

Gnomad AMR exome

AF:

0.000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000272

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000704

Gnomad OTH exome

AF:

0.00278

GnomAD4 exome

AF:

0.00294

AC:

4290

AN:

1460668

Hom.:

143

Cov.:

100

AF XY:

0.00415

AC XY:

3015

AN XY:

726764

show subpopulations

African (AFR)

AF:

0.00248

AC:

AN:

33476

American (AMR)

AF:

0.000335

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.0445

AC:

3841

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52228

Middle Eastern (MID)

AF:

0.00347

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000432

AC:

AN:

1112000

Other (OTH)

AF:

0.00452

AC:

273

AN:

60384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

338

675

1013

1350

1688

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

116

174

232

290

<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:

0.00216

AC:

329

AN:

152370

Hom.:

Cov.:

AF XY:

0.00289

AC XY:

215

AN XY:

74506

show subpopulations

African (AFR)

AF:

0.00188

AC:

AN:

41590

American (AMR)

AF:

0.000588

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000386

AC:

AN:

5182

South Asian (SAS)

AF:

0.0481

AC:

232

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68044

Other (OTH)

AF:

0.00236

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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:

0.000360

Hom.:

Bravo

AF:

0.000801

Asia WGS

AF:

0.0420

AC:

145

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

not specified (2)

Autosomal dominant nonsyndromic hearing loss 6 (1)

WFS1-Related Spectrum Disorders (1)

Wolfram syndrome 1 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.75

CADD

Benign

0.94

(source)

DANN

Benign

0.74

PhyloP100

-2.9

Mutation Taster

=100/0

polymorphism (auto)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over