chr4-6300874-G-A

Position:

chr4-6300874-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_006005.3(WFS1):c.1079G>A(p.Cys360Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000203 in 1,613,958 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C360R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

WFS1
NM_006005.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 9.34

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 Likely_pathogenic. Variant got 6 ACMG points.

PM1

In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 8 uncertain in NM_006005.3

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.924

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WFS1	NM_006005.3 linkuse as main transcript	c.1079G>A	p.Cys360Tyr	missense_variant	8/8	ENST00000226760.5
WFS1	NM_001145853.1 linkuse as main transcript	c.1079G>A	p.Cys360Tyr	missense_variant	8/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WFS1	ENST00000226760.5 linkuse as main transcript	c.1079G>A	p.Cys360Tyr	missense_variant	8/8	1	NM_006005.3	P2
	ENST00000661896.1 linkuse as main transcript	n.1337+3041C>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.000263

AC:

AN:

152070

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00118

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:

0.000250

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000127

AC:

AN:

251418

Hom.:

AF XY:

0.0000883

AC XY:

AN XY:

135888

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000202

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000197

AC:

288

AN:

1461888

Hom.:

Cov.:

100

AF XY:

0.000193

AC XY:

140

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.000268

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000226

Gnomad4 OTH exome

AF:

0.000315

GnomAD4 genome

AF:

0.000263

AC:

AN:

152070

Hom.:

Cov.:

AF XY:

0.000229

AC XY:

AN XY:

74276

show subpopulations

Gnomad4 AFR

AF:

0.0000966

Gnomad4 AMR

AF:

0.00118

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000250

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000267

Hom.:

Bravo

AF:

0.000480

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jan 22, 2024	Reported as a variant of uncertain significance in a patient referred for whole exome sequencing who was also compound heterozygous for another variant of uncertain significance in WFS1 (PMID: 27959697); patient clinical information not provided; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 26435059, 31264968, 27959697) -
Uncertain significance, criteria provided, single submitter	clinical testing	Mayo Clinic Laboratories, Mayo Clinic	Sep 06, 2022	PP3, PM2_supporting -
Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 22, 2024	This sequence change replaces cysteine, which is neutral and slightly polar, with tyrosine, which is neutral and polar, at codon 360 of the WFS1 protein (p.Cys360Tyr). This variant is present in population databases (rs147157374, gnomAD 0.02%). This missense change has been observed in individual(s) with multiple congenital anomalies or with type 1 diabetes (PMID: 27959697, 31264968). ClinVar contains an entry for this variant (Variation ID: 374398). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt WFS1 protein function with a positive predictive value of 95%. 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. -

Type 2 diabetes mellitus;C1833021:Autosomal dominant nonsyndromic hearing loss 6;C3280358:Wolfram-like syndrome;C3805412:Cataract 41;C4551693:Wolfram syndrome 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 31, 2018

- -

Wolfram syndrome 1

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Baylor Genetics

Sep 24, 2014

Our laboratory reported dual molecular diagnoses in ACTG1 (NM_001199954.1, c.118C>T) and WFS1 (NM_001145853.1, c.2191A>G and c.1079G>A in trans) in one individual with reported features of delayed motor milestones, delayed speech, mild intellectual disability, congenital bilateral sensorineural hearing loss, dysmorphic features and eye anomalies (strabismus, possible cortical visual impairment). Brain MRI showed dysplastic corpus callosum and possible intracranial lipoma. Additionally, this variant was seen once in our laboratory in trans with another missense variant (c.2452C>T) in a 22-year-old male with muscle weakness, obesity and type II diabetes, hypertension, fatigue and fibromyalgia, primary hypothyroidism, thymic hyperplasia, short stature, and nonalcoholic steatohepatitis -

Autosomal dominant nonsyndromic hearing loss 6

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genomic Research Center, Shahid Beheshti University of Medical Sciences

Aug 07, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.32

BayesDel_noAF

Pathogenic

0.50

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.73

D;D

Eigen

Pathogenic

0.76

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.96

.;D

M_CAP

Pathogenic

0.84

MetaRNN

Pathogenic

0.92

D;D

MetaSVM

Pathogenic

0.93

MutationAssessor

Uncertain

2.8

M;M

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.84

PROVEAN

Pathogenic

-6.0

D;D

REVEL

Pathogenic

0.85

Sift

Uncertain

0.0010

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.96

MVP

1.0

ClinPred

0.84

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.81

gMVP

0.92

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