chr4-6301849-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PM5PP3_Moderate

The NM_006005.3(WFS1):​c.2054G>T​(p.Arg685Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,534 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R685P) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

WFS1
NM_006005.3 missense

Scores

7
10
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.21
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 Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a topological_domain Lumenal (size 216) in uniprot entity WFS1_HUMAN there are 92 pathogenic changes around while only 24 benign (79%) in NM_006005.3
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr4-6301849-G-C is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.873

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
WFS1NM_006005.3 linkuse as main transcriptc.2054G>T p.Arg685Leu missense_variant 8/8 ENST00000226760.5 NP_005996.2 O76024A0A0S2Z4V6
WFS1NM_001145853.1 linkuse as main transcriptc.2054G>T p.Arg685Leu missense_variant 8/8 NP_001139325.1 O76024A0A0S2Z4V6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
WFS1ENST00000226760.5 linkuse as main transcriptc.2054G>T p.Arg685Leu missense_variant 8/81 NM_006005.3 ENSP00000226760.1 O76024

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD3 exomes
AF:
0.00000400
AC:
1
AN:
250084
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135280
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460534
Hom.:
0
Cov.:
98
AF XY:
0.00000138
AC XY:
1
AN XY:
726614
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
34
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.35
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Pathogenic
0.32
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.53
D;D
Eigen
Uncertain
0.67
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.96
.;D
M_CAP
Pathogenic
0.56
D
MetaRNN
Pathogenic
0.87
D;D
MetaSVM
Pathogenic
0.98
D
MutationAssessor
Benign
1.8
L;L
PrimateAI
Uncertain
0.67
T
PROVEAN
Uncertain
-3.2
D;D
REVEL
Pathogenic
0.81
Sift
Uncertain
0.027
D;D
Sift4G
Uncertain
0.022
D;D
Polyphen
0.96
D;D
Vest4
0.76
MutPred
0.42
Gain of helix (P = 0.0496);Gain of helix (P = 0.0496);
MVP
1.0
ClinPred
0.88
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.49
gMVP
0.81

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: rs142668478; hg19: chr4-6303576; API