4-6300819-G-T

Position:

• chr4-6300819-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1 PM2

The NM_006005.3(WFS1):​c.1024G>T​(p.Ala342Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,756 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: WFS1 NM_006005.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.21

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 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM1: In a transmembrane_region Helical (size 20) in uniprot entity WFS1_HUMAN there are 5 pathogenic changes around while only 0 benign (100%) in NM_006005.3
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
WFS1	NM_006005.3	c.1024G>T	p.Ala342Ser	missense_variant	8/8	ENST00000226760.5	NP_005996.2
WFS1	NM_001145853.1	c.1024G>T	p.Ala342Ser	missense_variant	8/8		NP_001139325.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
WFS1	ENST00000226760.5	c.1024G>T	p.Ala342Ser	missense_variant	8/8	1	NM_006005.3	ENSP00000226760.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461756 Hom.: 0 Cov.: 99 AF XY: 0.00 AC XY: 0 AN XY: 727188

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.: 32

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	-0.050
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.21	T;T
Eigen	Uncertain	0.55
Eigen_PC	Uncertain	0.54
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.95	.;D
M_CAP	Pathogenic	0.49	D
MetaRNN	Uncertain	0.67	D;D
MetaSVM	Uncertain	0.58	D
MutationAssessor	Uncertain	2.7	M;M
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-0.76	N;N
REVEL	Uncertain	0.50
Sift	Benign	0.044	D;D
Sift4G	Uncertain	0.038	D;D
Polyphen		0.98	D;D
Vest4		0.51
MutPred		0.41		Loss of helix (P = 0.028);Loss of helix (P = 0.028);
MVP		0.99
ClinPred		0.77	D
GERP RS		4.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.12
gMVP		0.80

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

Other links and lift over

dbSNP: rs148028521; hg19: chr4-6302546; COSMIC: COSV99901295; COSMIC: COSV99901295;