4-6302228-G-T

Variant names:

• chr4-6302228-G-T
• rs1046314
• NM_006005.3:c.2433G>T

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1 PM2 PP3

The NM_006005.3(WFS1):​c.2433G>T​(p.Lys811Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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 nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K811R) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 34)
• Consequence: WFS1 NM_006005.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.19
• Publications: 56 publications found

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):

• Wolfram-like syndrome

  Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, Ambry Genetics, ClinGen, Orphanet
• 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: PanelApp Australia, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• 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)

ENSG00000286176 (HGNC:58722):

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM1: In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 10 uncertain in NM_006005.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.764

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WFS1	NM_006005.3	c.2433G>T	p.Lys811Asn	missense_variant	Exon 8 of 8	ENST00000226760.5	NP_005996.2
WFS1	NM_001145853.1	c.2433G>T	p.Lys811Asn	missense_variant	Exon 8 of 8		NP_001139325.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WFS1	ENST00000226760.5	c.2433G>T	p.Lys811Asn	missense_variant	Exon 8 of 8	1	NM_006005.3	ENSP00000226760.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 101

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.72
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	-0.060
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Benign	0.31	T;T
Eigen	Benign	-0.063
Eigen_PC	Benign	-0.14
FATHMM_MKL	Benign	0.57	D
LIST_S2	Uncertain	0.94	.;D
M_CAP	Pathogenic	0.35	D
MetaRNN	Pathogenic	0.76	D;D
MetaSVM	Uncertain	0.019	D
MutationAssessor	Uncertain	2.3	M;M
PhyloP100		1.2
PrimateAI	Uncertain	0.57	T
PROVEAN	Benign	-1.6	N;N
REVEL	Uncertain	0.39
Sift	Uncertain	0.026	D;D
Sift4G	Uncertain	0.0090	D;D
Polyphen		0.98	D;D
Vest4		0.65
MutPred		0.37		Gain of glycosylation at S808 (P = 0.0053);Gain of glycosylation at S808 (P = 0.0053);
MVP		1.0
ClinPred		0.73	D
GERP RS		1.2
Varity_R		0.096
gMVP		0.75
Mutation Taster		=71/29	polymorphism

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

Other links and lift over

dbSNP: rs1046314; hg19: chr4-6303955;