rs727504730

Positions:

• chr4-6277550-C-G
• chr4-6277550-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_006005.3(WFS1):​c.95C>G​(p.Ser32Trp) 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. Synonymous variant affecting the same amino acid position (i.e. S32S) 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: 1.38

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.797

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
WFS1	NM_006005.3	c.95C>G	p.Ser32Trp	missense_variant	2/8	ENST00000226760.5	NP_005996.2
WFS1	NM_001145853.1	c.95C>G	p.Ser32Trp	missense_variant	2/8		NP_001139325.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
WFS1	ENST00000226760.5	c.95C>G	p.Ser32Trp	missense_variant	2/8	1	NM_006005.3	ENSP00000226760	P2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 33

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	Benign	0.23
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.030
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.17	T;T
Eigen	Benign	0.13
Eigen_PC	Benign	-0.042
FATHMM_MKL	Benign	0.14	N
LIST_S2	Benign	0.85	.;T
M_CAP	Pathogenic	0.49	D
MetaRNN	Pathogenic	0.80	D;D
MetaSVM	Uncertain	0.75	D
MutationAssessor	Uncertain	2.6	M;M
MutationTaster	Benign	1.0	D;D
PrimateAI	Pathogenic	0.86	D
PROVEAN	Benign	-1.4	N;N
REVEL	Uncertain	0.48
Sift	Uncertain	0.0080	D;D
Sift4G	Uncertain	0.014	D;D
Polyphen		1.0	D;D
Vest4		0.55
MutPred		0.24		Loss of loop (P = 0.0145);Loss of loop (P = 0.0145);
MVP		0.99
ClinPred		0.91	D
GERP RS		3.4
Varity_R		0.098
gMVP		0.47

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: rs727504730; hg19: chr4-6279277;