4-6294720-G-T

Position:

• chr4-6294720-G-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_006005.3(WFS1):​c.713-321G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0626 in 392,278 control chromosomes in the GnomAD database, including 1,045 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.056 (343 hom., cov: 33)
  • Exomes 𝑓: 0.067 (702 hom.)
• Consequence: WFS1 NM_006005.3 intron
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.874

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 Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BP6: Variant 4-6294720-G-T is Benign according to our data. Variant chr4-6294720-G-T is described in ClinVar as [Benign]. Clinvar id is 673197.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.167 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
WFS1	NM_006005.3	c.713-321G>T		intron_variant		ENST00000226760.5	NP_005996.2
WFS1	NM_001145853.1	c.713-321G>T		intron_variant			NP_001139325.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
WFS1	ENST00000226760.5	c.713-321G>T		intron_variant		1	NM_006005.3	ENSP00000226760.1

Frequencies

GnomAD3 genomes AF: 0.0558 AC: 8486 AN: 152128 Hom.: 344 Cov.: 33

Gnomad AFR AF: 0.0157

Gnomad AMI AF: 0.0186

Gnomad AMR AF: 0.0608

Gnomad ASJ AF: 0.0308

Gnomad EAS AF: 0.177

Gnomad SAS AF: 0.0491

Gnomad FIN AF: 0.0650

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.0713

Gnomad OTH AF: 0.0431

GnomAD4 exome AF: 0.0670 AC: 16086 AN: 240032 Hom.: 702 AF XY: 0.0643 AC XY: 8277 AN XY: 128636

Gnomad4 AFR exome AF: 0.0154

Gnomad4 AMR exome AF: 0.0800

Gnomad4 ASJ exome AF: 0.0296

Gnomad4 EAS exome AF: 0.170

Gnomad4 SAS exome AF: 0.0394

Gnomad4 FIN exome AF: 0.0698

Gnomad4 NFE exome AF: 0.0702

Gnomad4 OTH exome AF: 0.0624

GnomAD4 genome AF: 0.0557 AC: 8482 AN: 152246 Hom.: 343 Cov.: 33 AF XY: 0.0563 AC XY: 4188 AN XY: 74430

Gnomad4 AFR AF: 0.0157

Gnomad4 AMR AF: 0.0608

Gnomad4 ASJ AF: 0.0308

Gnomad4 EAS AF: 0.177

Gnomad4 SAS AF: 0.0487

Gnomad4 FIN AF: 0.0650

Gnomad4 NFE AF: 0.0713

Gnomad4 OTH AF: 0.0426

Alfa AF: 0.0612 Hom.: 209

Bravo AF: 0.0557

Asia WGS AF: 0.0890 AC: 311 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 14, 2018	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.37
DANN	Benign	0.54

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs12511742; hg19: chr4-6296447;