rs71530905

Positions:

• chr4-6301190-C-T

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_Strong BP6_Very_Strong BP7 BS2

The NM_006005.3(WFS1):​c.1395C>T​(p.Ala465=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000398 in 1,612,236 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. A465A) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.00024 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00041 (3 hom.)
• Consequence: WFS1 NM_006005.3 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: -3.56

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]

(HGNC:):

ACMG classification

Verdict is Benign. Variant got -17 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BP6: Variant 4-6301190-C-T is Benign according to our data. Variant chr4-6301190-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 227150.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-3.56 with no splicing effect.
• BS2: High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WFS1	NM_006005.3	c.1395C>T	p.Ala465=	synonymous_variant	8/8	ENST00000226760.5
WFS1	NM_001145853.1	c.1395C>T	p.Ala465=	synonymous_variant	8/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WFS1	ENST00000226760.5	c.1395C>T	p.Ala465=	synonymous_variant	8/8	1	NM_006005.3	P2
	ENST00000661896.1	n.1337+2725G>A		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes AF: 0.000243 AC: 37 AN: 152216 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000965

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000196

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000385

Gnomad SAS AF: 0.00373

Gnomad FIN AF: 0.000282

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000581 AC: 145 AN: 249722 Hom.: 0 AF XY: 0.000673 AC XY: 91 AN XY: 135144

Gnomad AFR exome AF: 0.000185

Gnomad AMR exome AF: 0.00107

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00284

Gnomad FIN exome AF: 0.0000978

Gnomad NFE exome AF: 0.000124

Gnomad OTH exome AF: 0.000327

GnomAD4 exome AF: 0.000414 AC: 604 AN: 1459902 Hom.: 3 Cov.: 102 AF XY: 0.000483 AC XY: 351 AN XY: 726306

Gnomad4 AFR exome AF: 0.000149

Gnomad4 AMR exome AF: 0.000850

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000151

Gnomad4 SAS exome AF: 0.00314

Gnomad4 FIN exome AF: 0.000155

Gnomad4 NFE exome AF: 0.000219

Gnomad4 OTH exome AF: 0.000331

GnomAD4 genome AF: 0.000243 AC: 37 AN: 152334 Hom.: 0 Cov.: 33 AF XY: 0.000309 AC XY: 23 AN XY: 74488

Gnomad4 AFR AF: 0.0000962

Gnomad4 AMR AF: 0.000196

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000386

Gnomad4 SAS AF: 0.00374

Gnomad4 FIN AF: 0.000282

Gnomad4 NFE AF: 0.000103

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000211 Hom.: 0

Bravo AF: 0.000223

Asia WGS AF: 0.00144 AC: 5 AN: 3478

EpiCase AF: 0.000273

EpiControl AF: 0.000178

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 19, 2019	- -
Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 06, 2024	- -

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Feb 25, 2015

p.Ala465Ala in exon 8 of WFS1: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue, is not located within the splice consensus sequence, and has been identified in 0.3% (46/16504) of So uth Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.bro adinstitute.org; dbSNP rs71530905). -

Wolfram syndrome 1 Benign:1

Benign, criteria provided, single submitter

research

Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic

-

Potent mutations in WFS1 gene are associated with Wolfram's syndrome, an autosomal recessive condition, which cause diabetes mellitus, diabetes insipidus, deafness and optic atrophy.However no sufficient evidence is found to ascertain the role of this particular variant rs71530905 yet. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	0.51
DANN	Benign	0.52
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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: rs71530905; hg19: chr4-6302917;