rs397517196

Variant names:

• chr4-6301936-A-C
• rs397517196
• NM_006005.3:c.2141A>C

Your query was ambiguous. Multiple possible variants found:

• chr4-6301936-A-C
• chr4-6301936-A-T

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PM1 PM2 PM5 PP3_Strong PP5_Moderate

The NM_006005.3(WFS1):​c.2141A>C​(p.Asn714Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N714K) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 34)
• Consequence: WFS1 NM_006005.3 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 8.77
• Publications: 1 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: Pathogenic. The variant received 12 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, 21 uncertain in NM_006005.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr4-6301937-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 2831353.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.977
• PP5: Variant 4-6301936-A-C is Pathogenic according to our data. Variant chr4-6301936-A-C is described in ClinVar as Pathogenic. ClinVar VariationId is 45447.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WFS1	NM_006005.3	c.2141A>C	p.Asn714Thr	missense_variant	Exon 8 of 8	ENST00000226760.5	NP_005996.2
WFS1	NM_001145853.1	c.2141A>C	p.Asn714Thr	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.2141A>C	p.Asn714Thr	missense_variant	Exon 8 of 8	1	NM_006005.3	ENSP00000226760.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 99

GnomAD4 genome Cov.: 34

Alfa AF: 0.0000230 Hom.: 1

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Rare genetic deafness Pathogenic:1

Aug 15, 2013

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The Asn714Thr variant in WFS1 has been reported in one Indian individual with he aring loss and segregated in 5 affected and 4 unaffected relatives (combined unp ublished data from our laboratory and a second laboratory). Frequency data from large population studies is insufficient. Computational analyses (biochemical am ino acid properties, conservation, AlignGVGD, PolyPhen2, and SIFT) are consisten t with pathogenicity. In summary, this variant meets criteria for classification as pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Pathogenic	0.38	D
BayesDel_noAF	Pathogenic	0.30
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.76	D;D
Eigen	Pathogenic	0.79
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.87	.;D
M_CAP	Pathogenic	0.78	D
MetaRNN	Pathogenic	0.98	D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	2.9	M;M
PhyloP100		8.8
PrimateAI	Uncertain	0.56	T
PROVEAN	Pathogenic	-5.6	D;D
REVEL	Pathogenic	0.93
Sift	Pathogenic	0.0	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		1.0	D;D
Vest4		0.94
MutPred		0.75		Loss of helix (P = 0.0558);Loss of helix (P = 0.0558);
MVP		1.0
ClinPred		0.99	D
GERP RS		5.5
Varity_R		0.88
gMVP		0.90
Mutation Taster		=20/80	disease causing (ClinVar)

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: rs397517196; hg19: chr4-6303663;