8-31132476-T-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_000553.6(WRN):c.2937T>G(p.Ile979Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000297 in 1,614,188 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I979T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0014 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00019 ( 1 hom. )

Consequence

WRN
NM_000553.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:4O:1

Conservation

PhyloP100: 0.489

Publications

7 publications found

Variant links:

Genes affected

WRN (HGNC:12791): (WRN RecQ like helicase) This gene encodes a member of the RecQ subfamily of DNA helicase proteins. The encoded nuclear protein is important in the maintenance of genome stability and plays a role in DNA repair, replication, transcription and telomere maintenance. This protein contains a N-terminal 3' to 5' exonuclease domain, an ATP-dependent helicase domain and RQC (RecQ helicase conserved region) domain in its central region, and a C-terminal HRDC (helicase RNase D C-terminal) domain and nuclear localization signal. Defects in this gene are the cause of Werner syndrome, an autosomal recessive disorder characterized by accelerated aging and an elevated risk for certain cancers. [provided by RefSeq, Aug 2017]

WRN Gene-Disease associations (from GenCC):

Werner syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Orphanet, G2P, Ambry Genetics
osteosarcoma
Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp

WRN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.012989581).

BP6

Variant 8-31132476-T-G is Benign according to our data. Variant chr8-31132476-T-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 135424.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00135 (206/152352) while in subpopulation AFR AF = 0.00459 (191/41582). AF 95% confidence interval is 0.00406. There are 2 homozygotes in GnomAd4. There are 108 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WRN	NM_000553.6 link	c.2937T>G	p.Ile979Met	missense_variant	Exon 24 of 35	ENST00000298139.7	NP_000544.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
WRN	ENST00000298139.7 link	c.2937T>G	p.Ile979Met	missense_variant	Exon 24 of 35	1	NM_000553.6	ENSP00000298139.5
WRN	ENST00000521620.5 link	n.1570T>G		non_coding_transcript_exon_variant	Exon 12 of 23	1
WRN	ENST00000650667.1 link	n.*2551T>G		non_coding_transcript_exon_variant	Exon 23 of 34			ENSP00000498593.1
WRN	ENST00000650667.1 link	n.*2551T>G		3_prime_UTR_variant	Exon 23 of 34			ENSP00000498593.1

Frequencies

GnomAD3 genomes

AF:

0.00133

AC:

202

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00451

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000358

AC:

AN:

251308

AF XY:

0.000265

show subpopulations

Gnomad AFR exome

AF:

0.00499

Gnomad AMR exome

AF:

0.000173

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000187

AC:

273

AN:

1461836

Hom.:

Cov.:

AF XY:

0.000186

AC XY:

135

AN XY:

727216

show subpopulations

African (AFR)

AF:

0.00645

AC:

216

AN:

33480

American (AMR)

AF:

0.000201

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39680

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00156

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000135

AC:

AN:

1111994

Other (OTH)

AF:

0.000364

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00135

AC:

206

AN:

152352

Hom.:

Cov.:

AF XY:

0.00145

AC XY:

108

AN XY:

74508

show subpopulations

African (AFR)

AF:

0.00459

AC:

191

AN:

41582

American (AMR)

AF:

0.000653

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68028

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000388

Hom.:

Bravo

AF:

0.00149

ESP6500AA

AF:

0.00545

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000461

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:4Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Werner syndrome

Uncertain:2Benign:2

Dec 27, 2024

Revvity Omics, Revvity

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Feb 01, 2025

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Jul 27, 2019

Baylor Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868].

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not provided

Benign:1

Aug 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

WRN: BP4, BS2

Wiskott-Aldrich syndrome

Benign:1

Jul 07, 2023

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not specified

Other:1

Sep 19, 2013

ITMI

Significance:not provided

Review Status:no classification provided

Collection Method:reference population

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.44

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.15

Eigen

Benign

-0.032

Eigen_PC

Benign

0.014

FATHMM_MKL

Benign

0.70

LIST_S2

Benign

0.76

MetaRNN

Benign

0.013

MetaSVM

Benign

-0.78

MutationAssessor

Benign

1.2

PhyloP100

0.49

PrimateAI

Benign

0.38

PROVEAN

Benign

-1.1

REVEL

Benign

0.14

Sift

Benign

0.17

Sift4G

Benign

0.19

Vest4

0.38

ClinPred

0.047

GERP RS

4.3

Varity_R

0.29

gMVP

0.41

Mutation Taster

=97/3

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over