rs182813211

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_000553.6(WRN):c.1350+3A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000212 in 1,393,238 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

WRN
NM_000553.6 splice_region, intron

Scores

Splicing: ADA: 0.5755

Clinical Significance

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

Conservation

PhyloP100: 2.57

Publications

0 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 -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.48).

BP6

Variant 8-31083782-A-G is Benign according to our data. Variant chr8-31083782-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 412691.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00106 (161/152194) while in subpopulation AFR AF = 0.00356 (148/41566). AF 95% confidence interval is 0.00309. There are 0 homozygotes in GnomAd4. There are 83 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WRN	NM_000553.6 link	c.1350+3A>G		splice_region_variant, intron_variant	Intron 10 of 34	ENST00000298139.7	NP_000544.2	Q14191

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
WRN	ENST00000298139.7 link	c.1350+3A>G	splice_region_variant, intron_variant	Intron 10 of 34	1	NM_000553.6	ENSP00000298139.5	Q14191
WRN	ENST00000651642.1 link	c.565-1384A>G	intron_variant	Intron 3 of 3			ENSP00000498779.1	A0A494C0Y6
WRN	ENST00000650667.1 link	n.*964+3A>G	splice_region_variant, intron_variant	Intron 9 of 33			ENSP00000498593.1	A0A494C0M3

Frequencies

GnomAD3 genomes

AF:

0.00103

AC:

157

AN:

152078

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00347

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000787

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000236

AC:

AN:

249596

AF XY:

0.000185

show subpopulations

Gnomad AFR exome

AF:

0.00331

Gnomad AMR exome

AF:

0.000174

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000109

AC:

135

AN:

1241044

Hom.:

Cov.:

AF XY:

0.0000895

AC XY:

AN XY:

625700

show subpopulations

African (AFR)

AF:

0.00333

AC:

108

AN:

32462

American (AMR)

AF:

0.000254

AC:

AN:

43244

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24140

East Asian (EAS)

AF:

0.00

AC:

AN:

38354

South Asian (SAS)

AF:

0.0000122

AC:

AN:

81846

European-Finnish (FIN)

AF:

0.0000191

AC:

AN:

52364

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5310

European-Non Finnish (NFE)

AF:

0.00000330

AC:

AN:

909950

Other (OTH)

AF:

0.000206

AC:

AN:

53374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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:

0.00106

AC:

161

AN:

152194

Hom.:

Cov.:

AF XY:

0.00112

AC XY:

AN XY:

74402

show subpopulations

African (AFR)

AF:

0.00356

AC:

148

AN:

41566

American (AMR)

AF:

0.000786

AC:

AN:

15264

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:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10596

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67984

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.000576

Hom.:

Bravo

AF:

0.00118

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

WRN-related disorder

Uncertain:1

Jun 06, 2023

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The WRN c.1350+3A>G variant is predicted to interfere with splicing. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.36% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/8-30941298-A-G) and is interpreted as benign by a single submitter in ClinVar (https://preview.ncbi.nlm.nih.gov/clinvar/variation/412691/). This variant falls within a highly paralogous region. Allele frequency data should be interpreted with caution. Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Werner syndrome

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.48

CADD

Benign

(source)

DANN

Benign

0.73

PhyloP100

2.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=66/34

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.58

dbscSNV1_RF

Benign

0.59

SpliceAI score (max)

0.43

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.43

Position offset: -3

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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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