rs4987239

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000553.6(WRN):​c.355+20A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.057 in 1,612,694 control chromosomes in the GnomAD database, including 2,926 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.045 ( 184 hom., cov: 33)
Exomes 𝑓: 0.058 ( 2742 hom. )

Consequence

WRN
NM_000553.6 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.140
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 8-31064454-A-T is Benign according to our data. Variant chr8-31064454-A-T is described in ClinVar as [Benign]. Clinvar id is 256709.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-31064454-A-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.0732 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
WRNNM_000553.6 linkuse as main transcriptc.355+20A>T intron_variant ENST00000298139.7 NP_000544.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
WRNENST00000298139.7 linkuse as main transcriptc.355+20A>T intron_variant 1 NM_000553.6 ENSP00000298139 P1
WRNENST00000650667.1 linkuse as main transcriptc.210-461A>T intron_variant, NMD_transcript_variant ENSP00000498593

Frequencies

GnomAD3 genomes
AF:
0.0447
AC:
6804
AN:
152122
Hom.:
183
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0166
Gnomad AMI
AF:
0.107
Gnomad AMR
AF:
0.0305
Gnomad ASJ
AF:
0.0452
Gnomad EAS
AF:
0.0237
Gnomad SAS
AF:
0.0793
Gnomad FIN
AF:
0.0695
Gnomad MID
AF:
0.0285
Gnomad NFE
AF:
0.0596
Gnomad OTH
AF:
0.0431
GnomAD3 exomes
AF:
0.0496
AC:
12456
AN:
251284
Hom.:
404
AF XY:
0.0519
AC XY:
7047
AN XY:
135836
show subpopulations
Gnomad AFR exome
AF:
0.0149
Gnomad AMR exome
AF:
0.0202
Gnomad ASJ exome
AF:
0.0441
Gnomad EAS exome
AF:
0.0213
Gnomad SAS exome
AF:
0.0779
Gnomad FIN exome
AF:
0.0682
Gnomad NFE exome
AF:
0.0576
Gnomad OTH exome
AF:
0.0452
GnomAD4 exome
AF:
0.0583
AC:
85146
AN:
1460454
Hom.:
2742
Cov.:
31
AF XY:
0.0592
AC XY:
42992
AN XY:
726572
show subpopulations
Gnomad4 AFR exome
AF:
0.0141
Gnomad4 AMR exome
AF:
0.0213
Gnomad4 ASJ exome
AF:
0.0444
Gnomad4 EAS exome
AF:
0.0231
Gnomad4 SAS exome
AF:
0.0752
Gnomad4 FIN exome
AF:
0.0664
Gnomad4 NFE exome
AF:
0.0613
Gnomad4 OTH exome
AF:
0.0534
GnomAD4 genome
AF:
0.0447
AC:
6806
AN:
152240
Hom.:
184
Cov.:
33
AF XY:
0.0451
AC XY:
3358
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.0166
Gnomad4 AMR
AF:
0.0305
Gnomad4 ASJ
AF:
0.0452
Gnomad4 EAS
AF:
0.0235
Gnomad4 SAS
AF:
0.0798
Gnomad4 FIN
AF:
0.0695
Gnomad4 NFE
AF:
0.0596
Gnomad4 OTH
AF:
0.0432
Alfa
AF:
0.0508
Hom.:
35
Bravo
AF:
0.0394
Asia WGS
AF:
0.0550
AC:
191
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Werner syndrome Benign:2
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabDec 05, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxAug 03, 2018- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Wiskott-Aldrich syndrome Benign:1
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
1.4
DANN
Benign
0.54

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs4987239; hg19: chr8-30921970; COSMIC: COSV53301844; API