rs371538747
Variant summary
Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate
The NM_000553.6(WRN):c.327T>A(p.Cys109Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )
Consequence
WRN
NM_000553.6 stop_gained
NM_000553.6 stop_gained
Scores
2
4
1
Clinical Significance
Conservation
PhyloP100: -0.0320
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 Pathogenic. Variant got 12 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 8-31064406-T-A is Pathogenic according to our data. Variant chr8-31064406-T-A is described in ClinVar as [Pathogenic]. Clinvar id is 458445.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
WRN | NM_000553.6 | c.327T>A | p.Cys109Ter | stop_gained | 4/35 | ENST00000298139.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
WRN | ENST00000298139.7 | c.327T>A | p.Cys109Ter | stop_gained | 4/35 | 1 | NM_000553.6 | P1 | |
WRN | ENST00000650667.1 | c.210-509T>A | intron_variant, NMD_transcript_variant |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461812Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4AN XY: 727204
GnomAD4 exome
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5
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1461812
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31
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4
AN XY:
727204
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GnomAD4 genome ? Cov.: 33
GnomAD4 genome
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Cov.:
33
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Werner syndrome Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jun 14, 2019 | For these reasons, this variant has been classified as Pathogenic. Loss-of-function variants in WRN are known to be pathogenic (PMID: 16673358). This variant has not been reported in the literature in individuals with WRN-related conditions. ClinVar contains an entry for this variant (Variation ID: 458445). This variant is not present in population databases (ExAC no frequency). This sequence change creates a premature translational stop signal (p.Cys109*) in the WRN gene. It is expected to result in an absent or disrupted protein product. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
MutationTaster
Benign
A
Vest4
GERP RS
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at