dbSNP rs781741859: WRN:p.Ile239Leu (chr8-31068318-A-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000553.6(WRN):c.715A>C(p.Ile239Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,453,354 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

WRN
NM_000553.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.108

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.055822074).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WRN	NM_000553.6 link	c.715A>C	p.Ile239Leu	missense_variant	Exon 7 of 35	ENST00000298139.7	NP_000544.2	Q14191

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
WRN	ENST00000298139.7 link	c.715A>C	p.Ile239Leu	missense_variant	Exon 7 of 35	1	NM_000553.6	ENSP00000298139.5	Q14191
WRN	ENST00000651642.1 link	c.10A>C	p.Ile4Leu	missense_variant	Exon 1 of 4			ENSP00000498779.1	A0A494C0Y6
WRN	ENST00000650667.1 link	n.*329A>C		non_coding_transcript_exon_variant	Exon 6 of 34			ENSP00000498593.1	A0A494C0M3
WRN	ENST00000650667.1 link	n.*329A>C		3_prime_UTR_variant	Exon 6 of 34			ENSP00000498593.1	A0A494C0M3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000809

AC:

AN:

247106

Hom.:

AF XY:

0.0000150

AC XY:

AN XY:

133590

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000180

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000138

AC:

AN:

1453354

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

723146

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000181

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.71

CADD

Benign

0.71

DANN

Benign

0.35

DEOGEN2

Benign

0.051

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.032

LIST_S2

Benign

0.48

M_CAP

Benign

0.0035

MetaRNN

Benign

0.056

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.0

PrimateAI

Benign

0.34

PROVEAN

Benign

-0.21

REVEL

Benign

0.0060

Sift

Benign

1.0

Sift4G

Benign

0.82

Polyphen

0.0

Vest4

0.16

MutPred

0.29

Loss of methylation at K241 (P = 0.0588);

MVP

0.24

MPC

0.064

ClinPred

0.021

GERP RS

-1.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.044

gMVP

0.20

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over