chr8-31150444-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000298139.7(WRN):​c.3676A>T​(p.Asn1226Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,808 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N1226D) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

WRN
ENST00000298139.7 missense

Scores

2
6
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.34
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 Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
WRNNM_000553.6 linkuse as main transcriptc.3676A>T p.Asn1226Tyr missense_variant 31/35 ENST00000298139.7 NP_000544.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
WRNENST00000298139.7 linkuse as main transcriptc.3676A>T p.Asn1226Tyr missense_variant 31/351 NM_000553.6 ENSP00000298139 P1
WRNENST00000521620.5 linkuse as main transcriptn.2309A>T non_coding_transcript_exon_variant 19/231
WRNENST00000650667.1 linkuse as main transcriptc.*3290A>T 3_prime_UTR_variant, NMD_transcript_variant 30/34 ENSP00000498593

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251418
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135884
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461808
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727198
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Uncertain
0.069
T
BayesDel_noAF
Benign
-0.14
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.34
T
Eigen
Uncertain
0.23
Eigen_PC
Benign
0.12
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.80
T
M_CAP
Benign
0.024
T
MetaRNN
Uncertain
0.70
D
MetaSVM
Benign
-0.56
T
MutationAssessor
Pathogenic
3.5
M
MutationTaster
Benign
0.98
N
PrimateAI
Benign
0.39
T
PROVEAN
Pathogenic
-4.7
D
REVEL
Benign
0.24
Sift
Uncertain
0.017
D
Sift4G
Benign
0.11
T
Polyphen
0.69
P
Vest4
0.56
MutPred
0.43
Loss of disorder (P = 0.0551);
MVP
0.77
MPC
0.41
ClinPred
0.97
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.29
gMVP
0.44

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs566277794; hg19: chr8-31007960; API