rs138886038

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_000553.6(WRN):​c.3900C>A​(p.Pro1300Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000674 in 1,613,952 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P1300P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00085 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00066 ( 2 hom. )

Consequence

WRN
NM_000553.6 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:6

Conservation

PhyloP100: -1.82

Publications

2 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.57).
BP6
Variant 8-31157448-C-A is Benign according to our data. Variant chr8-31157448-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 412688.
BP7
Synonymous conserved (PhyloP=-1.83 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000848 (129/152070) while in subpopulation AMR AF = 0.0021 (32/15266). AF 95% confidence interval is 0.00153. There are 1 homozygotes in GnomAd4. There are 64 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000553.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
WRN
NM_000553.6
MANE Select
c.3900C>Ap.Pro1300Pro
synonymous
Exon 33 of 35NP_000544.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
WRN
ENST00000298139.7
TSL:1 MANE Select
c.3900C>Ap.Pro1300Pro
synonymous
Exon 33 of 35ENSP00000298139.5
WRN
ENST00000521620.5
TSL:1
n.2533C>A
non_coding_transcript_exon
Exon 21 of 23
WRN
ENST00000650667.1
n.*3514C>A
non_coding_transcript_exon
Exon 32 of 34ENSP00000498593.1

Frequencies

GnomAD3 genomes
AF:
0.000848
AC:
129
AN:
152070
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.0175
Gnomad AMR
AF:
0.00210
Gnomad ASJ
AF:
0.00202
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000985
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000501
AC:
126
AN:
251298
AF XY:
0.000515
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00104
Gnomad ASJ exome
AF:
0.00119
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000651
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000655
AC:
958
AN:
1461882
Hom.:
2
Cov.:
31
AF XY:
0.000661
AC XY:
481
AN XY:
727242
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33480
American (AMR)
AF:
0.000917
AC:
41
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00111
AC:
29
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000762
AC:
847
AN:
1112010
Other (OTH)
AF:
0.000629
AC:
38
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
60
121
181
242
302
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
36
72
108
144
180
<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:
0.000848
AC:
129
AN:
152070
Hom.:
1
Cov.:
32
AF XY:
0.000862
AC XY:
64
AN XY:
74270
show subpopulations
African (AFR)
AF:
0.000145
AC:
6
AN:
41410
American (AMR)
AF:
0.00210
AC:
32
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.00202
AC:
7
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000985
AC:
67
AN:
68012
Other (OTH)
AF:
0.000478
AC:
1
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.514
Heterozygous variant carriers
0
8
16
23
31
39
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000671
Hom.:
0
Bravo
AF:
0.000888
EpiCase
AF:
0.000763
EpiControl
AF:
0.000593

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
3
not provided (3)
-
1
2
Werner syndrome (3)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.57
CADD
Benign
0.69
DANN
Benign
0.49
PhyloP100
-1.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs138886038; hg19: chr8-31014964; COSMIC: COSV99990214; API