rs776493195

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The ENST00000406569.8(PMS2):​n.*233G>T variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000087 ( 0 hom., cov: 19)
Exomes 𝑓: 0.0000073 ( 0 hom. )

Consequence

PMS2
ENST00000406569.8 non_coding_transcript_exon

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: -3.46

Publications

0 publications found
Variant links:
Genes affected
PMS2 (HGNC:9122): (PMS1 homolog 2, mismatch repair system component) The protein encoded by this gene is a key component of the mismatch repair system that functions to correct DNA mismatches and small insertions and deletions that can occur during DNA replication and homologous recombination. This protein forms heterodimers with the gene product of the mutL homolog 1 (MLH1) gene to form the MutL-alpha heterodimer. The MutL-alpha heterodimer possesses an endonucleolytic activity that is activated following recognition of mismatches and insertion/deletion loops by the MutS-alpha and MutS-beta heterodimers, and is necessary for removal of the mismatched DNA. There is a DQHA(X)2E(X)4E motif found at the C-terminus of the protein encoded by this gene that forms part of the active site of the nuclease. Mutations in this gene have been associated with hereditary nonpolyposis colorectal cancer (HNPCC; also known as Lynch syndrome) and Turcot syndrome. [provided by RefSeq, Apr 2016]
PMS2 Gene-Disease associations (from GenCC):
  • Lynch syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • Lynch syndrome 4
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • mismatch repair cancer syndrome 1
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • mismatch repair cancer syndrome 4
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • malignant pancreatic neoplasm
    Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
  • ovarian cancer
    Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
  • Muir-Torre syndrome
    Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
  • rhabdomyosarcoma
    Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
  • breast cancer
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
  • prostate cancer
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
  • hereditary breast carcinoma
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.91).
BP6
Variant 7-5973396-C-A is Benign according to our data. Variant chr7-5973396-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 486046.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PMS2NM_000535.7 linkc.*3G>T 3_prime_UTR_variant Exon 15 of 15 ENST00000265849.12 NP_000526.2 P54278-1Q7Z3Q2B4DGM0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PMS2ENST00000265849.12 linkc.*3G>T 3_prime_UTR_variant Exon 15 of 15 1 NM_000535.7 ENSP00000265849.7 P54278-1

Frequencies

GnomAD3 genomes
AF:
0.00000867
AC:
1
AN:
115298
Hom.:
0
Cov.:
19
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000279
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000402
AC:
8
AN:
199080
AF XY:
0.0000369
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000527
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000733
AC:
6
AN:
818394
Hom.:
0
Cov.:
11
AF XY:
0.00000705
AC XY:
3
AN XY:
425602
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
20698
American (AMR)
AF:
0.00
AC:
0
AN:
35490
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
20372
East Asian (EAS)
AF:
0.000160
AC:
5
AN:
31246
South Asian (SAS)
AF:
0.00
AC:
0
AN:
65762
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
46276
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
2970
European-Non Finnish (NFE)
AF:
0.00000179
AC:
1
AN:
557808
Other (OTH)
AF:
0.00
AC:
0
AN:
37772
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000406421), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.367
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.00000867
AC:
1
AN:
115298
Hom.:
0
Cov.:
19
AF XY:
0.0000182
AC XY:
1
AN XY:
54944
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30412
American (AMR)
AF:
0.00
AC:
0
AN:
10874
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2866
East Asian (EAS)
AF:
0.000279
AC:
1
AN:
3580
South Asian (SAS)
AF:
0.00
AC:
0
AN:
3200
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
7630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
258
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
54234
Other (OTH)
AF:
0.00
AC:
0
AN:
1478
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.725
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Dec 19, 2022
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

To the best of our knowledge, the variant has not been reported in the published literature. The frequency of this variant in the general population, 0.00056 (9/16132 chromosomes in East Asian subpopulation, http://gnomad.broadinstitute.org), is higher than would generally be expected for pathogenic variants in this gene. Based on the available information, we are unable to determine the clinical significance of this variant. -

Hereditary cancer-predisposing syndrome Uncertain:1
Jun 06, 2017
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.*3G>T variant is located in the 3' untranslated region (3&rsquo; UTR) of the PMS2 gene. This variant results from a G to T substitution 3 nucleotides downstream of the last translated codon. This nucleotide position is poorly conserved in available vertebrate species. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Lynch syndrome 4 Benign:1
Feb 04, 2025
Myriad Genetics, Inc.
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered benign. This variant occurs in the non-coding 3' untranslated region of the gene, and is not expected to impact protein function. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.91
CADD
Benign
0.068
DANN
Benign
0.71
PhyloP100
-3.5

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: rs776493195; hg19: chr7-6013027; API