chr7-6003690-C-A

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2PM5PP3_Strong

The NM_000535.7(PMS2):​c.353G>T​(p.Ser118Ile) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S118N) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

PMS2
NM_000535.7 missense, splice_region

Scores

12
6
1
Splicing: ADA: 1.000
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.30

Publications

1 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

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr7-6003690-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 525724.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PMS2NM_000535.7 linkc.353G>T p.Ser118Ile missense_variant, splice_region_variant Exon 4 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.353G>T p.Ser118Ile missense_variant, splice_region_variant Exon 4 of 15 1 NM_000535.7 ENSP00000265849.7 P54278-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1380492
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
691286
African (AFR)
AF:
0.00
AC:
0
AN:
32244
American (AMR)
AF:
0.00
AC:
0
AN:
44640
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25724
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39294
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84648
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
39056
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4346
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1052720
Other (OTH)
AF:
0.00
AC:
0
AN:
57820
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Lynch syndrome Uncertain:1
May 01, 2018
University of Washington Department of Laboratory Medicine, University of Washington
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PMS2 NM_000535.5:c.353G>T has a 86.7% probability of pathogenicity based on combining prior probability from public data with a likelihood ratio of 0.20 to 1, generated from evidence of seeing this as a somatic mutation in a tumor without loss of heterozygosity at the PMS2 locus. See Shirts et al 2018, PMID 29887214. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.33
CADD
Pathogenic
35
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.79
D;.
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.93
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D;D
M_CAP
Pathogenic
0.32
D
MetaRNN
Pathogenic
0.93
D;D
MetaSVM
Pathogenic
0.80
D
MutationAssessor
Pathogenic
4.3
H;H
PhyloP100
7.3
PrimateAI
Uncertain
0.72
T
PROVEAN
Pathogenic
-4.7
D;D
REVEL
Pathogenic
0.82
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.0050
D;D
Polyphen
1.0
D;D
Vest4
0.98
MutPred
0.66
Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);
MVP
0.95
MPC
0.29
ClinPred
1.0
D
GERP RS
5.7
PromoterAI
0.022
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.98
gMVP
0.90
Mutation Taster
=0/100
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
1.0
SpliceAI score (max)
0.84
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.84
Position offset: 0

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1394474494; hg19: chr7-6043321; API