7-5977686-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_000535.7(PMS2):c.2347G>A(p.Val783Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000532 in 150,330 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V783F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000060 ( 2 hom. )

Failed GnomAD Quality Control

Consequence

PMS2
NM_000535.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:10B:2

Conservation

PhyloP100: 3.52

Publications

5 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: Orphanet, ClinGen
Lynch syndrome 4
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
mismatch repair cancer syndrome 1
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
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

PMS2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.03962004).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000535.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PMS2	NM_000535.7	MANE Select	c.2347G>A	p.Val783Ile	missense	Exon 14 of 15	NP_000526.2	P54278-1
PMS2	NM_001406866.1		c.2533G>A	p.Val845Ile	missense	Exon 15 of 16	NP_001393795.1	A0A8V8TNX6
PMS2	NM_001322014.2		c.2380G>A	p.Val794Ile	missense	Exon 14 of 15	NP_001308943.1	A0A8V8TQ50

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PMS2	ENST00000265849.12	TSL:1 MANE Select	c.2347G>A	p.Val783Ile	missense	Exon 14 of 15	ENSP00000265849.7	P54278-1
PMS2	ENST00000382321.5	TSL:1	c.1144G>A	p.Val382Ile	missense	Exon 10 of 11	ENSP00000371758.4	P54278-2
PMS2	ENST00000406569.8	TSL:1	n.1707G>A		non_coding_transcript_exon	Exon 12 of 13	ENSP00000514464.1	P54278-3

Frequencies

GnomAD3 genomes

AF:

0.0000532

AC:

AN:

150330

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000245

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000634

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000593

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000560

AC:

AN:

250156

AF XY:

0.0000592

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000546

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000620

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000604

AC:

AN:

1455792

Hom.:

Cov.:

AF XY:

0.0000525

AC XY:

AN XY:

724212

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:

AN:

33284

American (AMR)

AF:

0.00

AC:

AN:

44682

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26096

East Asian (EAS)

AF:

0.0000760

AC:

AN:

39464

South Asian (SAS)

AF:

0.000210

AC:

AN:

85888

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53072

Middle Eastern (MID)

AF:

0.000697

AC:

AN:

5742

European-Non Finnish (NFE)

AF:

0.0000542

AC:

AN:

1107414

Other (OTH)

AF:

0.0000499

AC:

AN:

60150

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.329

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.0000532

AC:

AN:

150330

Hom.:

Cov.:

AF XY:

0.0000546

AC XY:

AN XY:

73250

show subpopulations

African (AFR)

AF:

0.0000245

AC:

AN:

40884

American (AMR)

AF:

0.00

AC:

AN:

15108

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3454

East Asian (EAS)

AF:

0.00

AC:

AN:

5094

South Asian (SAS)

AF:

0.000634

AC:

AN:

4730

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10340

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000593

AC:

AN:

67442

Other (OTH)

AF:

0.00

AC:

AN:

2052

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.406

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000226

Hom.:

ExAC

AF:

0.0000744

AC:

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary cancer-predisposing syndrome (3)

Lynch syndrome 4 (3)

not provided (2)

not specified (2)

Hereditary nonpolyposis colorectal neoplasms (1)

Lynch syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.060

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.45

CADD

Benign

9.0

(source)

DANN

Benign

0.38

DEOGEN2

Benign

0.051

Eigen

Benign

-0.88

Eigen_PC

Benign

-0.61

FATHMM_MKL

Benign

0.33

LIST_S2

Benign

0.76

M_CAP

Benign

0.018

MetaRNN

Benign

0.040

MetaSVM

Benign

-0.97

MutationAssessor

Benign

-1.0

PhyloP100

3.5

PrimateAI

Uncertain

0.53

PROVEAN

Benign

0.52

REVEL

Benign

0.085

Sift

Benign

1.0

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.20

MutPred

0.48

Gain of loop (P = 0.2045)

MVP

0.54

MPC

1.5

ClinPred

0.027

GERP RS

3.4

Varity_R

0.044

gMVP

0.23

Mutation Taster

=98/2

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over