7-6003992-T-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM1BP6BS1

The NM_000535.7(PMS2):c.230A>C(p.Glu77Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000349 in 1,603,160 control chromosomes in the GnomAD database, including 1 homozygotes. 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. E77K) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000038 ( 1 hom. )

Consequence

PMS2
NM_000535.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:8B:3

Conservation

PhyloP100: 5.85

Publications

3 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 -3 ACMG points.

PM1

In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 42 uncertain in NM_000535.7

BP6

Variant 7-6003992-T-G is Benign according to our data. Variant chr7-6003992-T-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 411085.

BS1

Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.0000379 (55/1450958) while in subpopulation SAS AF = 0.000616 (53/85970). AF 95% confidence interval is 0.000483. There are 1 homozygotes in GnomAdExome4. There are 41 alleles in the male GnomAdExome4 subpopulation. Median coverage is 27. This position passed quality control check.

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.230A>C	p.Glu77Ala	missense	Exon 3 of 15	NP_000526.2	P54278-1
PMS2	NM_001406866.1		c.416A>C	p.Glu139Ala	missense	Exon 4 of 16	NP_001393795.1	A0A8V8TNX6
PMS2	NM_001322014.2		c.230A>C	p.Glu77Ala	missense	Exon 3 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.230A>C	p.Glu77Ala	missense	Exon 3 of 15	ENSP00000265849.7	P54278-1
PMS2	ENST00000382321.5	TSL:1	c.230A>C	p.Glu77Ala	missense	Exon 3 of 11	ENSP00000371758.4	P54278-2
PMS2	ENST00000406569.8	TSL:1	n.230A>C		non_coding_transcript_exon	Exon 3 of 13	ENSP00000514464.1	P54278-3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152202

Hom.:

Cov.:

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:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000678

AC:

AN:

250862

AF XY:

0.0000958

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000379

AC:

AN:

1450958

Hom.:

Cov.:

AF XY:

0.0000567

AC XY:

AN XY:

722592

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33224

American (AMR)

AF:

0.00

AC:

AN:

44706

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26074

East Asian (EAS)

AF:

0.00

AC:

AN:

39616

South Asian (SAS)

AF:

0.000616

AC:

AN:

85970

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4118

European-Non Finnish (NFE)

AF:

9.06e-7

AC:

AN:

1103914

Other (OTH)

AF:

0.0000167

AC:

AN:

59924

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.459

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74358

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41458

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5206

South Asian (SAS)

AF:

0.000207

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

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:

0.00

Hom.:

ExAC

AF:

0.0000659

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 (4)

not provided (4)

Hereditary nonpolyposis colorectal neoplasms (1)

Lynch syndrome (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.0090

BayesDel_noAF

Uncertain

0.10

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.48

Eigen

Uncertain

0.43

Eigen_PC

Uncertain

0.50

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.96

M_CAP

Uncertain

0.20

MetaRNN

Uncertain

0.74

MetaSVM

Uncertain

-0.0017

MutationAssessor

Benign

1.2

PhyloP100

5.8

PrimateAI

Uncertain

0.50

PROVEAN

Uncertain

-3.8

REVEL

Pathogenic

0.76

Sift

Benign

0.045

Sift4G

Uncertain

0.028

Polyphen

0.95

Vest4

0.65

MutPred

0.53

Loss of disorder (P = 0.0304)

MVP

0.87

MPC

0.26

ClinPred

0.37

GERP RS

5.7

PromoterAI

-0.014

Neutral

(source)

Varity_R

0.77

gMVP

0.55

Mutation Taster

=53/47

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