Genetic Variant NM_000534.5:c.1888C>T (chr2-189863774-C-T) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 8P and 4B. PVS1BS2

The NM_000534.5(PMS1):c.1888C>T(p.Arg630*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000854 in 1,604,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000086 ( 0 hom. )

Consequence

PMS1
NM_000534.5 stop_gained

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:2O:1

Conservation

PhyloP100: 1.87

Publications

6 publications found

Variant links:

Genes affected

PMS1 (HGNC:9121): (PMS1 homolog 1, mismatch repair system component) This gene encodes a protein belonging to the DNA mismatch repair mutL/hexB family. This protein is thought to be involved in the repair of DNA mismatches, and it can form heterodimers with MLH1, a known DNA mismatch repair protein. Mutations in this gene cause hereditary nonpolyposis colorectal cancer type 3 (HNPCC3) either alone or in combination with mutations in other genes involved in the HNPCC phenotype, which is also known as Lynch syndrome. [provided by RefSeq, Jul 2008]

PMS1 Gene-Disease associations (from GenCC):

Lynch syndrome
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

PMS1 links:

ENSG00000300477 (HGNC:):

ENSG00000300477 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

BS2

High AC in GnomAd4 at 12 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000534.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PMS1	NM_000534.5	MANE Select	c.1888C>T	p.Arg630*	stop_gained	Exon 10 of 13	NP_000525.1
PMS1	NM_001321045.2		c.1888C>T	p.Arg630*	stop_gained	Exon 11 of 14	NP_001307974.1
PMS1	NM_001321047.2		c.1888C>T	p.Arg630*	stop_gained	Exon 10 of 13	NP_001307976.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PMS1	ENST00000441310.7	TSL:1 MANE Select	c.1888C>T	p.Arg630*	stop_gained	Exon 10 of 13	ENSP00000406490.3
PMS1	ENST00000409593.5	TSL:1	c.1212-4025C>T		intron	N/A	ENSP00000387169.1
PMS1	ENST00000424059.1	TSL:1	n.1771C>T		non_coding_transcript_exon	Exon 8 of 9

Frequencies

GnomAD3 genomes

AF:

0.0000790

AC:

AN:

151936

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000148

AC:

AN:

249896

AF XY:

0.000148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00229

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000532

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000861

AC:

125

AN:

1452064

Hom.:

Cov.:

AF XY:

0.0000844

AC XY:

AN XY:

723100

show subpopulations

African (AFR)

AF:

0.0000301

AC:

AN:

33256

American (AMR)

AF:

0.000157

AC:

AN:

44694

Ashkenazi Jewish (ASJ)

AF:

0.00219

AC:

AN:

26066

East Asian (EAS)

AF:

0.00

AC:

AN:

39634

South Asian (SAS)

AF:

0.0000930

AC:

AN:

85996

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.0000335

AC:

AN:

1103238

Other (OTH)

AF:

0.000250

AC:

AN:

60024

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.449

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:

0.0000790

AC:

AN:

151936

Hom.:

Cov.:

AF XY:

0.0000809

AC XY:

AN XY:

74202

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41314

American (AMR)

AF:

0.000131

AC:

AN:

15244

Ashkenazi Jewish (ASJ)

AF:

0.00144

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10576

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68010

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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:

0.000235

Hom.:

Bravo

AF:

0.000121

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

PMS1-related breast cancer (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.41

BayesDel_noAF

Pathogenic

0.60

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Uncertain

0.85

PhyloP100

1.9

Vest4

0.98

GERP RS

3.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=1/199

disease causing (fs/PTC)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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