Variant 2-130370094-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_014369.4(PTPN18):c.593G>A(p.Arg198His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000279 in 1,614,120 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00029 ( 0 hom. )

Consequence

PTPN18
NM_014369.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.897

Variant links:

Genes affected

PTPN18 (HGNC:9649): (protein tyrosine phosphatase non-receptor type 18) The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, the mitotic cycle, and oncogenic transformation. This PTP contains a PEST motif, which often serves as a protein-protein interaction domain, and may be related to protein intracellular half-live. This protein can differentially dephosphorylate autophosphorylated tyrosine kinases that are overexpressed in tumor tissues, and it appears to regulate HER2, a member of the epidermal growth factor receptor family of receptor tyrosine kinases. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2008]

PTPN18 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.019821674).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PTPN18	NM_014369.4 linkuse as main transcript	c.593G>A	p.Arg198His	missense_variant	8/15	ENST00000175756.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PTPN18	ENST00000175756.10 linkuse as main transcript	c.593G>A	p.Arg198His	missense_variant	8/15	1	NM_014369.4	P1	Q99952-1

Frequencies

GnomAD3 genomes

AF:

0.000191

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000367

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000219

AC:

AN:

250614

Hom.:

AF XY:

0.000192

AC XY:

AN XY:

135458

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.0000868

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000416

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000289

AC:

422

AN:

1461856

Hom.:

Cov.:

AF XY:

0.000268

AC XY:

195

AN XY:

727234

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000359

Gnomad4 OTH exome

AF:

0.000265

GnomAD4 genome

AF:

0.000190

AC:

AN:

152264

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74440

show subpopulations

Gnomad4 AFR

AF:

0.0000963

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000368

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000311

Hom.:

Bravo

AF:

0.000238

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000247

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 20, 2023

The c.593G>A (p.R198H) alteration is located in exon 8 (coding exon 8) of the PTPN18 gene. This alteration results from a G to A substitution at nucleotide position 593, causing the arginine (R) at amino acid position 198 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.075

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.40

CADD

Benign

DANN

Benign

0.46

DEOGEN2

Benign

0.11

T;.

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.39

LIST_S2

Benign

0.84

T;T

M_CAP

Benign

0.018

MetaRNN

Benign

0.020

T;T

MetaSVM

Benign

-0.88

MutationAssessor

Benign

-2.6

N;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.41

PROVEAN

Benign

4.5

N;N

REVEL

Benign

0.040

Sift

Benign

1.0

T;T

Sift4G

Benign

1.0

T;T

Polyphen

0.0030

B;.

Vest4

0.13

MVP

0.53

MPC

0.23

ClinPred

0.051

GERP RS

-0.087

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.13

gMVP

0.29

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over