Genetic Variant PTPN6:p.Arg89Cys (chr12-6952116-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_002831.6(PTPN6):c.265C>T(p.Arg89Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000547 in 1,461,880 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

PTPN6
NM_002831.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.39

Variant links:

Genes affected

PTPN6 (HGNC:9658): (protein tyrosine phosphatase non-receptor type 6) 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, mitotic cycle, and oncogenic transformation. N-terminal part of this PTP contains two tandem Src homolog (SH2) domains, which act as protein phospho-tyrosine binding domains, and mediate the interaction of this PTP with its substrates. This PTP is expressed primarily in hematopoietic cells, and functions as an important regulator of multiple signaling pathways in hematopoietic cells. This PTP has been shown to interact with, and dephosphorylate a wide spectrum of phospho-proteins involved in hematopoietic cell signaling. Multiple alternatively spliced variants of this gene, which encode distinct isoforms, have been reported. [provided by RefSeq, Jul 2008]

PTPN6 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTPN6	NM_002831.6 link	c.265C>T	p.Arg89Cys	missense_variant	Exon 3 of 16	ENST00000318974.14	NP_002822.2	P29350-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPN6	ENST00000318974.14 link	c.265C>T	p.Arg89Cys	missense_variant	Exon 3 of 16	1	NM_002831.6	ENSP00000326010.9		P29350-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000801

AC:

AN:

249656

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135380

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 SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461880

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000360

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 24, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.265C>T (p.R89C) alteration is located in exon 3 (coding exon 3) of the PTPN6 gene. This alteration results from a C to T substitution at nucleotide position 265, causing the arginine (R) at amino acid position 89 to be replaced by a cysteine (C). 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

Pathogenic

0.74

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Uncertain

0.11

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.069

T;.;.;D;.;.;T

Eigen

Uncertain

0.24

Eigen_PC

Benign

0.13

FATHMM_MKL

Benign

0.66

LIST_S2

Pathogenic

0.99

D;D;D;D;D;D;D

M_CAP

Pathogenic

0.56

MetaRNN

Uncertain

0.70

D;D;D;D;D;D;D

MetaSVM

Pathogenic

0.93

MutationAssessor

Uncertain

2.6

.;.;.;M;M;.;.

PrimateAI

Uncertain

0.58

PROVEAN

Pathogenic

-5.2

D;D;D;D;D;D;D

REVEL

Pathogenic

0.66

Sift

Uncertain

0.0010

D;D;D;D;D;D;D

Sift4G

Pathogenic

0.0010

D;D;D;D;D;D;D

Polyphen

0.99

.;.;.;D;.;.;.

Vest4

0.48, 0.36, 0.31

MutPred

0.46

.;.;Loss of disorder (P = 0.0354);Loss of disorder (P = 0.0354);Loss of disorder (P = 0.0354);Loss of disorder (P = 0.0354);.;

MVP

0.78

MPC

2.1

ClinPred

0.99

GERP RS

3.7

Varity_R

0.61

gMVP

0.55

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