dbSNP rs536008448: PTPN5:p.Gly421Cys (chr11-18732660-C-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_006906.2(PTPN5):c.1261G>T(p.Gly421Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,658 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G421D) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PTPN5
NM_006906.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.28

Publications

0 publications found

Variant links:

Genes affected

PTPN5 (HGNC:9657): (protein tyrosine phosphatase non-receptor type 5) Enables phosphotyrosine residue binding activity. Predicted to be involved in peptidyl-tyrosine dephosphorylation. Predicted to act upstream of or within protein dephosphorylation. Predicted to be located in nucleoplasm. Predicted to be integral component of membrane. Biomarker of Alzheimer's disease. [provided by Alliance of Genome Resources, Apr 2022]

PTPN5 links:

IGSF22-AS1 (HGNC:55511): (IGSF22 antisense RNA 1)

IGSF22-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.772

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTPN5	NM_006906.2 link	c.1261G>T	p.Gly421Cys	missense_variant	Exon 12 of 15	ENST00000358540.7	NP_008837.1	P54829-1Q86TL3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPN5	ENST00000358540.7 link	c.1261G>T	p.Gly421Cys	missense_variant	Exon 12 of 15	1	NM_006906.2	ENSP00000351342.2		P54829-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461658

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727140

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:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53206

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111998

Other (OTH)

AF:

0.00

AC:

AN:

60388

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.040

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.56

.;D;.;.

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.86

D;D;D;D

M_CAP

Benign

0.082

MetaRNN

Pathogenic

0.77

D;D;D;D

MetaSVM

Uncertain

0.40

MutationAssessor

Benign

1.9

.;L;.;.

PhyloP100

5.3

PrimateAI

Benign

0.39

PROVEAN

Uncertain

-3.5

D;D;D;D

REVEL

Uncertain

0.51

Sift

Uncertain

0.027

D;D;D;D

Sift4G

Uncertain

0.053

T;T;T;T

Polyphen

0.41

.;B;.;.

Vest4

0.68

MutPred

0.43

.;Loss of phosphorylation at Y419 (P = 0.0968);.;.;

MVP

0.93

MPC

0.35

ClinPred

0.98

GERP RS

5.0

Varity_R

0.52

gMVP

0.75

Mutation Taster

=56/44

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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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rs536008448

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over