Genetic Variant PTPRD:p.Val1482Leu (chr9-8376669-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_002839.4(PTPRD):c.4444G>C(p.Val1482Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,460,928 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PTPRD
NM_002839.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.72

Publications

0 publications found

Variant links:

Genes affected

PTPRD (HGNC:9668): (protein tyrosine phosphatase receptor type D) 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. This PTP contains an extracellular region, a single transmembrane segment and two tandem intracytoplasmic catalytic domains, and thus represents a receptor-type PTP. The extracellular region of this protein is composed of three Ig-like and eight fibronectin type III-like domains. Studies of the similar genes in chicken and fly suggest the role of this PTP is in promoting neurite growth, and regulating neurons axon guidance. Multiple alternatively spliced transcript variants of this gene have been reported. A related pseudogene has been identified on chromosome 5. [provided by RefSeq, Jan 2010]

PTPRD links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTPRD	NM_002839.4 link	c.4444G>C	p.Val1482Leu	missense_variant	Exon 38 of 46	ENST00000381196.9	NP_002830.1	P23468-1Q2HXI4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPRD	ENST00000381196.9 link	c.4444G>C	p.Val1482Leu	missense_variant	Exon 38 of 46	5	NM_002839.4	ENSP00000370593.3		P23468-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1460928

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726782

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33422

American (AMR)

AF:

0.00

AC:

AN:

44620

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26086

East Asian (EAS)

AF:

0.00

AC:

AN:

39678

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86244

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53404

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111386

Other (OTH)

AF:

0.00

AC:

AN:

60328

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

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 04, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.4444G>C (p.V1482L) alteration is located in exon 38 (coding exon 27) of the PTPRD gene. This alteration results from a G to C substitution at nucleotide position 4444, causing the valine (V) at amino acid position 1482 to be replaced by a leucine (L). 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

0.68

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Uncertain

0.080

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.76

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

Eigen

Uncertain

0.37

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Uncertain

0.97

M_CAP

Benign

0.037

MetaRNN

Uncertain

0.62

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

MetaSVM

Benign

-0.37

MutationAssessor

Uncertain

2.3

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

PhyloP100

4.7

PrimateAI

Pathogenic

0.81

PROVEAN

Uncertain

-2.7

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

REVEL

Uncertain

0.40

Sift

Uncertain

0.0020

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

Sift4G

Uncertain

0.0030

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

Polyphen

0.48

P;.;.;B;.;P;P;.;.

Vest4

0.75

MutPred

0.75

Loss of sheet (P = 0.0817);.;.;.;.;Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);.;.;

MVP

0.49

ClinPred

0.96

GERP RS

5.6

Varity_R

0.62

gMVP

0.65

Mutation Taster

=78/22

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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over