Genetic Variant PTPRZ1:p.Leu77Ile (chr7-121968055-C-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_002851.3(PTPRZ1):c.229C>A(p.Leu77Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000811 in 1,602,238 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L77F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000087 ( 0 hom. )

Consequence

PTPRZ1
NM_002851.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.12

Variant links:

Genes affected

PTPRZ1 (HGNC:9685): (protein tyrosine phosphatase receptor type Z1) This gene encodes a member of the receptor protein tyrosine phosphatase family. Expression of this gene is restricted to the central nervous system (CNS), and it may be involved in the regulation of specific developmental processes in the CNS. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, May 2011]

PTPRZ1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.35727692).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTPRZ1	NM_002851.3 link	c.229C>A	p.Leu77Ile	missense_variant	Exon 3 of 30	ENST00000393386.7	NP_002842.2	P23471-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPRZ1	ENST00000393386.7 link	c.229C>A	p.Leu77Ile	missense_variant	Exon 3 of 30	1	NM_002851.3	ENSP00000377047.2		P23471-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000606

AC:

AN:

247506

Hom.:

AF XY:

0.0000822

AC XY:

AN XY:

133850

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000120

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000463

Gnomad NFE exome

AF:

0.0000887

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000869

AC:

126

AN:

1450092

Hom.:

Cov.:

AF XY:

0.0000928

AC XY:

AN XY:

721922

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000454

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000375

Gnomad4 NFE exome

AF:

0.000102

Gnomad4 OTH exome

AF:

0.000167

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152146

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74332

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 02, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.229C>A (p.L77I) alteration is located in exon 3 (coding exon 3) of the PTPRZ1 gene. This alteration results from a C to A substitution at nucleotide position 229, causing the leucine (L) at amino acid position 77 to be replaced by an isoleucine (I). 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

0.31

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.21

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.21

T;.

Eigen

Pathogenic

0.72

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.88

D;D

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.36

T;T

MetaSVM

Uncertain

-0.064

MutationAssessor

Uncertain

2.4

M;M

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-0.78

N;N

REVEL

Uncertain

0.51

Sift

Uncertain

0.0070

D;D

Sift4G

Uncertain

0.039

D;T

Polyphen

0.94

P;.

Vest4

0.46

MVP

0.38

MPC

0.52

ClinPred

0.21

GERP RS

5.7

Varity_R

0.73

gMVP

0.72

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

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