Genetic Variant PPIL2:p.Thr200Ala (chr22-21684797-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

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

The NM_014337.4(PPIL2):c.598A>G(p.Thr200Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000905 in 1,614,082 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00048 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000050 ( 0 hom. )

Consequence

PPIL2
NM_014337.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.11

Variant links:

Genes affected

PPIL2 (HGNC:9261): (peptidylprolyl isomerase like 2) This gene is a member of the cyclophilin family of peptidylprolyl isomerases. The cyclophilins are a highly conserved ubiquitous family, members of which play an important role in protein folding, immunosuppression by cyclosporin A, and infection of HIV-1 virions. This protein interacts with the proteinase inhibitor eglin c and is localized in the nucleus. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Dec 2015]

PPIL2 links:

Genome browser will be placed here

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=0.017438412).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PPIL2	NM_014337.4 link	c.598A>G	p.Thr200Ala	missense_variant	Exon 10 of 20	ENST00000398831.8	NP_055152.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PPIL2	ENST00000398831.8 link	c.598A>G	p.Thr200Ala	missense_variant	Exon 10 of 20	1	NM_014337.4	ENSP00000381812.3		Q13356-1

Frequencies

GnomAD3 genomes

AF:

0.000479

AC:

AN:

152246

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00171

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:

0.00

Gnomad OTH

AF:

0.000957

GnomAD3 exomes

AF:

0.000135

AC:

AN:

251436

Hom.:

AF XY:

0.000147

AC XY:

AN XY:

135902

show subpopulations

Gnomad AFR exome

AF:

0.00179

Gnomad AMR exome

AF:

0.000145

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000499

AC:

AN:

1461836

Hom.:

Cov.:

AF XY:

0.0000454

AC XY:

AN XY:

727224

show subpopulations

Gnomad4 AFR exome

AF:

0.00176

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.000479

AC:

AN:

152246

Hom.:

Cov.:

AF XY:

0.000551

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.00171

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:

0.00

Gnomad4 OTH

AF:

0.000957

Alfa

AF:

0.000612

Hom.:

Bravo

AF:

0.000567

ESP6500AA

AF:

0.00113

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000173

AC:

Asia WGS

AF:

0.000289

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

May 04, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.598A>G (p.T200A) alteration is located in exon 10 (coding exon 10) of the PPIL2 gene. This alteration results from a A to G substitution at nucleotide position 598, causing the threonine (T) at amino acid position 200 to be replaced by an alanine (A). 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

0.069

BayesDel_addAF

Benign

-0.53

BayesDel_noAF

Benign

-0.55

CADD

Benign

DANN

Benign

0.74

DEOGEN2

Benign

0.067

T;T;.;T

Eigen

Benign

-0.37

Eigen_PC

Benign

-0.22

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.87

.;.;D;D

M_CAP

Benign

0.022

MetaRNN

Benign

0.017

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.99

L;L;L;L

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.63

N;N;.;N

REVEL

Benign

0.043

Sift

Benign

0.54

T;T;.;T

Sift4G

Benign

0.86

T;T;T;T

Polyphen

0.0020

B;B;B;B

Vest4

0.21

MVP

0.38

ClinPred

0.019

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.085

gMVP

0.53

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