Genetic Variant PPIG:p.Ser557Gly (chr2-169636927-A-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004792.3(PPIG):c.1669A>G(p.Ser557Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,898 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PPIG
NM_004792.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.41

Variant links:

Genes affected

PPIG (HGNC:14650): (peptidylprolyl isomerase G) Enables cyclosporin A binding activity and peptidyl-prolyl cis-trans isomerase activity. Involved in protein peptidyl-prolyl isomerization. Located in cytosol and nuclear speck. [provided by Alliance of Genome Resources, Apr 2022]

PPIG links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07652548).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PPIG	NM_004792.3 link	c.1669A>G	p.Ser557Gly	missense_variant	Exon 14 of 14	ENST00000260970.8	NP_004783.2	Q13427-1
PPIG	XM_005246966.3 link	c.1669A>G	p.Ser557Gly	missense_variant	Exon 14 of 14		XP_005247023.1	Q13427-1
PPIG	XM_005246967.2 link	c.1669A>G	p.Ser557Gly	missense_variant	Exon 14 of 14		XP_005247024.1	Q13427-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PPIG	ENST00000260970.8 link	c.1669A>G	p.Ser557Gly	missense_variant	Exon 14 of 14	1	NM_004792.3	ENSP00000260970.3		Q13427-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461704

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727136

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152194

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 04, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1669A>G (p.S557G) alteration is located in exon 14 (coding exon 12) of the PPIG gene. This alteration results from a A to G substitution at nucleotide position 1669, causing the serine (S) at amino acid position 557 to be replaced by a glycine (G). 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

0.068

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.61

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.094

T;T;T

Eigen

Benign

-0.22

Eigen_PC

Benign

0.012

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.61

.;T;T

M_CAP

Benign

0.0037

MetaRNN

Benign

0.077

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.11

N;.;N

PrimateAI

Benign

0.48

PROVEAN

Benign

-0.48

N;N;N

REVEL

Benign

0.062

Sift

Pathogenic

0.0

D;T;D

Sift4G

Benign

0.42

T;T;T

Polyphen

0.0

B;B;B

Vest4

0.14

MutPred

0.27

Loss of phosphorylation at S557 (P = 0.0134);.;Loss of phosphorylation at S557 (P = 0.0134);

MVP

0.15

MPC

0.035

ClinPred

0.29

GERP RS

5.7

Varity_R

0.26

gMVP

0.030

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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