Variant 20-45176031-G-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The ENST00000243924.4(PI3):c.250G>T(p.Ala84Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000787 in 1,613,996 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict 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. A84T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

PI3
ENST00000243924.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.680

Variant links:

Genes affected

PI3 (HGNC:8947): (peptidase inhibitor 3) This gene encodes an elastase-specific inhibitor that functions as an antimicrobial peptide against Gram-positive and Gram-negative bacteria, and fungal pathogens. The protein contains a WAP-type four-disulfide core (WFDC) domain, and is thus a member of the WFDC domain family. Most WFDC gene members are localized to chromosome 20q12-q13 in two clusters: centromeric and telomeric. This gene belongs to the centromeric cluster. Expression of this gene is upgulated by bacterial lipopolysaccharides and cytokines. [provided by RefSeq, Oct 2014]

PI3 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=0.060620308).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PI3	NM_002638.4 linkuse as main transcript	c.250G>T	p.Ala84Ser	missense_variant	2/3	ENST00000243924.4	NP_002629.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PI3	ENST00000243924.4 linkuse as main transcript	c.250G>T	p.Ala84Ser	missense_variant	2/3	1	NM_002638.4	ENSP00000243924	P1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.0000735

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000139

AC:

AN:

251396

Hom.:

AF XY:

0.000132

AC XY:

AN XY:

135854

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000376

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000359

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000880

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000793

AC:

116

AN:

1461886

Hom.:

Cov.:

AF XY:

0.0000880

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000358

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000336

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000513

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152110

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.000113

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 19, 2024

The c.250G>T (p.A84S) alteration is located in exon 2 (coding exon 2) of the PI3 gene. This alteration results from a G to T substitution at nucleotide position 250, causing the alanine (A) at amino acid position 84 to be replaced by a serine (S). 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

0.20

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.47

CADD

Benign

4.7

DANN

Benign

0.66

DEOGEN2

Benign

0.25

Eigen

Benign

-0.78

Eigen_PC

Benign

-0.90

FATHMM_MKL

Benign

0.019

LIST_S2

Benign

0.35

M_CAP

Benign

0.015

MetaRNN

Benign

0.061

MetaSVM

Benign

-0.97

MutationAssessor

Benign

1.8

MutationTaster

Benign

1.0

PrimateAI

Benign

0.28

PROVEAN

Benign

-1.5

REVEL

Benign

0.085

Sift

Benign

0.66

Sift4G

Benign

0.63

Polyphen

0.58

Vest4

0.069

MutPred

0.27

Gain of disorder (P = 0.0536);

MVP

0.54

MPC

0.55

ClinPred

0.062

GERP RS

0.98

Varity_R

0.21

gMVP

0.18

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