Variant 1-203055629-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001304331.2(PPFIA4):c.2027G>T(p.Arg676Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000124 in 1,613,856 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R676C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

PPFIA4
NM_001304331.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.93

Variant links:

Genes affected

PPFIA4 (HGNC:9248): (PTPRF interacting protein alpha 4) PPFIA4, or liprin-alpha-4, belongs to the liprin-alpha gene family. See liprin-alpha-1 (LIP1, or PPFIA1; MIM 611054) for background on liprins.[supplied by OMIM, Mar 2008]

PPFIA4 links:

PPFIA4 (HGNC:):

PPFIA4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PPFIA4	NM_001304331.2 linkuse as main transcript	c.2027G>T	p.Arg676Leu	missense_variant	16/30	ENST00000295706.9	NP_001291260.1	O75335A0A8J8YUZ5B4DIS5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PPFIA4	ENST00000295706.9 linkuse as main transcript	c.2027G>T	p.Arg676Leu	missense_variant	16/30	5	NM_001304331.2	ENSP00000295706.5		A0A8J8YUZ5

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000889

AC:

AN:

1461690

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727124

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000899

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74306

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

EpiCase

AF:

0.0000545

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 24, 2023

The c.509G>T (p.R170L) alteration is located in exon 3 (coding exon 3) of the PPFIA4 gene. This alteration results from a G to T substitution at nucleotide position 509, causing the arginine (R) at amino acid position 170 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

Benign

0.28

BayesDel_addAF

Benign

0.0099

BayesDel_noAF

Benign

-0.22

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.079

T;.;T;.;.

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.93

D;D;D;D;.

M_CAP

Benign

0.036

MetaRNN

Uncertain

0.60

D;D;D;D;D

MetaSVM

Benign

-0.86

MutationAssessor

Uncertain

2.3

.;.;M;.;.

PrimateAI

Benign

0.47

PROVEAN

Uncertain

-3.9

D;D;D;D;.

REVEL

Benign

0.14

Sift

Benign

0.070

T;T;D;T;.

Sift4G

Benign

0.071

T;T;T;T;T

Polyphen

1.0

.;D;.;.;D

Vest4

0.68

MVP

0.78

MPC

1.2

ClinPred

0.99

GERP RS

5.6

Varity_R

0.25

gMVP

0.57

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