Genetic Variant PLA2G4D:p.Arg747Ser (chr15-42068933-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_178034.4(PLA2G4D):c.2239C>A(p.Arg747Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000137 in 1,609,444 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. R747G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

PLA2G4D
NM_178034.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.03

Variant links:

Genes affected

PLA2G4D (HGNC:30038): (phospholipase A2 group IVD) The phospholipase A2 enzyme family, including PLA2G4D, catalyze the hydrolysis of glycerophospholipids at the sn-2 position and then liberate free fatty acids and lysophospholipids (Chiba et al., 2004 [PubMed 14709560]).[supplied by OMIM, Jun 2009]

PLA2G4D 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 rank	MANE	Protein	UniProt
PLA2G4D	NM_178034.4 link	c.2239C>A	p.Arg747Ser	missense_variant	Exon 20 of 20	ENST00000290472.4	NP_828848.3	Q86XP0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLA2G4D	ENST00000290472.4 link	c.2239C>A	p.Arg747Ser	missense_variant	Exon 20 of 20	1	NM_178034.4	ENSP00000290472.3		Q86XP0-1
PLA2G4D	ENST00000560932.1 link	n.1392C>A		non_coding_transcript_exon_variant	Exon 5 of 5	1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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

GnomAD3 exomes

AF:

0.0000127

AC:

AN:

235420

Hom.:

AF XY:

0.00000780

AC XY:

AN XY:

128268

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000888

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:

0.0000144

AC:

AN:

1457272

Hom.:

Cov.:

AF XY:

0.00000966

AC XY:

AN XY:

724696

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000450

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:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

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

Alfa

AF:

0.0000364

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 03, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2239C>A (p.R747S) alteration is located in exon 20 (coding exon 20) of the PLA2G4D gene. This alteration results from a C to A substitution at nucleotide position 2239, causing the arginine (R) at amino acid position 747 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

Pathogenic

0.84

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.21

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.41

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.86

M_CAP

Benign

0.016

MetaRNN

Uncertain

0.56

MetaSVM

Benign

-1.1

MutationAssessor

Pathogenic

3.5

PrimateAI

Benign

0.39

PROVEAN

Pathogenic

-5.9

REVEL

Benign

0.17

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.89

Vest4

0.47

MutPred

0.54

Gain of glycosylation at R747 (P = 0.0357);

MVP

0.67

MPC

0.36

ClinPred

0.99

GERP RS

4.7

Varity_R

0.92

gMVP

0.76

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