Genetic Variant PLA2G4F:p.Ala837Thr (chr15-42142025-C-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_213600.4(PLA2G4F):c.2509G>A(p.Ala837Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000684 in 1,461,794 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

PLA2G4F
NM_213600.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.72

Variant links:

Genes affected

PLA2G4F (HGNC:27396): (phospholipase A2 group IVF) Predicted to enable calcium ion binding activity; calcium-dependent phospholipase A2 activity; and calcium-dependent phospholipid binding activity. Predicted to be involved in glycerophospholipid catabolic process. Predicted to act upstream of or within several processes, including arachidonic acid secretion; cellular response to antibiotic; and prostaglandin biosynthetic process. Predicted to be located in cytoplasm. Predicted to be active in cytosol; ruffle membrane; and vesicle. [provided by Alliance of Genome Resources, Apr 2022]

PLA2G4F links:

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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
PLA2G4F	NM_213600.4 link	c.2509G>A	p.Ala837Thr	missense_variant	Exon 20 of 20	ENST00000397272.7	NP_998765.3	Q68DD2-1A5PKZ7
PLA2G4F	NR_033151.2 link	n.2523G>A		non_coding_transcript_exon_variant	Exon 19 of 19

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLA2G4F	ENST00000397272.7 link	c.2509G>A	p.Ala837Thr	missense_variant	Exon 20 of 20	1	NM_213600.4	ENSP00000380442.4		Q68DD2-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000438

AC:

AN:

251408

Hom.:

AF XY:

0.0000515

AC XY:

AN XY:

135888

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000318

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:

0.00000684

AC:

AN:

1461794

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727200

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000224

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

Cov.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2509G>A (p.A837T) alteration is located in exon 20 (coding exon 20) of the PLA2G4F gene. This alteration results from a G to A substitution at nucleotide position 2509, causing the alanine (A) at amino acid position 837 to be replaced by a threonine (T). 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

0.19

BayesDel_addAF

Benign

-0.021

BayesDel_noAF

Uncertain

0.040

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.096

Eigen

Pathogenic

0.69

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.70

M_CAP

Benign

0.0084

MetaRNN

Uncertain

0.45

MetaSVM

Benign

-1.2

MutationAssessor

Uncertain

2.7

PrimateAI

Benign

0.47

REVEL

Benign

0.20

Sift4G

Uncertain

0.0040

Polyphen

1.0

Vest4

0.55

MVP

0.40

ClinPred

0.81

GERP RS

5.2

Varity_R

0.56

gMVP

0.44

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