Genetic Variant PLA2G2D:p.Met28Thr (chr1-20116435-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_012400.4(PLA2G2D):c.83T>C(p.Met28Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00029 in 1,614,148 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. M28I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00031 ( 0 hom. )

Consequence

PLA2G2D
NM_012400.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.42

Variant links:

Genes affected

PLA2G2D (HGNC:9033): (phospholipase A2 group IID) This gene encodes a secreted member of the phospholipase A2 family, and is found in a cluster of related family members on chromosome 1. Phospholipase A2 family members hydrolyze the sn-2 fatty acid ester bond of glycerophospholipids to produce lysophospholipids and free fatty acid. This gene may be involved in inflammation and immune response, and in weight loss associated with chronic obstructive pulmonary disease. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Nov 2012]

PLA2G2D 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
PLA2G2D	NM_012400.4 link	c.83T>C	p.Met28Thr	missense_variant	Exon 2 of 4	ENST00000375105.8	NP_036532.1	Q9UNK4-1
PLA2G2D	NM_001271814.2 link	c.83T>C	p.Met28Thr	missense_variant	Exon 2 of 3		NP_001258743.1	Q9UNK4-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLA2G2D	ENST00000375105.8 link	c.83T>C	p.Met28Thr	missense_variant	Exon 2 of 4	1	NM_012400.4	ENSP00000364246.3		Q9UNK4-1
PLA2G2D	ENST00000617227.1 link	c.83T>C	p.Met28Thr	missense_variant	Exon 2 of 3	1		ENSP00000482871.1		Q9UNK4-2

Frequencies

GnomAD3 genomes

AF:

0.000131

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000167

AC:

AN:

251456

Hom.:

AF XY:

0.000177

AC XY:

AN XY:

135906

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000173

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000255

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000307

AC:

449

AN:

1461884

Hom.:

Cov.:

AF XY:

0.000334

AC XY:

243

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000157

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000116

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000375

Gnomad4 OTH exome

AF:

0.000232

GnomAD4 genome

AF:

0.000125

AC:

AN:

152264

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000261

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000162

Gnomad4 OTH

AF:

0.000474

Bravo

AF:

0.000136

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000148

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 03, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.83T>C (p.M28T) alteration is located in exon 2 (coding exon 2) of the PLA2G2D gene. This alteration results from a T to C substitution at nucleotide position 83, causing the methionine (M) at amino acid position 28 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

Pathogenic

0.82

BayesDel_addAF

Benign

-0.069

BayesDel_noAF

Uncertain

-0.030

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.14

T;.

Eigen

Pathogenic

0.71

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.48

T;T

M_CAP

Benign

0.030

MetaRNN

Uncertain

0.73

D;D

MetaSVM

Benign

-0.48

MutationAssessor

Uncertain

2.9

M;.

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-5.9

D;.

REVEL

Uncertain

0.42

Sift

Pathogenic

0.0

D;.

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;.

Vest4

0.92

MVP

0.45

MPC

0.29

ClinPred

0.71

GERP RS

5.4

Varity_R

0.89

gMVP

0.64

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