Genetic Variant PLA2G2A:p.Leu6Leu (chr1-19978756-C-T) – ACMG Classification: Benign (-11 pts)

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_001395463.1(PLA2G2A):c.18G>A(p.Leu6Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000173 in 1,614,152 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00089 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000099 ( 1 hom. )

Consequence

PLA2G2A
NM_001395463.1 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.168

Publications

1 publications found

Variant links:

Genes affected

PLA2G2A (HGNC:9031): (phospholipase A2 group IIA) The protein encoded by this gene is a member of the phospholipase A2 family (PLA2). PLA2s constitute a diverse family of enzymes with respect to sequence, function, localization, and divalent cation requirements. This gene product belongs to group II, which contains secreted form of PLA2, an extracellular enzyme that has a low molecular mass and requires calcium ions for catalysis. It catalyzes the hydrolysis of the sn-2 fatty acid acyl ester bond of phosphoglycerides, releasing free fatty acids and lysophospholipids, and thought to participate in the regulation of the phospholipid metabolism in biomembranes. Several alternatively spliced transcript variants with different 5' UTRs have been found for this gene.[provided by RefSeq, Sep 2009]

PLA2G2A Gene-Disease associations (from GenCC):

colorectal cancer
Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

PLA2G2A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BP6

Variant 1-19978756-C-T is Benign according to our data. Variant chr1-19978756-C-T is described in ClinVar as Benign. ClinVar VariationId is 788502.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-0.168 with no splicing effect.

BS2

High AC in GnomAd4 at 135 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001395463.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PLA2G2A	NM_001395463.1	MANE Select	c.18G>A	p.Leu6Leu	synonymous	Exon 2 of 5	NP_001382392.1	P14555
PLA2G2A	NM_000300.4		c.18G>A	p.Leu6Leu	synonymous	Exon 3 of 6	NP_000291.1	P14555
PLA2G2A	NM_001161727.2		c.18G>A	p.Leu6Leu	synonymous	Exon 3 of 6	NP_001155199.1	P14555

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PLA2G2A	ENST00000482011.3	TSL:1 MANE Select	c.18G>A	p.Leu6Leu	synonymous	Exon 2 of 5	ENSP00000504762.1	P14555
PLA2G2A	ENST00000375111.7	TSL:1	c.18G>A	p.Leu6Leu	synonymous	Exon 3 of 6	ENSP00000364252.3	P14555
PLA2G2A	ENST00000400520.8	TSL:1	c.18G>A	p.Leu6Leu	synonymous	Exon 2 of 5	ENSP00000383364.3	P14555

Frequencies

GnomAD3 genomes

AF:

0.000881

AC:

134

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00316

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000478

GnomAD2 exomes

AF:

0.000227

AC:

AN:

251440

AF XY:

0.000155

show subpopulations

Gnomad AFR exome

AF:

0.00320

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000985

AC:

144

AN:

1461868

Hom.:

Cov.:

AF XY:

0.0000715

AC XY:

AN XY:

727228

show subpopulations

African (AFR)

AF:

0.00388

AC:

130

AN:

33480

American (AMR)

AF:

0.000134

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112000

Other (OTH)

AF:

0.000132

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.462

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000887

AC:

135

AN:

152284

Hom.:

Cov.:

AF XY:

0.000792

AC XY:

AN XY:

74452

show subpopulations

African (AFR)

AF:

0.00318

AC:

132

AN:

41556

American (AMR)

AF:

0.000131

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68022

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000521

Hom.:

Bravo

AF:

0.00115

ClinVar

ClinVar submissions as Germline

Significance:Benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

3.7

(source)

DANN

Benign

0.58

PhyloP100

-0.17

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over