Genetic Variant PLAAT3:p.Ala43Ser (chr11-63590360-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001128203.2(PLAAT3):c.127G>T(p.Ala43Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,486 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A43T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PLAAT3
NM_001128203.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.639

Publications

1 publications found

Variant links:

Genes affected

PLAAT3 (HGNC:17825): (phospholipase A and acyltransferase 3) Enables N-acyltransferase activity; phospholipase A1 activity; and phospholipase A2 activity. Involved in N-acylphosphatidylethanolamine metabolic process. Predicted to be located in several cellular components, including lysosome; nuclear envelope; and peroxisome. Predicted to be active in cytoplasm. Biomarker of seminoma. [provided by Alliance of Genome Resources, Apr 2022]

PLAAT3 Gene-Disease associations (from GenCC):

lipodystrophy, familial partial, type 9
Inheritance: AR Classification: LIMITED Submitted by: G2P, Ambry Genetics

PLAAT3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1172505).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLAAT3	NM_001128203.2 link	c.127G>T	p.Ala43Ser	missense_variant	Exon 4 of 5	ENST00000415826.3	NP_001121675.1	P53816A0A024R561
PLAAT3	NM_007069.3 link	c.127G>T	p.Ala43Ser	missense_variant	Exon 3 of 4		NP_009000.2	P53816A0A024R561
PLAAT3	XM_011544741.2 link	c.172G>T	p.Ala58Ser	missense_variant	Exon 3 of 4		XP_011543043.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLAAT3	ENST00000415826.3 link	c.127G>T	p.Ala43Ser	missense_variant	Exon 4 of 5	2	NM_001128203.2	ENSP00000389124.1		P53816

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461486

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727070

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53214

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111852

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.65

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.021

T;.;T

Eigen

Benign

-0.83

Eigen_PC

Benign

-0.81

FATHMM_MKL

Benign

0.20

LIST_S2

Benign

0.32

.;T;T

M_CAP

Benign

0.0085

MetaRNN

Benign

0.12

T;T;T

MetaSVM

Benign

-0.97

PhyloP100

0.64

PrimateAI

Benign

0.39

PROVEAN

Benign

-1.3

N;.;N

REVEL

Benign

0.042

Sift

Benign

0.17

T;.;T

Sift4G

Benign

0.56

T;.;T

Polyphen

0.021

B;.;B

Vest4

0.13

MutPred

0.27

Gain of glycosylation at A43 (P = 8e-04);.;Gain of glycosylation at A43 (P = 8e-04);

MVP

0.27

MPC

0.28

ClinPred

0.23

GERP RS

2.5

Varity_R

0.058

gMVP

0.25

Mutation Taster

=87/13

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over