rs76718524

chr22-38126417-G-Achr22-38126417-G-Cchr22-38126417-G-T

Variant summary

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

The NM_003560.4(PLA2G6):c.1381C>T(p.Arg461Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00017 in 1,613,576 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. R461Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

PLA2G6
NM_003560.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.14

Variant links:

Genes affected

PLA2G6 (HGNC:9039): (phospholipase A2 group VI) The protein encoded by this gene is an A2 phospholipase, a class of enzyme that catalyzes the release of fatty acids from phospholipids. The encoded protein may play a role in phospholipid remodelling, arachidonic acid release, leukotriene and prostaglandin synthesis, fas-mediated apoptosis, and transmembrane ion flux in glucose-stimulated B-cells. Several transcript variants encoding multiple isoforms have been described, but the full-length nature of only three of them have been determined to date. [provided by RefSeq, Dec 2010]

PLA2G6 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/exons	MANE	UniProt
PLA2G6	NM_003560.4 linkuse as main transcript	c.1381C>T	p.Arg461Trp	missense_variant	10/17	ENST00000332509.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PLA2G6	ENST00000332509.8 linkuse as main transcript	c.1381C>T	p.Arg461Trp	missense_variant	10/17	1	NM_003560.4	P3	O60733-1

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000265

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000144

AC:

AN:

250548

Hom.:

AF XY:

0.000162

AC XY:

AN XY:

135550

show subpopulations

Gnomad AFR exome

AF:

0.0000618

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000221

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000170

AC:

249

AN:

1461352

Hom.:

Cov.:

AF XY:

0.000158

AC XY:

115

AN XY:

726982

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000812

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000202

Gnomad4 OTH exome

AF:

0.000182

GnomAD4 genome

AF:

0.000171

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74418

show subpopulations

Gnomad4 AFR

AF:

0.000144

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000265

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.000121

Hom.:

Bravo

AF:

0.000132

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000148

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000415

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Infantile neuroaxonal dystrophy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jul 04, 2022

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 461 of the PLA2G6 protein (p.Arg461Trp). This variant is present in population databases (rs76718524, gnomAD 0.02%). This missense change has been observed in individual(s) with early-onset Parkinson disease (PMID: 21812034). ClinVar contains an entry for this variant (Variation ID: 459996). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt PLA2G6 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jun 10, 2022

Previously reported in the heterozygous state in an individual with early onset Parkinson disease; variant was also observed in an individual in the control population (Kauther et al., 2011).; In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 22575062, 21812034) -

Infantile neuroaxonal dystrophy;C1857747:Neurodegeneration with brain iron accumulation 2B;C2751842:Autosomal recessive Parkinson disease 14

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Apr 07, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Uncertain

0.015

BayesDel_noAF

Uncertain

0.070

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Benign

0.35

T;.;.

Eigen

Uncertain

0.42

Eigen_PC

Uncertain

0.43

FATHMM_MKL

Uncertain

0.85

LIST_S2

Uncertain

0.95

D;D;.

M_CAP

Benign

0.061

MetaRNN

Uncertain

0.71

D;D;D

MetaSVM

Benign

-0.50

MutationAssessor

Uncertain

2.6

M;.;.

MutationTaster

Benign

0.58

D;D;N;N

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-2.0

N;N;N

REVEL

Benign

0.28

Sift

Benign

0.070

T;D;D

Sift4G

Uncertain

0.052

T;D;D

Polyphen

1.0

D;D;D

Vest4

0.74

MVP

0.86

MPC

0.73

ClinPred

0.33

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.085

gMVP

0.54

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

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