Genetic Variant NM_003560.4:c.1058C>T (chr22-38132850-G-A) – ACMG Classification: Likely_pathogenic (9 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1PM2PP3_StrongPP5

The NM_003560.4(PLA2G6):c.1058C>T(p.Pro353Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000148 in 1,549,490 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P353P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

PLA2G6
NM_003560.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:4U:3

Conservation

PhyloP100: 9.33

Publications

2 publications found

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 Gene-Disease associations (from GenCC):

neurodegeneration with brain iron accumulation 2A
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
neurodegeneration with brain iron accumulation 2B
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
PLA2G6-associated neurodegeneration
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
autosomal recessive Parkinson disease 14
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)

PLA2G6 links:

ENSG00000279080 (HGNC:):

ENSG00000279080 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PM1

In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 10 uncertain in NM_003560.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.985

PP5

Variant 22-38132850-G-A is Pathogenic according to our data. Variant chr22-38132850-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 159726.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003560.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PLA2G6	NM_003560.4	MANE Select	c.1058C>T	p.Pro353Leu	missense	Exon 7 of 17	NP_003551.2
PLA2G6	NM_001349864.2		c.1058C>T	p.Pro353Leu	missense	Exon 7 of 17	NP_001336793.1	O60733-1
PLA2G6	NM_001004426.3		c.1058C>T	p.Pro353Leu	missense	Exon 7 of 16	NP_001004426.1	O60733-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PLA2G6	ENST00000332509.8	TSL:1 MANE Select	c.1058C>T	p.Pro353Leu	missense	Exon 7 of 17	ENSP00000333142.3	O60733-1
PLA2G6	ENST00000402064.5	TSL:1	c.1058C>T	p.Pro353Leu	missense	Exon 7 of 16	ENSP00000386100.1	O60733-2
PLA2G6	ENST00000668949.1		c.1058C>T	p.Pro353Leu	missense	Exon 7 of 17	ENSP00000499711.1	A0A590UK51

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152248

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000642

AC:

AN:

155748

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.000113

Gnomad AMR exome

AF:

0.00

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:

0.00

GnomAD4 exome

AF:

0.0000122

AC:

AN:

1397242

Hom.:

Cov.:

AF XY:

0.0000116

AC XY:

AN XY:

689586

show subpopulations

African (AFR)

AF:

0.0000316

AC:

AN:

31686

American (AMR)

AF:

0.00

AC:

AN:

36142

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25172

East Asian (EAS)

AF:

0.00

AC:

AN:

35878

South Asian (SAS)

AF:

0.00

AC:

AN:

79344

European-Finnish (FIN)

AF:

0.00

AC:

AN:

45598

Middle Eastern (MID)

AF:

0.000198

AC:

AN:

5044

European-Non Finnish (NFE)

AF:

0.0000139

AC:

AN:

1080374

Other (OTH)

AF:

0.00

AC:

AN:

58004

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152248

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74388

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41474

American (AMR)

AF:

0.00

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

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:

0.0000594

Hom.:

Bravo

AF:

0.0000227

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

Infantile neuroaxonal dystrophy (1)

Infantile neuroaxonal dystrophy;C1857747:Neurodegeneration with brain iron accumulation 2B;C2751842:Autosomal recessive Parkinson disease 14 (1)

Iron accumulation in brain (1)

not provided (1)

not specified (1)

PLA2G6-associated neurodegeneration (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.72

BayesDel_addAF

Pathogenic

0.36

BayesDel_noAF

Pathogenic

0.27

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.37

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.58

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

M_CAP

Uncertain

0.21

MetaRNN

Pathogenic

0.99

MetaSVM

Uncertain

-0.23

MutationAssessor

Benign

2.0

PhyloP100

9.3

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-6.9

REVEL

Pathogenic

0.80

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0070

Polyphen

1.0

Vest4

0.92

MutPred

0.95

Loss of disorder (P = 0.0322)

MVP

0.92

MPC

0.89

ClinPred

0.98

GERP RS

5.3

Varity_R

0.67

gMVP

0.93

Mutation Taster

=10/90

disease causing (ClinVar)

(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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over