rs146252218

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_StrongBP6BP7

The NM_003560.4(PLA2G6):​c.396C>T​(p.Arg132Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000249 in 1,610,690 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 30)
Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

PLA2G6
NM_003560.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -3.95

Publications

0 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, Genomics England PanelApp, Orphanet, Labcorp Genetics (formerly Invitae)
  • 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: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.58).
BP6
Variant 22-38145467-G-A is Benign according to our data. Variant chr22-38145467-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 459998.
BP7
Synonymous conserved (PhyloP=-3.95 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLA2G6NM_003560.4 linkc.396C>T p.Arg132Arg synonymous_variant Exon 3 of 17 ENST00000332509.8 NP_003551.2 O60733-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PLA2G6ENST00000332509.8 linkc.396C>T p.Arg132Arg synonymous_variant Exon 3 of 17 1 NM_003560.4 ENSP00000333142.3 O60733-1

Frequencies

GnomAD3 genomes
AF:
0.000171
AC:
26
AN:
152158
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000220
AC:
54
AN:
245310
AF XY:
0.000227
show subpopulations
Gnomad AFR exome
AF:
0.000255
Gnomad AMR exome
AF:
0.000797
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000180
Gnomad OTH exome
AF:
0.000502
GnomAD4 exome
AF:
0.000257
AC:
375
AN:
1458532
Hom.:
0
Cov.:
32
AF XY:
0.000287
AC XY:
208
AN XY:
725284
show subpopulations
African (AFR)
AF:
0.000329
AC:
11
AN:
33450
American (AMR)
AF:
0.000882
AC:
39
AN:
44210
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25968
East Asian (EAS)
AF:
0.0000757
AC:
3
AN:
39640
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85538
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53146
Middle Eastern (MID)
AF:
0.00210
AC:
11
AN:
5242
European-Non Finnish (NFE)
AF:
0.000266
AC:
296
AN:
1111104
Other (OTH)
AF:
0.000249
AC:
15
AN:
60234
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
20
39
59
78
98
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.000171
AC:
26
AN:
152158
Hom.:
0
Cov.:
30
AF XY:
0.000202
AC XY:
15
AN XY:
74324
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41440
American (AMR)
AF:
0.000655
AC:
10
AN:
15272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000385
AC:
2
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000162
AC:
11
AN:
68024
Other (OTH)
AF:
0.000478
AC:
1
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000754
Hom.:
0
Bravo
AF:
0.000242

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:2
Jan 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PLA2G6: BP4, BP7 -

Oct 11, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

PLA2G6-associated neurodegeneration Uncertain:1
Mar 16, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Infantile neuroaxonal dystrophy Benign:1
Dec 17, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.58
CADD
Benign
3.5
DANN
Benign
0.75
PhyloP100
-3.9
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs146252218; hg19: chr22-38541474; API