chr22-38139993-G-A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_ModerateBP6BP7

The NM_003560.4(PLA2G6):​c.786C>T​(p.Phe262Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000313 in 1,597,430 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000033 ( 1 hom. )

Consequence

PLA2G6
NM_003560.4 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 3.38

Publications

1 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 -4 ACMG points.

BP4
Computational evidence support a benign effect (REVEL=0.163).
BP6
Variant 22-38139993-G-A is Benign according to our data. Variant chr22-38139993-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 159779.
BP7
Synonymous conserved (PhyloP=3.38 with no splicing effect.

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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PLA2G6
NM_003560.4
MANE Select
c.786C>Tp.Phe262Phe
synonymous
Exon 5 of 17NP_003551.2
PLA2G6
NM_001349864.2
c.786C>Tp.Phe262Phe
synonymous
Exon 5 of 17NP_001336793.1
PLA2G6
NM_001004426.3
c.786C>Tp.Phe262Phe
synonymous
Exon 5 of 16NP_001004426.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PLA2G6
ENST00000332509.8
TSL:1 MANE Select
c.786C>Tp.Phe262Phe
synonymous
Exon 5 of 17ENSP00000333142.3
PLA2G6
ENST00000402064.5
TSL:1
c.786C>Tp.Phe262Phe
synonymous
Exon 5 of 16ENSP00000386100.1
PLA2G6
ENST00000668949.1
c.786C>Tp.Phe262Phe
synonymous
Exon 5 of 17ENSP00000499711.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152120
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000942
AC:
21
AN:
223040
AF XY:
0.000108
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000325
AC:
47
AN:
1445192
Hom.:
1
Cov.:
31
AF XY:
0.0000432
AC XY:
31
AN XY:
717464
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33310
American (AMR)
AF:
0.00
AC:
0
AN:
41914
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25768
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39248
South Asian (SAS)
AF:
0.000474
AC:
40
AN:
84358
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52294
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5746
European-Non Finnish (NFE)
AF:
0.00000181
AC:
2
AN:
1102832
Other (OTH)
AF:
0.0000837
AC:
5
AN:
59722
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152238
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74436
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41538
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.000622
AC:
3
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68008
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.408
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000936
Hom.:
0
Bravo
AF:
0.0000113
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Infantile neuroaxonal dystrophy (1)
-
1
-
Iron accumulation in brain (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.34
CADD
Benign
17
DANN
Benign
0.73
PhyloP100
3.4
Mutation Taster
=99/1
polymorphism

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

Other links and lift over

dbSNP: rs546742857; hg19: chr22-38536000; API