rs778448493

Variant summary

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

The NM_024420.3(PLA2G4A):​c.100G>A​(p.Ala34Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000299 in 1,607,642 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

PLA2G4A
NM_024420.3 missense

Scores

18

Clinical Significance

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

Conservation

PhyloP100: 1.90

Publications

2 publications found
Variant links:
Genes affected
PLA2G4A (HGNC:9035): (phospholipase A2 group IVA) This gene encodes a member of the cytosolic phospholipase A2 group IV family. The enzyme catalyzes the hydrolysis of membrane phospholipids to release arachidonic acid which is subsequently metabolized into eicosanoids. Eicosanoids, including prostaglandins and leukotrienes, are lipid-based cellular hormones that regulate hemodynamics, inflammatory responses, and other intracellular pathways. The hydrolysis reaction also produces lysophospholipids that are converted into platelet-activating factor. The enzyme is activated by increased intracellular Ca(2+) levels and phosphorylation, resulting in its translocation from the cytosol and nucleus to perinuclear membrane vesicles. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2015]
PLA2G4A Gene-Disease associations (from GenCC):
  • cytosolic phospholipase-A2 alpha deficiency associated bleeding disorder
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, ClinGen
  • cryptogenic multifocal ulcerous stenosing enteritis
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

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=0.08790025).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024420.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PLA2G4A
NM_024420.3
MANE Select
c.100G>Ap.Ala34Thr
missense
Exon 3 of 18NP_077734.2P47712
PLA2G4A
NM_001311193.2
c.100G>Ap.Ala34Thr
missense
Exon 3 of 16NP_001298122.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PLA2G4A
ENST00000367466.4
TSL:1 MANE Select
c.100G>Ap.Ala34Thr
missense
Exon 3 of 18ENSP00000356436.3P47712
PLA2G4A
ENST00000851114.1
c.100G>Ap.Ala34Thr
missense
Exon 4 of 19ENSP00000521173.1
PLA2G4A
ENST00000851115.1
c.100G>Ap.Ala34Thr
missense
Exon 3 of 18ENSP00000521174.1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152066
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000637
AC:
16
AN:
250986
AF XY:
0.0000590
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000705
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000302
AC:
44
AN:
1455576
Hom.:
0
Cov.:
30
AF XY:
0.0000345
AC XY:
25
AN XY:
724488
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33364
American (AMR)
AF:
0.000112
AC:
5
AN:
44700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26064
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39646
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86132
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53402
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5710
European-Non Finnish (NFE)
AF:
0.0000307
AC:
34
AN:
1106398
Other (OTH)
AF:
0.00
AC:
0
AN:
60160
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.423
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152066
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74292
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41388
American (AMR)
AF:
0.00
AC:
0
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
67996
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000301
Hom.:
0
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.089
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
18
DANN
Benign
0.93
DEOGEN2
Benign
0.19
T
Eigen
Benign
-0.45
Eigen_PC
Benign
-0.27
FATHMM_MKL
Benign
0.61
D
LIST_S2
Benign
0.82
T
M_CAP
Benign
0.0073
T
MetaRNN
Benign
0.088
T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
0.92
L
PhyloP100
1.9
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.010
N
REVEL
Benign
0.028
Sift
Benign
0.60
T
Sift4G
Benign
0.27
T
Polyphen
0.0
B
Vest4
0.15
MutPred
0.36
Loss of catalytic residue at A34 (P = 0.0205)
MVP
0.77
MPC
0.52
ClinPred
0.034
T
GERP RS
3.3
Varity_R
0.063
gMVP
0.50
Mutation Taster
=83/17
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: rs778448493; hg19: chr1-186839633; COSMIC: COSV108895716; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.