chr1-19978455-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001395463.1(PLA2G2A):​c.110C>T​(p.Ala37Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

PLA2G2A
NM_001395463.1 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.33
Variant links:
Genes affected
PLA2G2A (HGNC:9031): (phospholipase A2 group IIA) The protein encoded by this gene is a member of the phospholipase A2 family (PLA2). PLA2s constitute a diverse family of enzymes with respect to sequence, function, localization, and divalent cation requirements. This gene product belongs to group II, which contains secreted form of PLA2, an extracellular enzyme that has a low molecular mass and requires calcium ions for catalysis. It catalyzes the hydrolysis of the sn-2 fatty acid acyl ester bond of phosphoglycerides, releasing free fatty acids and lysophospholipids, and thought to participate in the regulation of the phospholipid metabolism in biomembranes. Several alternatively spliced transcript variants with different 5' UTRs have been found for this gene.[provided by RefSeq, Sep 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.41585556).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PLA2G2ANM_001395463.1 linkuse as main transcriptc.110C>T p.Ala37Val missense_variant 3/5 ENST00000482011.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PLA2G2AENST00000482011.3 linkuse as main transcriptc.110C>T p.Ala37Val missense_variant 3/51 NM_001395463.1 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1461598
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
727116
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 07, 2024The c.110C>T (p.A37V) alteration is located in exon 4 (coding exon 2) of the PLA2G2A gene. This alteration results from a C to T substitution at nucleotide position 110, causing the alanine (A) at amino acid position 37 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.35
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.59
CADD
Benign
17
DANN
Uncertain
1.0
DEOGEN2
Benign
0.23
.;T;T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.46
FATHMM_MKL
Benign
0.064
N
LIST_S2
Benign
0.83
T;D;.
M_CAP
Benign
0.0057
T
MetaRNN
Benign
0.42
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.7
.;M;M
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.29
T
PROVEAN
Uncertain
-2.6
.;D;D
REVEL
Benign
0.082
Sift
Benign
0.044
.;D;D
Sift4G
Benign
0.077
.;T;T
Polyphen
1.0
.;D;D
Vest4
0.32, 0.30
MutPred
0.72
.;Loss of ubiquitination at K35 (P = 0.0533);Loss of ubiquitination at K35 (P = 0.0533);
MVP
0.35
MPC
1.4
ClinPred
0.65
D
GERP RS
3.3
Varity_R
0.22
gMVP
0.67

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-20304948; API