12-113358658-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_173542.4(PLBD2):​c.58G>A​(p.Ala20Thr) 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. 12/21 in silico tools predict 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

PLBD2
NM_173542.4 missense

Scores

2
1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.82
Variant links:
Genes affected
PLBD2 (HGNC:27283): (phospholipase B domain containing 2) Predicted to enable phospholipase activity. Predicted to be involved in phospholipid catabolic process. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]
SLC8B1 (HGNC:26175): (solute carrier family 8 member B1) SLC24A6 belongs to a family of potassium-dependent sodium/calcium exchangers that maintain cellular calcium homeostasis through the electrogenic countertransport of 4 sodium ions for 1 calcium ion and 1 potassium ion (Cai and Lytton, 2004 [PubMed 14625281]).[supplied by OMIM, Mar 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.15619418).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PLBD2NM_173542.4 linkc.58G>A p.Ala20Thr missense_variant 1/12 ENST00000280800.5 NP_775813.2 Q8NHP8-1
PLBD2NM_001159727.2 linkc.58G>A p.Ala20Thr missense_variant 1/11 NP_001153199.1 Q8NHP8-2
PLBD2XM_017018977.2 linkc.-242G>A 5_prime_UTR_variant 1/11 XP_016874466.1
LOC105369989XR_945346.3 linkn.181+672C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PLBD2ENST00000280800.5 linkc.58G>A p.Ala20Thr missense_variant 1/121 NM_173542.4 ENSP00000280800.3 Q8NHP8-1
PLBD2ENST00000545182.6 linkc.58G>A p.Ala20Thr missense_variant 1/112 ENSP00000443463.2 Q8NHP8-2
SLC8B1ENST00000549372.1 linkc.-83+672C>T intron_variant 5 ENSP00000447972.1 F8VTU4
SLC8B1ENST00000548518.1 linkn.137+672C>T intron_variant 4

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1308876
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
644684
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 29, 2024The c.58G>A (p.A20T) alteration is located in exon 1 (coding exon 1) of the PLBD2 gene. This alteration results from a G to A substitution at nucleotide position 58, causing the alanine (A) at amino acid position 20 to be replaced by a threonine (T). 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
Benign
0.13
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0098
.;T
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.46
FATHMM_MKL
Benign
0.43
N
LIST_S2
Benign
0.69
T;T
M_CAP
Pathogenic
0.40
D
MetaRNN
Benign
0.16
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L;L
PrimateAI
Pathogenic
0.79
T
PROVEAN
Benign
-0.26
N;N
REVEL
Benign
0.020
Sift
Benign
0.29
T;T
Sift4G
Benign
0.25
T;T
Polyphen
0.0030
.;B
Vest4
0.23
MutPred
0.38
Gain of catalytic residue at A20 (P = 0.0806);Gain of catalytic residue at A20 (P = 0.0806);
MVP
0.23
MPC
1.1
ClinPred
0.52
D
GERP RS
3.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.060
gMVP
0.39

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: chr12-113796463; API