rs991169314

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001270366.2(PLPPR3):​c.1391C>T​(p.Ala464Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000136 in 1,473,048 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 7.6e-7 ( 0 hom. )

Consequence

PLPPR3
NM_001270366.2 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.261
Variant links:
Genes affected
PLPPR3 (HGNC:23497): (phospholipid phosphatase related 3) The proteins in the lipid phosphate phosphatase (LPP) family, including PRG2, are integral membrane proteins that modulate bioactive lipid phosphates including phosphatidate, lysophosphatidate, and sphingosine-1-phosphate in the context of cell migration, neurite retraction, and mitogenesis (Brauer et al., 2003 [PubMed 12730698]).[supplied by OMIM, Mar 2008]
MIR3187 (HGNC:38319): (microRNA 3187) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.031118631).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLPPR3NM_001270366.2 linkc.1391C>T p.Ala464Val missense_variant Exon 8 of 8 ENST00000520876.8 NP_001257295.1 Q6T4P5-1
PLPPR3NM_024888.3 linkc.1475C>T p.Ala492Val missense_variant Exon 7 of 7 NP_079164.1 Q6T4P5-3
PLPPR3XM_011528317.4 linkc.1475C>T p.Ala492Val missense_variant Exon 7 of 7 XP_011526619.1 Q6T4P5-3
MIR3187NR_036154.1 linkn.-248G>A upstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PLPPR3ENST00000520876.8 linkc.1391C>T p.Ala464Val missense_variant Exon 8 of 8 1 NM_001270366.2 ENSP00000430297.1 Q6T4P5-1

Frequencies

GnomAD3 genomes
AF:
0.00000660
AC:
1
AN:
151530
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
7.57e-7
AC:
1
AN:
1321518
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
649116
show subpopulations
African (AFR)
AF:
0.0000361
AC:
1
AN:
27694
American (AMR)
AF:
0.00
AC:
0
AN:
24758
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
21108
East Asian (EAS)
AF:
0.00
AC:
0
AN:
33562
South Asian (SAS)
AF:
0.00
AC:
0
AN:
69530
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
32220
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3974
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1053744
Other (OTH)
AF:
0.00
AC:
0
AN:
54928
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
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

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:
0.00000660
AC:
1
AN:
151530
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
73974
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000242
AC:
1
AN:
41262
American (AMR)
AF:
0.00
AC:
0
AN:
15212
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3462
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5130
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10532
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
312
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67806
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Dec 03, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1475C>T (p.A492V) alteration is located in exon 7 (coding exon 6) of the PLPPR3 gene. This alteration results from a C to T substitution at nucleotide position 1475, causing the alanine (A) at amino acid position 492 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
Benign
0.057
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
14
DANN
Benign
0.95
DEOGEN2
Benign
0.0054
.;T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.16
N
LIST_S2
Benign
0.53
T;T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.031
T;T
MetaSVM
Benign
-1.0
T
PhyloP100
0.26
PrimateAI
Pathogenic
0.80
T
PROVEAN
Benign
-0.22
N;N
REVEL
Benign
0.029
Sift
Benign
0.58
T;T
Sift4G
Benign
0.34
T;T
Polyphen
0.0010
B;B
Vest4
0.076
MutPred
0.17
.;Loss of helix (P = 0.0123);
MVP
0.076
MPC
0.39
ClinPred
0.16
T
GERP RS
-1.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.9
Varity_R
0.025
gMVP
0.19
Mutation Taster
=93/7
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

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Other links and lift over

dbSNP: rs991169314; hg19: chr19-813336; API