Genetic Variant PLPPR5:p.Leu68Phe (chr1-99004470-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001037317.2(PLPPR5):c.202C>T(p.Leu68Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,611,638 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

PLPPR5
NM_001037317.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.39

Variant links:

Genes affected

PLPPR5 (HGNC:31703): (phospholipid phosphatase related 5) The protein encoded by this gene is a type 2 member of the phosphatidic acid phosphatase (PAP) family. All type 2 members of this protein family contain 6 transmembrane regions, and a consensus N-glycosylation site. PAPs convert phosphatidic acid to diacylglycerol, and function in de novo synthesis of glycerolipids as well as in receptor-activated signal transduction mediated by phospholipase D. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

PLPPR5 links:

PLPPR5-AS1 (HGNC:55720): (PLPPR5 antisense RNA 1)

PLPPR5-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLPPR5	NM_001037317.2 link	c.202C>T	p.Leu68Phe	missense_variant	Exon 1 of 6	ENST00000263177.5	NP_001032394.1	Q32ZL2-1
PLPPR5	NM_001010861.3 link	c.202C>T	p.Leu68Phe	missense_variant	Exon 1 of 6		NP_001010861.1	Q32ZL2-2
PLPPR5	XM_011540838.4 link	c.154C>T	p.Leu52Phe	missense_variant	Exon 2 of 7		XP_011539140.1
PLPPR5-AS1	NR_033940.1 link	n.195G>A		non_coding_transcript_exon_variant	Exon 1 of 3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLPPR5	ENST00000263177.5 link	c.202C>T	p.Leu68Phe	missense_variant	Exon 1 of 6	1	NM_001037317.2	ENSP00000263177.4		Q32ZL2-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

6.85e-7

AC:

AN:

1459400

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

725960

show subpopulations

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152238

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 31, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.202C>T (p.L68F) alteration is located in exon 1 (coding exon 1) of the PLPPR5 gene. This alteration results from a C to T substitution at nucleotide position 202, causing the leucine (L) at amino acid position 68 to be replaced by a phenylalanine (F). 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

Pathogenic

0.77

BayesDel_addAF

Benign

-0.027

BayesDel_noAF

Benign

-0.28

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

.;T

Eigen

Uncertain

0.64

Eigen_PC

Uncertain

0.58

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.94

D;D

M_CAP

Uncertain

0.18

MetaRNN

Uncertain

0.48

T;T

MetaSVM

Benign

-0.62

PrimateAI

Pathogenic

0.84

PROVEAN

Uncertain

-2.5

D;D

REVEL

Benign

0.25

Sift

Uncertain

0.0030

D;D

Sift4G

Benign

0.12

T;T

Polyphen

0.99

D;D

Vest4

0.54

MutPred

0.43

Gain of catalytic residue at L68 (P = 0.0135);Gain of catalytic residue at L68 (P = 0.0135);

MVP

0.13

MPC

1.6

ClinPred

0.99

GERP RS

4.2

Varity_R

0.57

gMVP

0.79

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over