Variant chr2-28538331-G-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_153021.5(PLB1):c.568G>T(p.Ala190Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,444 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A190V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

PLB1
NM_153021.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.227

Variant links:

Genes affected

PLB1 (HGNC:30041): (phospholipase B1) This gene encodes a membrane-associated phospholipase that displays lysophospholipase and phospholipase A2 activities through removal of sn-1 and sn-2 fatty acids of glycerophospholipids. In addition, it displays lipase and retinyl ester hydrolase activities. The encoded protein is highly conserved and is composed of a large, glycosylated extracellular domain composed of four tandem homologous domains, followed by a hydrophobic segment that anchors the enzyme to the membrane and a short C-terminal cytoplasmic tail. This gene has been identified as a candidate rheumatoid arthritis risk gene. [provided by RefSeq, Jul 2016]

PLB1 links:

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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=0.06897032).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PLB1	NM_153021.5 linkuse as main transcript	c.568G>T	p.Ala190Ser	missense_variant	10/58	ENST00000327757.10
PLB1	NM_001170585.2 linkuse as main transcript	c.601G>T	p.Ala201Ser	missense_variant	10/57

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PLB1	ENST00000327757.10 linkuse as main transcript	c.568G>T	p.Ala190Ser	missense_variant	10/58	1	NM_153021.5	P1	Q6P1J6-1
PLB1	ENST00000422425.6 linkuse as main transcript	c.601G>T	p.Ala201Ser	missense_variant	10/57	1			Q6P1J6-3
PLB1	ENST00000404858.5 linkuse as main transcript	c.598G>T	p.Ala200Ser	missense_variant	10/57	1
PLB1	ENST00000416713.5 linkuse as main transcript	c.433G>T	p.Ala145Ser	missense_variant	10/11	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249418

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135134

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000887

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461444

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727032

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:

0.00000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.000111

Hom.:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

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 submitter

clinical testing

Ambry Genetics

Sep 06, 2022

The c.568G>T (p.A190S) alteration is located in exon 10 (coding exon 10) of the PLB1 gene. This alteration results from a G to T substitution at nucleotide position 568, causing the alanine (A) at amino acid position 190 to be replaced by a serine (S). 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

0.082

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.56

CADD

Benign

0.11

DANN

Benign

0.88

DEOGEN2

Benign

0.0053

.;T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.016

LIST_S2

Benign

0.45

T;T;T

M_CAP

Benign

0.0051

MetaRNN

Benign

0.069

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.3

.;L;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.22

PROVEAN

Benign

-0.44

N;N;N

REVEL

Benign

0.025

Sift

Benign

0.098

T;T;T

Sift4G

Benign

0.12

T;T;D

Polyphen

0.029, 0.27

.;B;B

Vest4

0.19, 0.15

MutPred

0.39

.;Gain of glycosylation at A190 (P = 0.0107);.;

MVP

0.088

MPC

0.039

ClinPred

0.071

GERP RS

-0.33

Varity_R

0.047

gMVP

0.064

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