Genetic Variant PLBD1:p.Ile497Thr (chr12-14503944-A-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_024829.6(PLBD1):c.1490T>C(p.Ile497Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000326 in 1,597,424 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

PLBD1
NM_024829.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.67

Publications

0 publications found

Variant links:

Genes affected

PLBD1 (HGNC:26215): (phospholipase B domain containing 1) Predicted to enable phospholipase activity. Predicted to be involved in phospholipid catabolic process. Located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

PLBD1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17304057).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLBD1	NM_024829.6 link	c.1490T>C	p.Ile497Thr	missense_variant	Exon 11 of 11	ENST00000240617.10	NP_079105.4	Q6P4A8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLBD1	ENST00000240617.10 link	c.1490T>C	p.Ile497Thr	missense_variant	Exon 11 of 11	1	NM_024829.6	ENSP00000240617.5		Q6P4A8

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000209

AC:

AN:

239464

AF XY:

0.0000232

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000455

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000304

AC:

AN:

1445230

Hom.:

Cov.:

AF XY:

0.0000391

AC XY:

AN XY:

716846

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32928

American (AMR)

AF:

0.00

AC:

AN:

42624

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25524

East Asian (EAS)

AF:

0.00

AC:

AN:

39356

South Asian (SAS)

AF:

0.00

AC:

AN:

83610

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53244

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5690

European-Non Finnish (NFE)

AF:

0.0000399

AC:

AN:

1102578

Other (OTH)

AF:

0.00

AC:

AN:

59676

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152194

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74338

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41464

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.531

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000847

Hom.:

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 18, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1490T>C (p.I497T) alteration is located in exon 11 (coding exon 11) of the PLBD1 gene. This alteration results from a T to C substitution at nucleotide position 1490, causing the isoleucine (I) at amino acid position 497 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

0.14

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.50

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0026

Eigen

Benign

0.17

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.90

M_CAP

Benign

0.0090

MetaRNN

Benign

0.17

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

PhyloP100

3.7

PrimateAI

Benign

0.43

PROVEAN

Benign

-1.9

REVEL

Benign

0.082

Sift

Benign

0.15

Sift4G

Benign

0.31

Polyphen

0.60

Vest4

0.22

MVP

0.22

MPC

0.47

ClinPred

0.28

GERP RS

5.9

Varity_R

0.16

gMVP

0.61

Mutation Taster

=88/12

polymorphism

(source)

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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12-14503944-A-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over