Genetic Variant PCED1B:p.Ala246Val (chr12-47235800-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_138371.3(PCED1B):c.737C>T(p.Ala246Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000152 in 1,579,170 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 1 hom. )

Consequence

PCED1B
NM_138371.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.31

Variant links:

Genes affected

PCED1B (HGNC:28255): (PC-esterase domain containing 1B) This gene encodes a protein that belongs to the GDSL/SGNH-like acyl-esterase family. Members of this family are hydrolases thought to function in modification of biopolymers on the cell surface. Alternate splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2013]

PCED1B 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=0.19633177).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PCED1B	NM_138371.3 link	c.737C>T	p.Ala246Val	missense_variant	Exon 4 of 4	ENST00000546455.6	NP_612380.1	Q96HM7A0A024R115

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PCED1B	ENST00000546455.6 link	c.737C>T	p.Ala246Val	missense_variant	Exon 4 of 4	1	NM_138371.3	ENSP00000446688.1		Q96HM7

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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

GnomAD3 exomes

AF:

0.0000696

AC:

AN:

186740

Hom.:

AF XY:

0.0000692

AC XY:

AN XY:

101224

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000471

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000119

AC:

AN:

1427004

Hom.:

Cov.:

AF XY:

0.0000113

AC XY:

AN XY:

706918

show subpopulations

Gnomad4 AFR exome

AF:

0.0000307

Gnomad4 AMR exome

AF:

0.000335

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:

0.0000508

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74308

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000458

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:

0.0000491

ExAC

AF:

0.00000833

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 26, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.737C>T (p.A246V) alteration is located in exon 2 (coding exon 1) of the PCED1B gene. This alteration results from a C to T substitution at nucleotide position 737, causing the alanine (A) at amino acid position 246 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

0.32

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.43

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.30

T;T;.

Eigen

Uncertain

0.30

Eigen_PC

Benign

0.19

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.76

.;T;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.20

T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Uncertain

2.0

M;M;.

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-3.2

D;D;D

REVEL

Benign

0.16

Sift

Uncertain

0.010

D;D;D

Sift4G

Uncertain

0.020

D;D;D

Polyphen

0.95

P;P;.

Vest4

0.40

MutPred

0.35

Gain of catalytic residue at A251 (P = 0);Gain of catalytic residue at A251 (P = 0);.;

MVP

0.56

MPC

1.1

ClinPred

0.34

GERP RS

3.4

Varity_R

0.15

gMVP

0.57

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