Variant chr3-148828054-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001871.3(CPB1):c.124C>T(p.Arg42Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000861 in 1,613,744 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00057 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00089 ( 1 hom. )

Consequence

CPB1
NM_001871.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.15

Variant links:

Genes affected

CPB1 (HGNC:2299): (carboxypeptidase B1) Three different procarboxypeptidases A and two different procarboxypeptidases B have been isolated. The B1 and B2 forms differ from each other mainly in isoelectric point. Carboxypeptidase B1 is a highly tissue-specific protein and is a useful serum marker for acute pancreatitis and dysfunction of pancreatic transplants. It is not elevated in pancreatic carcinoma. [provided by RefSeq, Jul 2008]

CPB1 links:

CPB1 (HGNC:):

CPB1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.02890709).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CPB1	NM_001871.3 linkuse as main transcript	c.124C>T	p.Arg42Cys	missense_variant	2/11	ENST00000282957.9	NP_001862.2	P15086

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CPB1	ENST00000282957.9 linkuse as main transcript	c.124C>T	p.Arg42Cys	missense_variant	2/11	1	NM_001871.3	ENSP00000282957.4		P15086

Frequencies

GnomAD3 genomes

AF:

0.000566

AC:

AN:

152004

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000786

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000662

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000809

Gnomad OTH

AF:

0.00192

GnomAD3 exomes

AF:

0.000554

AC:

139

AN:

251090

Hom.:

AF XY:

0.000560

AC XY:

AN XY:

135700

show subpopulations

Gnomad AFR exome

AF:

0.000369

Gnomad AMR exome

AF:

0.000405

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.000647

Gnomad NFE exome

AF:

0.000855

Gnomad OTH exome

AF:

0.000653

GnomAD4 exome

AF:

0.000891

AC:

1303

AN:

1461622

Hom.:

Cov.:

AF XY:

0.000890

AC XY:

647

AN XY:

727098

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.000425

Gnomad4 ASJ exome

AF:

0.0000765

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.000562

Gnomad4 NFE exome

AF:

0.00109

Gnomad4 OTH exome

AF:

0.000464

GnomAD4 genome

AF:

0.000565

AC:

AN:

152122

Hom.:

Cov.:

AF XY:

0.000619

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.000193

Gnomad4 AMR

AF:

0.000785

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000662

Gnomad4 NFE

AF:

0.000809

Gnomad4 OTH

AF:

0.00190

Alfa

AF:

0.000740

Hom.:

Bravo

AF:

0.000627

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000610

AC:

EpiCase

AF:

0.000437

EpiControl

AF:

0.00107

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

Aug 02, 2021

The c.124C>T (p.R42C) alteration is located in exon 2 (coding exon 2) of the CPB1 gene. This alteration results from a C to T substitution at nucleotide position 124, causing the arginine (R) at amino acid position 42 to be replaced by a cysteine (C). 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

0.20

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;T;T;T;T

Eigen

Benign

-0.030

Eigen_PC

Benign

-0.18

FATHMM_MKL

Benign

0.094

LIST_S2

Benign

0.81

.;T;T;T;T

M_CAP

Benign

0.013

MetaRNN

Benign

0.029

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

L;.;.;L;.

PrimateAI

Benign

0.23

PROVEAN

Pathogenic

-4.7

D;D;D;D;D

REVEL

Benign

0.14

Sift

Uncertain

0.0010

D;D;D;D;D

Sift4G

Uncertain

0.0020

D;D;D;D;D

Polyphen

1.0

D;.;.;D;.

Vest4

0.26

MVP

0.57

MPC

0.75

ClinPred

0.055

GERP RS

4.8

Varity_R

0.40

gMVP

0.47

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