Variant chr3-148827858-T-C details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001871.3(CPB1):c.35T>C(p.Leu12Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000958 in 1,461,866 control chromosomes in the GnomAD database, including 1 homozygotes. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000096 ( 1 hom. )

Consequence

CPB1
NM_001871.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.44

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:

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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/exons	MANE	Protein	UniProt
CPB1	NM_001871.3 linkuse as main transcript	c.35T>C	p.Leu12Pro	missense_variant	1/11	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.35T>C	p.Leu12Pro	missense_variant	1/11	1	NM_001871.3	ENSP00000282957.4		P15086

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

251344

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135830

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:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000958

AC:

AN:

1461866

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727234

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:

0.000162

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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 29, 2024

The c.35T>C (p.L12P) alteration is located in exon 1 (coding exon 1) of the CPB1 gene. This alteration results from a T to C substitution at nucleotide position 35, causing the leucine (L) at amino acid position 12 to be replaced by a proline (P). 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

0.16

BayesDel_addAF

Benign

-0.013

BayesDel_noAF

Uncertain

0.0

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.081

T;T;T;T;T

Eigen

Benign

0.13

Eigen_PC

Benign

0.012

FATHMM_MKL

Benign

0.039

LIST_S2

Benign

0.64

.;T;T;T;T

M_CAP

Benign

0.0081

MetaRNN

Uncertain

0.71

D;D;D;D;D

MetaSVM

Benign

-1.0

MutationAssessor

Pathogenic

3.1

M;.;.;M;.

PrimateAI

Uncertain

0.50

PROVEAN

Uncertain

-2.5

D;D;D;D;N

REVEL

Benign

0.28

Sift

Benign

0.21

T;D;D;T;T

Sift4G

Benign

0.068

T;D;D;T;T

Polyphen

0.99

D;.;.;D;.

Vest4

0.64

MutPred

0.81

Gain of sheet (P = 0.0016);Gain of sheet (P = 0.0016);Gain of sheet (P = 0.0016);Gain of sheet (P = 0.0016);Gain of sheet (P = 0.0016);

MVP

0.35

MPC

0.31

ClinPred

0.92

GERP RS

5.0

Varity_R

0.70

gMVP

0.73

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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