3-148828002-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_001871.3(CPB1):​c.72C>T​(p.Gly24Gly) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00173 in 1,613,740 control chromosomes in the GnomAD database, including 48 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.0095 ( 22 hom., cov: 32)
Exomes 𝑓: 0.00092 ( 26 hom. )

Consequence

CPB1
NM_001871.3 splice_region, synonymous

Scores

2
Splicing: ADA: 0.0001986
2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: -2.95
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 3-148828002-C-T is Benign according to our data. Variant chr3-148828002-C-T is described in ClinVar as [Benign]. Clinvar id is 3039170.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=-2.95 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00953 (1451/152262) while in subpopulation AFR AF= 0.0333 (1384/41550). AF 95% confidence interval is 0.0319. There are 22 homozygotes in gnomad4. There are 710 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 22 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CPB1NM_001871.3 linkuse as main transcriptc.72C>T p.Gly24Gly splice_region_variant, synonymous_variant 2/11 ENST00000282957.9 NP_001862.2 P15086

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CPB1ENST00000282957.9 linkuse as main transcriptc.72C>T p.Gly24Gly splice_region_variant, synonymous_variant 2/111 NM_001871.3 ENSP00000282957.4 P15086

Frequencies

GnomAD3 genomes
AF:
0.00951
AC:
1447
AN:
152144
Hom.:
22
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0333
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00314
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00525
GnomAD3 exomes
AF:
0.00254
AC:
638
AN:
251132
Hom.:
6
AF XY:
0.00192
AC XY:
260
AN XY:
135730
show subpopulations
Gnomad AFR exome
AF:
0.0362
Gnomad AMR exome
AF:
0.00113
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000163
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.000920
AC:
1344
AN:
1461478
Hom.:
26
Cov.:
31
AF XY:
0.000788
AC XY:
573
AN XY:
727036
show subpopulations
Gnomad4 AFR exome
AF:
0.0338
Gnomad4 AMR exome
AF:
0.00136
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000216
Gnomad4 OTH exome
AF:
0.00199
GnomAD4 genome
AF:
0.00953
AC:
1451
AN:
152262
Hom.:
22
Cov.:
32
AF XY:
0.00954
AC XY:
710
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.0333
Gnomad4 AMR
AF:
0.00308
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00520
Alfa
AF:
0.00418
Hom.:
9
Bravo
AF:
0.0108
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

CPB1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMay 23, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.64
DANN
Benign
0.86

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00020
dbscSNV1_RF
Benign
0.072
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs80013498; hg19: chr3-148545789; API