13-46073959-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BA1

The NM_001872.5(CPB2):​c.505G>A​(p.Ala169Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.322 in 1,578,308 control chromosomes in the GnomAD database, including 83,515 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.34 ( 9111 hom., cov: 30)
Exomes 𝑓: 0.32 ( 74404 hom. )

Consequence

CPB2
NM_001872.5 missense

Scores

18

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.748
Variant links:
Genes affected
CPB2 (HGNC:2300): (carboxypeptidase B2) Carboxypeptidases are enzymes that hydrolyze C-terminal peptide bonds. The carboxypeptidase family includes metallo-, serine, and cysteine carboxypeptidases. According to their substrate specificity, these enzymes are referred to as carboxypeptidase A (cleaving aliphatic residues) or carboxypeptidase B (cleaving basic amino residues). The protein encoded by this gene is activated by trypsin and acts on carboxypeptidase B substrates. After thrombin activation, the mature protein downregulates fibrinolysis. Polymorphisms have been described for this gene and its promoter region. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jun 2013]
CPB2-AS1 (HGNC:39898): (CPB2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0023388267).
BP6
Variant 13-46073959-C-T is Benign according to our data. Variant chr13-46073959-C-T is described in ClinVar as [Benign]. Clinvar id is 3059667.Status of the report is no_assertion_criteria_provided, 0 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.385 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CPB2NM_001872.5 linkuse as main transcriptc.505G>A p.Ala169Thr missense_variant 6/11 ENST00000181383.10
CPB2-AS1NR_046226.1 linkuse as main transcriptn.119-20894C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CPB2ENST00000181383.10 linkuse as main transcriptc.505G>A p.Ala169Thr missense_variant 6/111 NM_001872.5 P1Q96IY4-1
CPB2-AS1ENST00000663159.1 linkuse as main transcriptn.469+20994C>T intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.343
AC:
51867
AN:
151216
Hom.:
9105
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.391
Gnomad AMI
AF:
0.290
Gnomad AMR
AF:
0.324
Gnomad ASJ
AF:
0.343
Gnomad EAS
AF:
0.250
Gnomad SAS
AF:
0.206
Gnomad FIN
AF:
0.399
Gnomad MID
AF:
0.373
Gnomad NFE
AF:
0.327
Gnomad OTH
AF:
0.344
GnomAD3 exomes
AF:
0.312
AC:
78096
AN:
250340
Hom.:
12551
AF XY:
0.308
AC XY:
41595
AN XY:
135262
show subpopulations
Gnomad AFR exome
AF:
0.387
Gnomad AMR exome
AF:
0.288
Gnomad ASJ exome
AF:
0.356
Gnomad EAS exome
AF:
0.258
Gnomad SAS exome
AF:
0.214
Gnomad FIN exome
AF:
0.399
Gnomad NFE exome
AF:
0.323
Gnomad OTH exome
AF:
0.312
GnomAD4 exome
AF:
0.319
AC:
455760
AN:
1426978
Hom.:
74404
Cov.:
31
AF XY:
0.316
AC XY:
223469
AN XY:
706124
show subpopulations
Gnomad4 AFR exome
AF:
0.390
Gnomad4 AMR exome
AF:
0.290
Gnomad4 ASJ exome
AF:
0.348
Gnomad4 EAS exome
AF:
0.257
Gnomad4 SAS exome
AF:
0.215
Gnomad4 FIN exome
AF:
0.393
Gnomad4 NFE exome
AF:
0.324
Gnomad4 OTH exome
AF:
0.320
GnomAD4 genome
AF:
0.343
AC:
51903
AN:
151330
Hom.:
9111
Cov.:
30
AF XY:
0.343
AC XY:
25377
AN XY:
73894
show subpopulations
Gnomad4 AFR
AF:
0.390
Gnomad4 AMR
AF:
0.324
Gnomad4 ASJ
AF:
0.343
Gnomad4 EAS
AF:
0.251
Gnomad4 SAS
AF:
0.207
Gnomad4 FIN
AF:
0.399
Gnomad4 NFE
AF:
0.327
Gnomad4 OTH
AF:
0.344
Alfa
AF:
0.326
Hom.:
18291
Bravo
AF:
0.337
TwinsUK
AF:
0.316
AC:
1172
ALSPAC
AF:
0.332
AC:
1278
ESP6500AA
AF:
0.389
AC:
1714
ESP6500EA
AF:
0.323
AC:
2782
ExAC
AF:
0.310
AC:
37644
Asia WGS
AF:
0.264
AC:
917
AN:
3478

ClinVar

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

Submissions by phenotype

CPB2-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesOct 17, 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
AlphaMissense
Benign
0.065
BayesDel_addAF
Benign
-0.82
T
BayesDel_noAF
Benign
-0.81
CADD
Benign
8.3
DANN
Benign
0.78
DEOGEN2
Benign
0.047
T;T;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.00088
N
LIST_S2
Benign
0.040
.;T;T
MetaRNN
Benign
0.0023
T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
-1.0
N;N;.
MutationTaster
Benign
1.0
P;P
PrimateAI
Benign
0.32
T
PROVEAN
Benign
0.61
.;N;N
REVEL
Benign
0.024
Sift
Benign
0.61
.;T;T
Sift4G
Benign
0.68
.;T;T
Polyphen
0.0
B;B;.
Vest4
0.0090, 0.050
MPC
0.37
ClinPred
0.0018
T
GERP RS
2.7
Varity_R
0.15
gMVP
0.56

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.

Other links and lift over

dbSNP: rs3742264; hg19: chr13-46648094; COSMIC: COSV51674355; API