7-130306875-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_016352.4(CPA4):c.680G>T(p.Gly227Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000125 in 1,599,828 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CPA4
NM_016352.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.76

Variant links:

Genes affected

CPA4 (HGNC:15740): (carboxypeptidase A4) This gene is a member of the carboxypeptidase A/B subfamily, and it is located in a cluster with three other family members on chromosome 7. Carboxypeptidases are zinc-containing exopeptidases that catalyze the release of carboxy-terminal amino acids, and are synthesized as zymogens that are activated by proteolytic cleavage. This gene could be involved in the histone hyperacetylation pathway. It is imprinted and may be a strong candidate gene for prostate cancer aggressiveness. [provided by RefSeq, Jul 2008]

CPA4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.987

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CPA4	NM_016352.4 linkuse as main transcript	c.680G>T	p.Gly227Val	missense_variant	7/11	ENST00000222482.10
CPA4	NM_001163446.2 linkuse as main transcript	c.581G>T	p.Gly194Val	missense_variant	6/10
CPA4	XM_047420438.1 linkuse as main transcript	c.368G>T	p.Gly123Val	missense_variant	7/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CPA4	ENST00000222482.10 linkuse as main transcript	c.680G>T	p.Gly227Val	missense_variant	7/11	1	NM_016352.4	P1	Q9UI42-1
CPA4	ENST00000445470.6 linkuse as main transcript	c.581G>T	p.Gly194Val	missense_variant	6/10	2			Q9UI42-2
CPA4	ENST00000493259.5 linkuse as main transcript	c.368G>T	p.Gly123Val	missense_variant	5/9	2
CPA4	ENST00000473956.5 linkuse as main transcript			downstream_gene_variant		4

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152208

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000478

GnomAD4 exome

AF:

6.91e-7

AC:

AN:

1447620

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

721136

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152208

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

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:

0.000478

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

Mar 29, 2022

The c.680G>T (p.G227V) alteration is located in exon 7 (coding exon 7) of the CPA4 gene. This alteration results from a G to T substitution at nucleotide position 680, causing the glycine (G) at amino acid position 227 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

Pathogenic

0.96

BayesDel_addAF

Pathogenic

0.38

BayesDel_noAF

Pathogenic

0.30

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Benign

0.35

T;.;T;T

Eigen

Pathogenic

1.1

Eigen_PC

Pathogenic

1.0

FATHMM_MKL

Pathogenic

1.0

M_CAP

Uncertain

0.17

MetaRNN

Pathogenic

0.99

D;D;D;D

MetaSVM

Uncertain

0.45

MutationAssessor

Pathogenic

4.3

H;.;.;H

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.66

Polyphen

1.0

D;.;.;D

Vest4

0.98, 0.98

MutPred

0.96

Gain of MoRF binding (P = 0.1284);.;.;Gain of MoRF binding (P = 0.1284);

MVP

0.96

MPC

0.63

ClinPred

1.0

GERP RS

5.6

Varity_R

0.99

gMVP

0.81

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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