Genetic Variant CPVL:p.Arg136Pro (chr7-29095139-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_031311.5(CPVL):c.407G>C(p.Arg136Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,304 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CPVL
NM_031311.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.04

Variant links:

Genes affected

CPVL (HGNC:14399): (carboxypeptidase vitellogenic like) The protein encoded by this gene is a carboxypeptidase and bears strong sequence similarity to serine carboxypeptidases. Carboxypeptidases are a large class of proteases that act to cleave a single amino acid from the carboxy termini of proteins or peptides. The exact function of this protein, however, has not been determined. [provided by RefSeq, Jan 2017]

CPVL links:

Genome browser will be placed here

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 rank	MANE	Protein	UniProt
CPVL	NM_031311.5 link	c.407G>C	p.Arg136Pro	missense_variant	Exon 5 of 13	ENST00000265394.10	NP_112601.3	Q9H3G5A0A024RA40

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CPVL	ENST00000265394.10 link	c.407G>C	p.Arg136Pro	missense_variant	Exon 5 of 13	1	NM_031311.5	ENSP00000265394.5		Q9H3G5

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

152002

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251412

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135870

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461302

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727016

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

152002

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74252

show subpopulations

Gnomad4 AFR

AF:

0.0000483

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:

0.00

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 04, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.407G>C (p.R136P) alteration is located in exon 5 (coding exon 4) of the CPVL gene. This alteration results from a G to C substitution at nucleotide position 407, causing the arginine (R) at amino acid position 136 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

Pathogenic

0.61

BayesDel_addAF

Benign

-0.057

BayesDel_noAF

Benign

-0.14

CADD

Benign

0.0060

DANN

Benign

0.95

DEOGEN2

Uncertain

0.54

D;D;D;.;D;D

Eigen

Benign

-0.50

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.13

LIST_S2

Benign

0.48

.;.;T;T;T;T

M_CAP

Uncertain

0.12

MetaRNN

Uncertain

0.63

D;D;D;D;D;D

MetaSVM

Benign

-0.45

MutationAssessor

Uncertain

2.1

M;M;M;.;.;.

PrimateAI

Benign

0.24

PROVEAN

Benign

-1.8

N;N;N;N;N;N

REVEL

Uncertain

0.58

Sift

Benign

0.24

T;T;T;T;T;T

Sift4G

Benign

0.28

T;T;T;.;.;.

Polyphen

0.82

P;P;P;.;.;.

Vest4

0.43

MutPred

0.53

Loss of catalytic residue at R136 (P = 0.0447);Loss of catalytic residue at R136 (P = 0.0447);Loss of catalytic residue at R136 (P = 0.0447);.;.;.;

MVP

0.91

MPC

0.69

ClinPred

0.43

GERP RS

0.18

Varity_R

0.65

gMVP

0.84

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