Genetic Variant NM_198148.3:c.2231G>C (chr10-123746804-C-G) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_198148.3(CPXM2):c.2231G>C(p.Arg744Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000756 in 1,614,228 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00079 ( 2 hom. )

Consequence

CPXM2
NM_198148.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.18

Variant links:

Genes affected

CPXM2 (HGNC:26977): (carboxypeptidase X, M14 family member 2) Predicted to enable metallocarboxypeptidase activity. Predicted to be involved in peptide metabolic process and protein processing. Predicted to be active in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

CPXM2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.056640774).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CPXM2	NM_198148.3 link	c.2231G>C	p.Arg744Pro	missense_variant	Exon 14 of 14	ENST00000241305.4	NP_937791.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CPXM2	ENST00000241305.4 link	c.2231G>C	p.Arg744Pro	missense_variant	Exon 14 of 14	1	NM_198148.3	ENSP00000241305.3	Q8N436
CPXM2	ENST00000615851.4 link	c.505+7859G>C		intron_variant	Intron 13 of 14	5		ENSP00000483180.1	Q49AT5
CPXM2	ENST00000368854.7 link	n.2064+7859G>C		intron_variant	Intron 15 of 19	2

Frequencies

GnomAD3 genomes

AF:

0.000460

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.000576

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000867

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000609

AC:

153

AN:

251410

Hom.:

AF XY:

0.000559

AC XY:

AN XY:

135892

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.000397

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000508

Gnomad NFE exome

AF:

0.00106

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000787

AC:

1150

AN:

1461874

Hom.:

Cov.:

AF XY:

0.000787

AC XY:

572

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.000291

Gnomad4 ASJ exome

AF:

0.000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000711

Gnomad4 NFE exome

AF:

0.000948

Gnomad4 OTH exome

AF:

0.000546

GnomAD4 genome

AF:

0.000459

AC:

AN:

152354

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.0000962

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.000576

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000188

Gnomad4 NFE

AF:

0.000867

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000447

Hom.:

Bravo

AF:

0.000431

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000814

AC:

ExAC

AF:

0.000651

AC:

EpiCase

AF:

0.00104

EpiControl

AF:

0.000771

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 11, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2231G>C (p.R744P) alteration is located in exon 14 (coding exon 14) of the CPXM2 gene. This alteration results from a G to C substitution at nucleotide position 2231, causing the arginine (R) at amino acid position 744 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

0.14

BayesDel_addAF

Uncertain

0.029

BayesDel_noAF

Pathogenic

0.22

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0059

Eigen

Uncertain

0.26

Eigen_PC

Benign

0.22

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.65

M_CAP

Uncertain

0.12

MetaRNN

Benign

0.057

MetaSVM

Uncertain

0.65

MutationAssessor

Uncertain

2.1

PrimateAI

Benign

0.41

PROVEAN

Benign

0.020

REVEL

Uncertain

0.54

Sift

Benign

0.13

Sift4G

Benign

0.16

Polyphen

1.0

Vest4

0.30

MVP

0.98

MPC

0.28

ClinPred

0.033

GERP RS

3.1

Varity_R

0.27

gMVP

0.80

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