20-2794348-G-A

Variant summary

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

The NM_019609.5(CPXM1):​c.2047C>T​(p.Arg683Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000313 in 1,614,038 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00033 ( 0 hom. )

Consequence

CPXM1
NM_019609.5 missense

Scores

4
2
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.757
Variant links:
Genes affected
CPXM1 (HGNC:15771): (carboxypeptidase X, M14 family member 1) This gene likely encodes a member of the carboxypeptidase family of proteins. Cloning of a comparable locus in mouse indicates that the encoded protein contains a discoidin domain and a carboxypeptidase domain, but the protein appears to lack residues necessary for carboxypeptidase activity.[provided by RefSeq, May 2010]

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/exons MANE Protein UniProt
CPXM1NM_019609.5 linkuse as main transcriptc.2047C>T p.Arg683Trp missense_variant 14/14 ENST00000380605.3 NP_062555.1 Q96SM3
CPXM1NM_001184699.2 linkuse as main transcriptc.1825C>T p.Arg609Trp missense_variant 14/14 NP_001171628.1 Q96SM3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CPXM1ENST00000380605.3 linkuse as main transcriptc.2047C>T p.Arg683Trp missense_variant 14/141 NM_019609.5 ENSP00000369979.2 Q96SM3

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152152
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000250
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000271
AC:
68
AN:
250732
Hom.:
0
AF XY:
0.000236
AC XY:
32
AN XY:
135604
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.000593
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000333
AC:
487
AN:
1461886
Hom.:
0
Cov.:
32
AF XY:
0.000312
AC XY:
227
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000374
Gnomad4 NFE exome
AF:
0.000420
Gnomad4 OTH exome
AF:
0.000232
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152152
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74338
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000250
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000323
Hom.:
0
Bravo
AF:
0.000140
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.000346
AC:
42
EpiCase
AF:
0.000164
EpiControl
AF:
0.000474

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 submitterclinical testingAmbry GeneticsSep 23, 2023The c.2047C>T (p.R683W) alteration is located in exon 14 (coding exon 14) of the CPXM1 gene. This alteration results from a C to T substitution at nucleotide position 2047, causing the arginine (R) at amino acid position 683 to be replaced by a tryptophan (W). 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
0.19
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.23
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.24
T
Eigen
Benign
0.10
Eigen_PC
Benign
-0.12
FATHMM_MKL
Benign
0.40
N
LIST_S2
Benign
0.82
T
M_CAP
Benign
0.045
D
MetaRNN
Uncertain
0.55
D
MetaSVM
Benign
-1.0
T
MutationAssessor
Pathogenic
3.0
M
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.35
T
PROVEAN
Pathogenic
-5.5
D
REVEL
Benign
0.16
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.59
MVP
0.68
MPC
1.0
ClinPred
0.37
T
GERP RS
1.9
Varity_R
0.72
gMVP
0.83

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: rs200652644; hg19: chr20-2774994; API