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GeneBe

8-96785045-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_016134.4(CPQ):c.148A>G(p.Ile50Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000494 in 1,613,774 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00021 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00052 ( 1 hom. )

Consequence

CPQ
NM_016134.4 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.69
Variant links:
Genes affected
CPQ (HGNC:16910): (carboxypeptidase Q) This gene encodes a metallopeptidase that belongs to the peptidase M28 family. The encoded protein may catalyze the cleavage of dipeptides with unsubstituted terminals into amino acids. [provided by RefSeq, Jul 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.21246243).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CPQNM_016134.4 linkuse as main transcriptc.148A>G p.Ile50Val missense_variant 2/8 ENST00000220763.10
LOC124901985XR_007061019.1 linkuse as main transcriptn.354+6497T>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CPQENST00000220763.10 linkuse as main transcriptc.148A>G p.Ile50Val missense_variant 2/81 NM_016134.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000210
AC:
32
AN:
152172
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000132
AC:
33
AN:
250562
Hom.:
0
AF XY:
0.000170
AC XY:
23
AN XY:
135382
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.0000290
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:
0.000274
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000523
AC:
765
AN:
1461602
Hom.:
1
Cov.:
31
AF XY:
0.000473
AC XY:
344
AN XY:
727110
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000648
Gnomad4 OTH exome
AF:
0.000613
GnomAD4 genome
AF:
0.000210
AC:
32
AN:
152172
Hom.:
0
Cov.:
32
AF XY:
0.000161
AC XY:
12
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000412
Hom.:
0
Bravo
AF:
0.000249
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00104
AC:
4
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000698
AC:
6
ExAC
AF:
0.000157
AC:
19
EpiCase
AF:
0.000273
EpiControl
AF:
0.000119

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 GeneticsDec 28, 2022The c.148A>G (p.I50V) alteration is located in exon 2 (coding exon 1) of the CPQ gene. This alteration results from a A to G substitution at nucleotide position 148, causing the isoleucine (I) at amino acid position 50 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
Benign
0.099
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.25
Cadd
Benign
21
Dann
Uncertain
0.99
DEOGEN2
Benign
0.028
T;T;T;T;.
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D;D;D;D;D
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.21
T;T;T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Uncertain
2.6
M;.;.;.;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.89
N;N;N;N;N
REVEL
Benign
0.25
Sift
Benign
0.099
T;T;T;T;T
Sift4G
Benign
0.083
T;D;T;D;D
Polyphen
0.73
P;.;.;.;.
Vest4
0.57
MVP
0.40
MPC
0.31
ClinPred
0.097
T
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.15
gMVP
0.74

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: rs145622173; hg19: chr8-97797273; COSMIC: COSV99614024; API