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GeneBe

18-74510966-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_018235.3(CNDP2):c.610C>G(p.Pro204Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000378 in 1,614,160 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 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

CNDP2
NM_018235.3 missense

Scores

7
9
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.82
Variant links:
Genes affected
CNDP2 (HGNC:24437): (carnosine dipeptidase 2) CNDP2, also known as tissue carnosinase and peptidase A (EC 3.4.13.18), is a nonspecific dipeptidase rather than a selective carnosinase (Teufel et al., 2003 [PubMed 12473676]).[supplied by OMIM, Mar 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.851

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CNDP2NM_018235.3 linkuse as main transcriptc.610C>G p.Pro204Ala missense_variant 6/12 ENST00000324262.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CNDP2ENST00000324262.9 linkuse as main transcriptc.610C>G p.Pro204Ala missense_variant 6/121 NM_018235.3 P1Q96KP4-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152150
Hom.:
0
Cov.:
33
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000358
AC:
9
AN:
251474
Hom.:
0
AF XY:
0.0000515
AC XY:
7
AN XY:
135906
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:
0.0000791
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000390
AC:
57
AN:
1461892
Hom.:
0
Cov.:
33
AF XY:
0.0000344
AC XY:
25
AN XY:
727248
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:
0.0000477
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152268
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000900
Hom.:
0
Bravo
AF:
0.0000189
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

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 GeneticsMar 21, 2023The c.610C>G (p.P204A) alteration is located in exon 6 (coding exon 5) of the CNDP2 gene. This alteration results from a C to G substitution at nucleotide position 610, causing the proline (P) at amino acid position 204 to be replaced by an alanine (A). 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
0.74
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
0.13
Cadd
Pathogenic
26
Dann
Benign
0.90
DEOGEN2
Uncertain
0.53
D;.;D;.;T;.;T
Eigen
Pathogenic
0.96
Eigen_PC
Pathogenic
0.85
FATHMM_MKL
Pathogenic
0.98
D
M_CAP
Uncertain
0.14
D
MetaRNN
Pathogenic
0.85
D;D;D;D;D;D;D
MetaSVM
Uncertain
-0.18
T
MutationAssessor
Pathogenic
4.3
H;.;H;.;.;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.73
T
PROVEAN
Pathogenic
-7.2
D;.;.;.;.;D;.
REVEL
Uncertain
0.59
Sift
Uncertain
0.0010
D;.;.;.;.;D;.
Sift4G
Uncertain
0.0020
D;D;D;D;D;D;D
Polyphen
1.0
D;.;D;.;.;D;.
Vest4
0.84
MVP
0.95
MPC
0.68
ClinPred
0.98
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.95
gMVP
0.91

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: rs200391267; hg19: chr18-72178201; API