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GeneBe

18-74510819-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_018235.3(CNDP2):c.463C>T(p.Pro155Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,613,146 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 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CNDP2
NM_018235.3 missense

Scores

4
10
4

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 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.8

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CNDP2NM_018235.3 linkuse as main transcriptc.463C>T p.Pro155Ser missense_variant 6/12 ENST00000324262.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CNDP2ENST00000324262.9 linkuse as main transcriptc.463C>T p.Pro155Ser missense_variant 6/121 NM_018235.3 P1Q96KP4-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152190
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250832
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135600
show subpopulations
Gnomad AFR exome
AF:
0.0000616
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:
0.00000205
AC:
3
AN:
1460956
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
726750
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
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:
0.00000657
AC:
1
AN:
152190
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74344
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

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 01, 2024The c.463C>T (p.P155S) alteration is located in exon 6 (coding exon 5) of the CNDP2 gene. This alteration results from a C to T substitution at nucleotide position 463, causing the proline (P) at amino acid position 155 to be replaced by a serine (S). 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
0.65
BayesDel_addAF
Uncertain
0.062
T
BayesDel_noAF
Uncertain
0.030
Cadd
Uncertain
24
Dann
Benign
0.78
DEOGEN2
Uncertain
0.44
T;.;T;.;T;.
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.41
FATHMM_MKL
Pathogenic
0.97
D
M_CAP
Benign
0.040
D
MetaRNN
Pathogenic
0.80
D;D;D;D;D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.9
M;.;M;.;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.59
T
PROVEAN
Pathogenic
-7.3
D;.;.;.;.;D
REVEL
Uncertain
0.36
Sift
Uncertain
0.0050
D;.;.;.;.;D
Sift4G
Uncertain
0.026
D;D;D;D;D;D
Polyphen
1.0
D;.;D;.;.;D
Vest4
0.84
MutPred
0.49
Gain of sheet (P = 0.1451);.;Gain of sheet (P = 0.1451);.;Gain of sheet (P = 0.1451);.;
MVP
0.92
MPC
0.68
ClinPred
0.94
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.75
gMVP
0.89

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs148388345; hg19: chr18-72178054; API