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GeneBe

18-74505979-A-G

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_018235.3(CNDP2):c.335A>G(p.Asp112Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000411 in 1,604,664 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 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000037 ( 2 hom. )

Consequence

CNDP2
NM_018235.3 missense

Scores

2
5
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.37
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 Likely_benign. Variant got -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2809164).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CNDP2NM_018235.3 linkuse as main transcriptc.335A>G p.Asp112Gly missense_variant 4/12 ENST00000324262.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CNDP2ENST00000324262.9 linkuse as main transcriptc.335A>G p.Asp112Gly missense_variant 4/121 NM_018235.3 P1Q96KP4-1

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152236
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000289
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:
0.0000332
AC:
8
AN:
240884
Hom.:
0
AF XY:
0.0000305
AC XY:
4
AN XY:
130998
show subpopulations
Gnomad AFR exome
AF:
0.000313
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000337
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000181
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000372
AC:
54
AN:
1452310
Hom.:
2
Cov.:
30
AF XY:
0.0000471
AC XY:
34
AN XY:
722618
show subpopulations
Gnomad4 AFR exome
AF:
0.000794
Gnomad4 AMR exome
AF:
0.0000243
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000235
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000384
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152354
Hom.:
0
Cov.:
33
AF XY:
0.0000805
AC XY:
6
AN XY:
74500
show subpopulations
Gnomad4 AFR
AF:
0.000288
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
Alfa
AF:
0.0000987
Hom.:
0
Bravo
AF:
0.0000756
ExAC
AF:
0.0000494
AC:
6

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 01, 2021The c.335A>G (p.D112G) alteration is located in exon 4 (coding exon 3) of the CNDP2 gene. This alteration results from a A to G substitution at nucleotide position 335, causing the aspartic acid (D) at amino acid position 112 to be replaced by a glycine (G). 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
0.22
BayesDel_addAF
Benign
-0.077
T
BayesDel_noAF
Uncertain
-0.040
Cadd
Uncertain
24
Dann
Uncertain
0.98
DEOGEN2
Benign
0.081
T;T;.;T;.;T;T;T;T;.;T;T
Eigen
Uncertain
0.26
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.97
D;.;D;D;D;D;D;D;D;D;D;D
M_CAP
Benign
0.025
D
MetaRNN
Benign
0.28
T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.76
T
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.52
T
Sift4G
Benign
0.14
T;T;T;T;T;T;T;T;T;T;T;T
Polyphen
0.0030
.;B;.;B;.;.;.;.;.;.;.;.
Vest4
0.84, 0.86
MVP
0.72
MPC
0.23
ClinPred
0.33
T
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.85
gMVP
0.85

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: rs573310225; hg19: chr18-72173214; API