18-74521017-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_018235.3(CNDP2):c.*949A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.954 in 152,198 control chromosomes in the GnomAD database, including 69,615 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.95 (69610 hom., cov: 32)
  • Exomes 𝑓: 1.0 (5 hom.)
• Consequence: CNDP2 NM_018235.3 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0280

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.993 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CNDP2	NM_018235.3	c.*949A>G		3_prime_UTR_variant	12/12	ENST00000324262.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CNDP2	ENST00000324262.9	c.*949A>G		3_prime_UTR_variant	12/12	1	NM_018235.3	P1

Frequencies

GnomAD3 genomes AF: 0.954 AC: 145101 AN: 152070 Hom.: 69568 Cov.: 32

Gnomad AFR AF: 0.855

Gnomad AMI AF: 1.00

Gnomad AMR AF: 0.978

Gnomad ASJ AF: 1.00

Gnomad EAS AF: 0.902

Gnomad SAS AF: 1.00

Gnomad FIN AF: 1.00

Gnomad MID AF: 0.997

Gnomad NFE AF: 0.999

Gnomad OTH AF: 0.964

GnomAD4 exome AF: 1.00 AC: 10 AN: 10 Hom.: 5 Cov.: 0 AF XY: 1.00 AC XY: 2 AN XY: 2

Gnomad4 FIN exome AF: 1.00

Gnomad4 NFE exome AF: 1.00

Gnomad4 OTH exome AF: 1.00

GnomAD4 genome AF: 0.954 AC: 145201 AN: 152188 Hom.: 69610 Cov.: 32 AF XY: 0.955 AC XY: 71052 AN XY: 74428

Gnomad4 AFR AF: 0.855

Gnomad4 AMR AF: 0.978

Gnomad4 ASJ AF: 1.00

Gnomad4 EAS AF: 0.902

Gnomad4 SAS AF: 1.00

Gnomad4 FIN AF: 1.00

Gnomad4 NFE AF: 0.999

Gnomad4 OTH AF: 0.962

Alfa AF: 0.982 Hom.: 14615

Bravo AF: 0.948

Asia WGS AF: 0.956 AC: 3323 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
Cadd	Benign	1.2
Dann	Benign	0.28
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs890335; hg19: chr18-72188252;