Genetic Variant CNBD2:p.Gly39Val (chr20-35972693-G-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001365709.1(CNBD2):c.116G>T(p.Gly39Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000157 in 1,461,756 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

CNBD2
NM_001365709.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.86

Variant links:

Genes affected

CNBD2 (HGNC:16145): (cyclic nucleotide binding domain containing 2) Predicted to enable cAMP binding activity. Predicted to be involved in spermatogenesis. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

CNBD2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.37473983).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CNBD2	NM_001365709.1 link	c.116G>T	p.Gly39Val	missense_variant	Exon 2 of 12	ENST00000373973.7	NP_001352638.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CNBD2	ENST00000373973.7 link	c.116G>T	p.Gly39Val	missense_variant	Exon 2 of 12	5	NM_001365709.1	ENSP00000363084.3		Q96M20-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000795

AC:

AN:

251486

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135916

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000157

AC:

AN:

1461756

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727198

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000198

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 20, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.116G>T (p.G39V) alteration is located in exon 2 (coding exon 2) of the CNBD2 gene. This alteration results from a G to T substitution at nucleotide position 116, causing the glycine (G) at amino acid position 39 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

Uncertain

0.44

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.26

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.034

.;T;.;T;.

Eigen

Pathogenic

0.79

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.88

D;D;D;D;D

M_CAP

Benign

0.0041

MetaRNN

Benign

0.37

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.9

.;M;M;.;M

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-3.2

.;D;D;.;D

REVEL

Benign

0.27

Sift

Uncertain

0.0090

.;D;D;.;T

Sift4G

Pathogenic

0.0

D;D;D;D;D

Polyphen

1.0

.;D;D;.;.

Vest4

0.72, 0.71, 0.74, 0.68

MVP

0.36

MPC

0.59

ClinPred

0.97

GERP RS

5.9

Varity_R

0.35

gMVP

0.47

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over