chr20-35984023-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001365709.1(CNBD2):​c.449G>A​(p.Gly150Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,614,082 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: 31)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

CNBD2
NM_001365709.1 missense

Scores

5
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.03
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.956

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CNBD2NM_001365709.1 linkuse as main transcriptc.449G>A p.Gly150Asp missense_variant 5/12 ENST00000373973.7 NP_001352638.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CNBD2ENST00000373973.7 linkuse as main transcriptc.449G>A p.Gly150Asp missense_variant 5/125 NM_001365709.1 ENSP00000363084.3 Q96M20-1
CNBD2ENST00000538900.1 linkuse as main transcriptc.449G>A p.Gly150Asp missense_variant 5/111 ENSP00000442729.1 Q96M20-3
CNBD2ENST00000463258.6 linkuse as main transcriptn.408-604G>A intron_variant 1 ENSP00000476014.1 U3KQM1
CNBD2ENST00000349339.5 linkuse as main transcriptc.449G>A p.Gly150Asp missense_variant 5/122 ENSP00000340954.1 Q96M20-2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152202
Hom.:
0
Cov.:
31
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000358
AC:
9
AN:
251440
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135896
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:
0.000294
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000164
AC:
24
AN:
1461880
Hom.:
0
Cov.:
32
AF XY:
0.0000248
AC XY:
18
AN XY:
727238
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:
0.000278
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:
152202
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000247
AC:
3

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 GeneticsJan 30, 2024The c.449G>A (p.G150D) alteration is located in exon 5 (coding exon 5) of the CNBD2 gene. This alteration results from a G to A substitution at nucleotide position 449, causing the glycine (G) at amino acid position 150 to be replaced by an aspartic acid (D). 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
0.43
BayesDel_addAF
Uncertain
0.021
T
BayesDel_noAF
Uncertain
0.090
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.55
D;.;.
Eigen
Uncertain
0.65
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Benign
0.76
D
LIST_S2
Benign
0.80
T;T;T
M_CAP
Benign
0.063
D
MetaRNN
Pathogenic
0.96
D;D;D
MetaSVM
Pathogenic
0.92
D
MutationAssessor
Pathogenic
3.0
M;M;M
MutationTaster
Benign
0.97
D;D;D
PrimateAI
Benign
0.46
T
PROVEAN
Pathogenic
-5.3
D;D;D
REVEL
Pathogenic
0.80
Sift
Uncertain
0.0090
D;D;D
Sift4G
Uncertain
0.012
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.70
MutPred
0.86
Loss of MoRF binding (P = 0.0713);Loss of MoRF binding (P = 0.0713);Loss of MoRF binding (P = 0.0713);
MVP
0.70
MPC
0.62
ClinPred
0.95
D
GERP RS
3.4
Varity_R
0.49
gMVP
0.81

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs746314671; hg19: chr20-34571945; API