chr16-84191433-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000315906.10(ADAD2):​c.203G>A​(p.Gly68Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000516 in 1,356,766 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000052 ( 0 hom. )

Consequence

ADAD2
ENST00000315906.10 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.10
Variant links:
Genes affected
ADAD2 (HGNC:30714): (adenosine deaminase domain containing 2) Predicted to enable double-stranded RNA adenosine deaminase activity; double-stranded RNA binding activity; and tRNA-specific adenosine deaminase activity. Predicted to be involved in RNA processing and adenosine to inosine editing. Predicted to be active in cytoplasm and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.08194184).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ADAD2NM_001145400.2 linkuse as main transcriptc.203G>A p.Gly68Glu missense_variant 1/10 ENST00000315906.10 NP_001138872.1
ADAD2NM_139174.4 linkuse as main transcriptc.203G>A p.Gly68Glu missense_variant 1/11 NP_631913.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ADAD2ENST00000315906.10 linkuse as main transcriptc.203G>A p.Gly68Glu missense_variant 1/101 NM_001145400.2 ENSP00000325153 P1Q8NCV1-1
ADAD2ENST00000268624.7 linkuse as main transcriptc.203G>A p.Gly68Glu missense_variant 1/112 ENSP00000268624 Q8NCV1-2
ADAD2ENST00000567413.1 linkuse as main transcriptn.243G>A non_coding_transcript_exon_variant 1/24
ADAD2ENST00000567685.1 linkuse as main transcript upstream_gene_variant 3 ENSP00000454950

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD4 exome
AF:
0.00000516
AC:
7
AN:
1356766
Hom.:
0
Cov.:
38
AF XY:
0.00000449
AC XY:
3
AN XY:
667570
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:
0.0000264
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000376
Gnomad4 OTH exome
AF:
0.0000178
GnomAD4 genome
Cov.:
34
Alfa
AF:
0.0000331
Hom.:
0
ExAC
AF:
0.0000115
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 GeneticsFeb 06, 2024The c.203G>A (p.G68E) alteration is located in exon 1 (coding exon 1) of the ADAD2 gene. This alteration results from a G to A substitution at nucleotide position 203, causing the glycine (G) at amino acid position 68 to be replaced by a glutamic acid (E). 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
0.092
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
15
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0010
.;T
Eigen
Benign
-0.90
Eigen_PC
Benign
-0.96
FATHMM_MKL
Benign
0.035
N
LIST_S2
Benign
0.47
T;T
M_CAP
Benign
0.0076
T
MetaRNN
Benign
0.082
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.1
L;L
MutationTaster
Benign
1.0
N;N
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.66
N;N
REVEL
Benign
0.021
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.020
D;D
Polyphen
0.090
B;B
Vest4
0.098
MutPred
0.52
Gain of loop (P = 0);Gain of loop (P = 0);
MVP
0.26
ClinPred
0.24
T
GERP RS
1.3
Varity_R
0.066
gMVP
0.15

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: rs749448838; hg19: chr16-84225039; API