16-84191354-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000315906.10(ADAD2):​c.124G>T​(p.Ala42Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000071 in 1,408,052 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 35)
Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

ADAD2
ENST00000315906.10 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.117
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.047719687).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ADAD2NM_001145400.2 linkuse as main transcriptc.124G>T p.Ala42Ser missense_variant 1/10 ENST00000315906.10 NP_001138872.1
ADAD2NM_139174.4 linkuse as main transcriptc.124G>T p.Ala42Ser 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.124G>T p.Ala42Ser missense_variant 1/101 NM_001145400.2 ENSP00000325153 P1Q8NCV1-1
ADAD2ENST00000268624.7 linkuse as main transcriptc.124G>T p.Ala42Ser missense_variant 1/112 ENSP00000268624 Q8NCV1-2
ADAD2ENST00000567413.1 linkuse as main transcriptn.164G>T non_coding_transcript_exon_variant 1/24

Frequencies

GnomAD3 genomes
Cov.:
35
GnomAD4 exome
AF:
7.10e-7
AC:
1
AN:
1408052
Hom.:
0
Cov.:
89
AF XY:
0.00
AC XY:
0
AN XY:
696912
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:
0.00
Gnomad4 FIN exome
AF:
0.0000224
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
35

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 02, 2024The c.124G>T (p.A42S) alteration is located in exon 1 (coding exon 1) of the ADAD2 gene. This alteration results from a G to T substitution at nucleotide position 124, causing the alanine (A) at amino acid position 42 to be replaced by a serine (S). 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
0.079
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
0.29
DANN
Benign
0.69
DEOGEN2
Benign
0.00091
.;T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.056
N
LIST_S2
Benign
0.23
T;T
M_CAP
Benign
0.0033
T
MetaRNN
Benign
0.048
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
0.34
N;N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.40
T
PROVEAN
Benign
0.020
N;N
REVEL
Benign
0.012
Sift
Benign
0.24
T;T
Sift4G
Benign
0.34
T;T
Polyphen
0.017
B;B
Vest4
0.077
MutPred
0.30
Gain of loop (P = 0.0045);Gain of loop (P = 0.0045);
MVP
0.095
ClinPred
0.072
T
GERP RS
-4.0
Varity_R
0.061
gMVP
0.12

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-84224960; API