chr16-84191352-G-A

Variant summary

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

The ENST00000315906.10(ADAD2):​c.122G>A​(p.Ser41Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000832 in 1,561,826 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: 𝑓 0.000013 ( 0 hom., cov: 35)
Exomes 𝑓: 0.0000078 ( 0 hom. )

Consequence

ADAD2
ENST00000315906.10 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.285
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=0.041899472).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ADAD2NM_001145400.2 linkuse as main transcriptc.122G>A p.Ser41Asn missense_variant 1/10 ENST00000315906.10 NP_001138872.1
ADAD2NM_139174.4 linkuse as main transcriptc.122G>A p.Ser41Asn 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.122G>A p.Ser41Asn missense_variant 1/101 NM_001145400.2 ENSP00000325153 P1Q8NCV1-1
ADAD2ENST00000268624.7 linkuse as main transcriptc.122G>A p.Ser41Asn missense_variant 1/112 ENSP00000268624 Q8NCV1-2
ADAD2ENST00000567413.1 linkuse as main transcriptn.162G>A non_coding_transcript_exon_variant 1/24

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152190
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD4 exome
AF:
0.00000780
AC:
11
AN:
1409518
Hom.:
0
Cov.:
88
AF XY:
0.00000860
AC XY:
6
AN XY:
697680
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000281
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000259
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000826
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152308
Hom.:
0
Cov.:
35
AF XY:
0.0000134
AC XY:
1
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000435
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.00000875
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 GeneticsJun 29, 2023The c.122G>A (p.S41N) 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 122, causing the serine (S) at amino acid position 41 to be replaced by an asparagine (N). 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
0.087
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.84
CADD
Benign
5.3
DANN
Benign
0.80
DEOGEN2
Benign
0.00029
.;T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.0026
N
LIST_S2
Benign
0.35
T;T
M_CAP
Benign
0.0028
T
MetaRNN
Benign
0.042
T;T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
0.0
N;N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-0.30
N;N
REVEL
Benign
0.022
Sift
Benign
0.45
T;T
Sift4G
Benign
0.40
T;T
Polyphen
0.0
B;B
Vest4
0.030
MutPred
0.35
Loss of glycosylation at S41 (P = 7e-04);Loss of glycosylation at S41 (P = 7e-04);
MVP
0.10
ClinPred
0.021
T
GERP RS
1.6
Varity_R
0.039
gMVP
0.058

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.

Other links and lift over

dbSNP: rs767625659; hg19: chr16-84224958; API