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GeneBe

4-122421323-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_139243.4(ADAD1):c.1550G>A(p.Arg517Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000554 in 1,605,920 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000056 ( 0 hom. )

Consequence

ADAD1
NM_139243.4 missense

Scores

7
8
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.00
Variant links:
Genes affected
ADAD1 (HGNC:30713): (adenosine deaminase domain containing 1) 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 act upstream of or within spermatid development. Predicted to be located in nucleus. 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 -4 ACMG points.

BS2
High AC in GnomAd at 7 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADAD1NM_139243.4 linkuse as main transcriptc.1550G>A p.Arg517Gln missense_variant 12/13 ENST00000296513.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADAD1ENST00000296513.7 linkuse as main transcriptc.1550G>A p.Arg517Gln missense_variant 12/132 NM_139243.4 P1Q96M93-1
ADAD1ENST00000388724.6 linkuse as main transcriptc.1517G>A p.Arg506Gln missense_variant 11/121 Q96M93-2
ADAD1ENST00000388725.2 linkuse as main transcriptc.1496G>A p.Arg499Gln missense_variant 11/122 Q96M93-3

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152110
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000865
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000836
AC:
21
AN:
251180
Hom.:
0
AF XY:
0.0000810
AC XY:
11
AN XY:
135756
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.000894
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000981
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000564
AC:
82
AN:
1453810
Hom.:
0
Cov.:
30
AF XY:
0.0000525
AC XY:
38
AN XY:
723366
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000448
Gnomad4 ASJ exome
AF:
0.000697
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000821
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000497
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152110
Hom.:
0
Cov.:
33
AF XY:
0.0000673
AC XY:
5
AN XY:
74290
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000865
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000158
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000659
AC:
8

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 10, 2023The c.1550G>A (p.R517Q) alteration is located in exon 12 (coding exon 10) of the ADAD1 gene. This alteration results from a G to A substitution at nucleotide position 1550, causing the arginine (R) at amino acid position 517 to be replaced by a glutamine (Q). 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
0.53
BayesDel_addAF
Uncertain
0.16
D
BayesDel_noAF
Pathogenic
0.19
Cadd
Pathogenic
33
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.40
T;.;.
Eigen
Pathogenic
0.71
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.94
D;D;D
M_CAP
Pathogenic
0.50
D
MetaRNN
Uncertain
0.63
D;D;D
MetaSVM
Pathogenic
0.84
D
MutationAssessor
Uncertain
2.6
M;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-1.8
N;N;N
REVEL
Pathogenic
0.79
Sift
Uncertain
0.0020
D;T;D
Sift4G
Benign
0.085
T;T;T
Polyphen
1.0
D;D;.
Vest4
0.62
MutPred
0.66
Loss of methylation at R517 (P = 0.0194);.;.;
MVP
0.74
MPC
0.65
ClinPred
0.49
T
GERP RS
4.9
Varity_R
0.56
gMVP
0.66

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: rs778239614; hg19: chr4-123342478; COSMIC: COSV56646868; API