rs1553213121

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001111.5(ADAR):​c.1103A>T​(p.Asn368Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N368S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ADAR
NM_001111.5 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.392
Variant links:
Genes affected
ADAR (HGNC:225): (adenosine deaminase RNA specific) This gene encodes the enzyme responsible for RNA editing by site-specific deamination of adenosines. This enzyme destabilizes double-stranded RNA through conversion of adenosine to inosine. Mutations in this gene have been associated with dyschromatosis symmetrica hereditaria. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the ADAR gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 16 curated pathogenic missense variants (we use a threshold of 10). The gene has 30 curated benign missense variants. Gene score misZ: 2.2714 (below the threshold of 3.09). Trascript score misZ: 3.4067 (above the threshold of 3.09). GenCC associations: The gene is linked to dyschromatosis symmetrica hereditaria, Aicardi-Goutieres syndrome, Aicardi-Goutieres syndrome 6, Leigh syndrome, familial infantile bilateral striatal necrosis.
BP4
Computational evidence support a benign effect (MetaRNN=0.11686352).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ADARNM_001111.5 linkc.1103A>T p.Asn368Ile missense_variant Exon 2 of 15 ENST00000368474.9 NP_001102.3 P55265-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ADARENST00000368474.9 linkc.1103A>T p.Asn368Ile missense_variant Exon 2 of 15 1 NM_001111.5 ENSP00000357459.4 P55265-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460870
Hom.:
0
Cov.:
89
AF XY:
0.00000138
AC XY:
1
AN XY:
726798
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:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Aicardi-Goutieres syndrome 6 Uncertain:1
Apr 11, 2023
Genome-Nilou Lab
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Symmetrical dyschromatosis of extremities;C3539013:Aicardi-Goutieres syndrome 6 Uncertain:1
Apr 07, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 540264). This variant has not been reported in the literature in individuals affected with ADAR-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces asparagine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 368 of the ADAR protein (p.Asn368Ile). -

not provided Uncertain:1
May 31, 2022
Revvity Omics, Revvity
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
12
DANN
Uncertain
0.98
DEOGEN2
Uncertain
0.45
T;.;T;.;.;.;.;.;.;.;.
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.54
FATHMM_MKL
Benign
0.49
N
LIST_S2
Benign
0.85
.;.;T;.;.;.;.;.;T;T;T
M_CAP
Benign
0.0099
T
MetaRNN
Benign
0.12
T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.98
T
MutationAssessor
Uncertain
2.0
M;.;M;.;.;.;.;.;.;M;.
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-1.1
N;.;.;.;N;.;.;.;.;.;.
REVEL
Benign
0.058
Sift
Uncertain
0.016
D;.;.;.;D;.;.;.;.;.;.
Sift4G
Uncertain
0.054
T;.;.;.;T;.;.;.;.;.;.
Polyphen
0.88
P;.;P;.;.;.;.;.;.;P;.
Vest4
0.22
MutPred
0.29
Loss of disorder (P = 0.0718);.;Loss of disorder (P = 0.0718);.;.;.;.;.;.;Loss of disorder (P = 0.0718);.;
MVP
0.26
MPC
0.43
ClinPred
0.43
T
GERP RS
-0.20
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.18
gMVP
0.18

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: rs1553213121; hg19: chr1-154574015; API