rs200830156

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_001111.5(ADAR):​c.1543G>T​(p.Ala515Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000254 in 1,614,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A515T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

ADAR
NM_001111.5 missense

Scores

19

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 1.06

Publications

2 publications found
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]
ADAR Gene-Disease associations (from GenCC):
  • Aicardi-Goutieres syndrome
    Inheritance: AD, AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • dyschromatosis symmetrica hereditaria
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), G2P
  • Aicardi-Goutieres syndrome 6
    Inheritance: AR, AD Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
  • familial infantile bilateral striatal necrosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Leigh syndrome
    Inheritance: AR Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.050566077).
BP6
Variant 1-154601099-C-A is Benign according to our data. Variant chr1-154601099-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 540263.
BS1
Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.000271 (396/1461894) while in subpopulation NFE AF = 0.000352 (391/1112012). AF 95% confidence interval is 0.000323. There are 0 homozygotes in GnomAdExome4. There are 201 alleles in the male GnomAdExome4 subpopulation. Median coverage is 30. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ADARNM_001111.5 linkc.1543G>T p.Ala515Ser 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.1543G>T p.Ala515Ser missense_variant Exon 2 of 15 1 NM_001111.5 ENSP00000357459.4 P55265-1

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152152
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000191
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000119
AC:
30
AN:
251468
AF XY:
0.000103
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000255
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000271
AC:
396
AN:
1461894
Hom.:
0
Cov.:
30
AF XY:
0.000276
AC XY:
201
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000352
AC:
391
AN:
1112012
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
26
52
79
105
131
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000920
AC:
14
AN:
152152
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74314
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41422
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000191
AC:
13
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000294
Hom.:
0
Bravo
AF:
0.000117
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000519
AC:
2
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.000218
EpiControl
AF:
0.000296

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
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

- -

not provided Uncertain:1
Dec 10, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Symmetrical dyschromatosis of extremities;C3539013:Aicardi-Goutieres syndrome 6 Uncertain:1
Dec 12, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 515 of the ADAR protein (p.Ala515Ser). This variant is present in population databases (rs200830156, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with ADAR-related conditions. ClinVar contains an entry for this variant (Variation ID: 540263). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt ADAR protein function with a negative predictive value of 80%. 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. -

Intellectual disability Benign:1
Apr 17, 2019
Cambridge Genomics Laboratory, East Genomic Laboratory Hub, NHS Genomic Medicine Service
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.080
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
13
DANN
Benign
0.55
DEOGEN2
Benign
0.25
T;.;T;.;.;.;.;.;.;.;.
Eigen
Benign
-0.83
Eigen_PC
Benign
-0.70
FATHMM_MKL
Benign
0.74
D
LIST_S2
Benign
0.76
.;.;T;.;.;.;.;.;T;T;T
M_CAP
Benign
0.029
D
MetaRNN
Benign
0.051
T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
0.055
N;.;N;.;.;.;.;.;.;N;.
PhyloP100
1.1
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-0.12
N;.;.;.;N;.;.;.;.;.;.
REVEL
Benign
0.13
Sift
Benign
0.77
T;.;.;.;T;.;.;.;.;.;.
Sift4G
Benign
0.35
T;.;.;.;T;.;.;.;.;.;.
Polyphen
0.23
B;.;B;.;.;.;.;.;.;B;.
Vest4
0.13
MVP
0.60
MPC
0.27
ClinPred
0.031
T
GERP RS
0.46
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.023
gMVP
0.22
Mutation Taster
=98/2
polymorphism

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

Other links and lift over

dbSNP: rs200830156; hg19: chr1-154573575; COSMIC: COSV52717946; COSMIC: COSV52717946; API