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GeneBe

10-1184875-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_018702.4(ADARB2):c.2029C>T(p.Arg677Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000158 in 1,613,248 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R677Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

ADARB2
NM_018702.4 missense

Scores

2
10
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.91
Variant links:
Genes affected
ADARB2 (HGNC:227): (adenosine deaminase RNA specific B2 (inactive)) This gene encodes a member of the double-stranded RNA adenosine deaminase family of RNA-editing enzymes and may play a regulatory role in RNA editing. [provided by RefSeq, Jul 2008]
LINC00200 (HGNC:30974): (long intergenic non-protein coding RNA 200)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADARB2NM_018702.4 linkuse as main transcriptc.2029C>T p.Arg677Trp missense_variant 9/10 ENST00000381312.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADARB2ENST00000381312.6 linkuse as main transcriptc.2029C>T p.Arg677Trp missense_variant 9/101 NM_018702.4 P1Q9NS39-1
LINC00200ENST00000655745.1 linkuse as main transcriptn.264+24238G>A intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.000151
AC:
23
AN:
152240
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.000847
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000273
AC:
68
AN:
248746
Hom.:
0
AF XY:
0.000319
AC XY:
43
AN XY:
134814
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.000458
Gnomad FIN exome
AF:
0.000886
Gnomad NFE exome
AF:
0.000286
Gnomad OTH exome
AF:
0.000330
GnomAD4 exome
AF:
0.000159
AC:
232
AN:
1461008
Hom.:
0
Cov.:
30
AF XY:
0.000188
AC XY:
137
AN XY:
726798
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000348
Gnomad4 FIN exome
AF:
0.00104
Gnomad4 NFE exome
AF:
0.000114
Gnomad4 OTH exome
AF:
0.000215
GnomAD4 genome
AF:
0.000151
AC:
23
AN:
152240
Hom.:
0
Cov.:
34
AF XY:
0.000134
AC XY:
10
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000847
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.000152
Hom.:
0
Bravo
AF:
0.000155
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000280
AC:
34
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

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 GeneticsSep 29, 2023The c.2029C>T (p.R677W) alteration is located in exon 9 (coding exon 9) of the ADARB2 gene. This alteration results from a C to T substitution at nucleotide position 2029, causing the arginine (R) at amino acid position 677 to be replaced by a tryptophan (W). 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
0.12
BayesDel_addAF
Benign
-0.075
T
BayesDel_noAF
Uncertain
-0.010
Cadd
Benign
21
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D;.;.
Eigen
Benign
-0.28
Eigen_PC
Benign
-0.51
FATHMM_MKL
Benign
0.26
N
LIST_S2
Uncertain
0.92
D;D;D
M_CAP
Pathogenic
0.42
D
MetaRNN
Uncertain
0.71
D;D;D
MetaSVM
Uncertain
0.59
D
MutationAssessor
Uncertain
2.8
M;.;.
MutationTaster
Benign
0.93
N;N;N
PrimateAI
Benign
0.27
T
PROVEAN
Pathogenic
-5.3
D;D;D
REVEL
Uncertain
0.45
Sift
Uncertain
0.0090
D;D;D
Sift4G
Uncertain
0.011
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.61
MVP
0.71
MPC
0.82
ClinPred
0.35
T
GERP RS
1.9
Varity_R
0.30
gMVP
0.51

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs369823256; hg19: chr10-1230815; COSMIC: COSV67181873; API