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GeneBe

21-45176311-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_001112.4(ADARB1):​c.610G>T​(p.Gly204Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,754 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ADARB1
NM_001112.4 missense

Scores

2
6
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.09
Variant links:
Genes affected
ADARB1 (HGNC:226): (adenosine deaminase RNA specific B1) This gene encodes the enzyme responsible for pre-mRNA editing of the glutamate receptor subunit B by site-specific deamination of adenosines. Studies in rat found that this enzyme acted on its own pre-mRNA molecules to convert an AA dinucleotide to an AI dinucleotide which resulted in a new splice site. Alternative splicing of this gene results in several transcript variants, some of which have been characterized by the presence or absence of an ALU cassette insert and a short or long C-terminal region. [provided by RefSeq, Jul 2008]

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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;
PP2
Missense variant where missense usually causes diseases, ADARB1
BP4
Computational evidence support a benign effect (MetaRNN=0.33869603).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADARB1NM_001112.4 linkuse as main transcriptc.610G>T p.Gly204Trp missense_variant 4/11 ENST00000348831.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADARB1ENST00000348831.9 linkuse as main transcriptc.610G>T p.Gly204Trp missense_variant 4/111 NM_001112.4 P1P78563-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461754
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727184
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 12, 2024The c.610G>T (p.G204W) alteration is located in exon 4 (coding exon 2) of the ADARB1 gene. This alteration results from a G to T substitution at nucleotide position 610, causing the glycine (G) at amino acid position 204 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
0.24
BayesDel_addAF
Benign
0.0056
T
BayesDel_noAF
Benign
-0.23
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.45
T;.;.;.;T
Eigen
Pathogenic
0.68
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.89
D;D;D;D;.
M_CAP
Benign
0.034
D
MetaRNN
Benign
0.34
T;T;T;T;T
MetaSVM
Benign
-0.85
T
MutationAssessor
Benign
1.9
L;L;L;.;L
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.71
T
Sift4G
Uncertain
0.015
D;D;D;D;D
Polyphen
1.0
D;D;.;.;D
Vest4
0.52
MutPred
0.26
Loss of glycosylation at S203 (P = 0.0094);Loss of glycosylation at S203 (P = 0.0094);Loss of glycosylation at S203 (P = 0.0094);.;Loss of glycosylation at S203 (P = 0.0094);
MVP
0.25
ClinPred
0.86
D
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.056
gMVP
0.48

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr21-46596226; COSMIC: COSV62345844; COSMIC: COSV62345844; API