21-45176414-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3

The NM_001112.4(ADARB1):ā€‹c.713T>Cā€‹(p.Met238Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

ADARB1
NM_001112.4 missense

Scores

8
7
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.61
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ADARB1. . Trascript score misZ 3.725 (greater than threshold 3.09). GenCC has associacion of gene with neurodevelopmental disorder with hypotonia, microcephaly, and seizures.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.837

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADARB1NM_001112.4 linkuse as main transcriptc.713T>C p.Met238Thr missense_variant 4/11 ENST00000348831.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADARB1ENST00000348831.9 linkuse as main transcriptc.713T>C p.Met238Thr missense_variant 4/111 NM_001112.4 P1P78563-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251472
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135912
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461894
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727248
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:
0.0000116
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:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Neurodevelopmental disorder with hypotonia, microcephaly, and seizures Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityDec 06, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.28
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.61
D;.;.;.;D
Eigen
Uncertain
0.68
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.76
T;T;T;T;.
M_CAP
Uncertain
0.14
D
MetaRNN
Pathogenic
0.84
D;D;D;D;D
MetaSVM
Uncertain
0.15
D
MutationAssessor
Benign
2.0
M;M;M;.;M
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Pathogenic
0.80
T
PROVEAN
Uncertain
-3.5
.;D;D;.;D
REVEL
Pathogenic
0.72
Sift
Uncertain
0.0070
.;D;D;.;D
Sift4G
Benign
0.085
T;T;T;T;T
Polyphen
0.99
D;P;.;.;D
Vest4
0.83
MutPred
0.38
Gain of glycosylation at M238 (P = 0.0187);Gain of glycosylation at M238 (P = 0.0187);Gain of glycosylation at M238 (P = 0.0187);.;Gain of glycosylation at M238 (P = 0.0187);
MVP
0.74
ClinPred
0.84
D
GERP RS
5.3
Varity_R
0.80
gMVP
0.69

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: rs932355965; hg19: chr21-46596329; API