chr21-45176010-C-T

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS1

The NM_001112.4(ADARB1):​c.309C>T​(p.Pro103=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00042 in 1,614,160 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0020 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00025 ( 1 hom. )

Consequence

ADARB1
NM_001112.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -3.73
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 Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 21-45176010-C-T is Benign according to our data. Variant chr21-45176010-C-T is described in ClinVar as [Benign]. Clinvar id is 786691.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-3.72 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00205 (312/152322) while in subpopulation AFR AF= 0.00712 (296/41552). AF 95% confidence interval is 0.00646. There are 1 homozygotes in gnomad4. There are 152 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADARB1NM_001112.4 linkuse as main transcriptc.309C>T p.Pro103= synonymous_variant 4/11 ENST00000348831.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADARB1ENST00000348831.9 linkuse as main transcriptc.309C>T p.Pro103= synonymous_variant 4/111 NM_001112.4 P1P78563-2

Frequencies

GnomAD3 genomes
AF:
0.00204
AC:
311
AN:
152204
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00712
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000523
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00191
GnomAD3 exomes
AF:
0.000569
AC:
143
AN:
251256
Hom.:
1
AF XY:
0.000493
AC XY:
67
AN XY:
135792
show subpopulations
Gnomad AFR exome
AF:
0.00616
Gnomad AMR exome
AF:
0.000347
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000784
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000250
AC:
366
AN:
1461838
Hom.:
1
Cov.:
31
AF XY:
0.000241
AC XY:
175
AN XY:
727222
show subpopulations
Gnomad4 AFR exome
AF:
0.00657
Gnomad4 AMR exome
AF:
0.000403
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000707
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000288
Gnomad4 OTH exome
AF:
0.000513
GnomAD4 genome
AF:
0.00205
AC:
312
AN:
152322
Hom.:
1
Cov.:
32
AF XY:
0.00204
AC XY:
152
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.00712
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00189
Alfa
AF:
0.000778
Hom.:
0
Bravo
AF:
0.00241
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMar 29, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
0.50
DANN
Benign
0.50

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: rs115658841; hg19: chr21-46595925; API