rs3766925

Variant names:

• chr1-154592236-T-A
• rs3766925
• NM_001111.5:c.2271-1827A>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001111.5(ADAR):​c.2271-1827A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.217 in 151,974 control chromosomes in the GnomAD database, including 3,652 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.22 (3652 hom., cov: 32)
• Consequence: ADAR NM_001111.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.340
• Publications: 8 publications found

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

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.8).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.221 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ADAR	NM_001111.5	c.2271-1827A>T		intron_variant	Intron 6 of 14	ENST00000368474.9	NP_001102.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ADAR	ENST00000368474.9	c.2271-1827A>T		intron_variant	Intron 6 of 14	1	NM_001111.5	ENSP00000357459.4

Frequencies

GnomAD3 genomes AF: 0.217 AC: 33005 AN: 151856 Hom.: 3643 Cov.: 32

Gnomad AFR AF: 0.219

Gnomad AMI AF: 0.261

Gnomad AMR AF: 0.187

Gnomad ASJ AF: 0.216

Gnomad EAS AF: 0.119

Gnomad SAS AF: 0.176

Gnomad FIN AF: 0.277

Gnomad MID AF: 0.196

Gnomad NFE AF: 0.224

Gnomad OTH AF: 0.222

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.217 AC: 33042 AN: 151974 Hom.: 3652 Cov.: 32 AF XY: 0.215 AC XY: 15991 AN XY: 74252

African (AFR) AF: 0.220 AC: 9096 AN: 41436

American (AMR) AF: 0.187 AC: 2850 AN: 15262

Ashkenazi Jewish (ASJ) AF: 0.216 AC: 749 AN: 3468

East Asian (EAS) AF: 0.118 AC: 612 AN: 5172

South Asian (SAS) AF: 0.174 AC: 840 AN: 4822

European-Finnish (FIN) AF: 0.277 AC: 2914 AN: 10536

Middle Eastern (MID) AF: 0.194 AC: 57 AN: 294

European-Non Finnish (NFE) AF: 0.224 AC: 15213 AN: 67964

Other (OTH) AF: 0.224 AC: 473 AN: 2108

Alfa AF: 0.214 Hom.: 443

Bravo AF: 0.210

Asia WGS AF: 0.160 AC: 554 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	4.9
DANN	Benign	0.88
PhyloP100		-0.34
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs3766925; hg19: chr1-154564712;