NM_001111.5:c.2271-1256A>T

Variant names:

• chr1-154591665-T-A
• rs3766927
• NM_001111.5:c.2271-1256A>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001111.5(ADAR):​c.2271-1256A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 33)
• Consequence: ADAR NM_001111.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.428
• Publications: 7 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 6

  Inheritance: AD, AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• dyschromatosis symmetrica hereditaria

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
• ADAR-related type 1 interferonopathy

  Inheritance: AR, AD Classification: DEFINITIVE Submitted by: ClinGen
• Aicardi-Goutieres syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• 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: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001111.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAR	NM_001111.5	MANE Select	c.2271-1256A>T		intron	N/A	NP_001102.3	P55265-1
	ADAR	NM_001365045.1		c.2298-1256A>T		intron	N/A	NP_001351974.1
	ADAR	NM_015840.4		c.2271-1256A>T		intron	N/A	NP_056655.3	P55265-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAR	ENST00000368474.9	TSL:1 MANE Select	c.2271-1256A>T		intron	N/A	ENSP00000357459.4	P55265-1
	ADAR	ENST00000368471.8	TSL:1	c.1386-1256A>T		intron	N/A	ENSP00000357456.3	P55265-5
	ADAR	ENST00000649724.2		c.2301-1256A>T		intron	N/A	ENSP00000497932.2	A0AAG2TPY2

Frequencies

GnomAD3 genomes Cov.: 33

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

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	1.4
DANN	Benign	0.74
PhyloP100		-0.43

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: rs3766927; hg19: chr1-154564141;