1-154585325-T-A

Variant names:

• chr1-154585325-T-A
• rs398122895
• NM_001111.5:c.3335A>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3 PP5

The NM_001111.5(ADAR):​c.3335A>T​(p.Tyr1112Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y1112H) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ADAR NM_001111.5 missense
• Clinical Significance: Pathogenic/Likely pathogenic no assertion criteria provided P:2
• Conservation: PhyloP100: 7.20
• Publications: 10 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: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.77
• PP5: Variant 1-154585325-T-A is Pathogenic according to our data. Variant chr1-154585325-T-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 39459.Status of the report is no_assertion_criteria_provided, 0 stars.

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.3335A>T	p.Tyr1112Phe	missense	Exon 14 of 15	NP_001102.3	P55265-1
	ADAR	NM_001365045.1		c.3362A>T	p.Tyr1121Phe	missense	Exon 14 of 15	NP_001351974.1
	ADAR	NM_015840.4		c.3257A>T	p.Tyr1086Phe	missense	Exon 14 of 15	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.3335A>T	p.Tyr1112Phe	missense	Exon 14 of 15	ENSP00000357459.4	P55265-1
	ADAR	ENST00000368471.8	TSL:1	c.2450A>T	p.Tyr817Phe	missense	Exon 14 of 15	ENSP00000357456.3	P55265-5
	ADAR	ENST00000649724.2		c.3365A>T	p.Tyr1122Phe	missense	Exon 14 of 15	ENSP00000497932.2	A0AAG2TPY2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic/Likely pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
2	-	-	Aicardi-Goutieres syndrome 6 (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
PhyloP100		7.2
Varity_R		0.57
gMVP		0.55
Mutation Taster		=12/88	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.12		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs398122895; hg19: chr1-154557801;