chr1-154584966-C-A

Variant names:

• chr1-154584966-C-A
• rs866441514
• NM_001111.5:c.3521G>T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_001111.5(ADAR):​c.3521G>T​(p.Arg1174Leu) 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1174C) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ADAR NM_001111.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.36

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the ADAR gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 16 curated pathogenic missense variants (we use a threshold of 10). The gene has 30 curated benign missense variants. Gene score misZ: 2.2714 (below the threshold of 3.09). Trascript score misZ: 3.4067 (above the threshold of 3.09). GenCC associations: The gene is linked to dyschromatosis symmetrica hereditaria, Aicardi-Goutieres syndrome, Aicardi-Goutieres syndrome 6, Leigh syndrome, familial infantile bilateral striatal necrosis.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.751

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ADAR	NM_001111.5	c.3521G>T	p.Arg1174Leu	missense_variant	Exon 15 of 15	ENST00000368474.9	NP_001102.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ADAR	ENST00000368474.9	c.3521G>T	p.Arg1174Leu	missense_variant	Exon 15 of 15	1	NM_001111.5	ENSP00000357459.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.94
BayesDel_addAF	Pathogenic	0.26	D
BayesDel_noAF	Uncertain	0.13
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.80	D;.;D;.;.;.;.;.;.;.
Eigen	Uncertain	0.68
Eigen_PC	Uncertain	0.66
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.91	.;.;D;.;.;.;.;.;D;D
M_CAP	Pathogenic	0.31	D
MetaRNN	Pathogenic	0.75	D;D;D;D;D;D;D;D;D;D
MetaSVM	Pathogenic	0.82	D
MutationAssessor	Uncertain	2.5	M;.;M;.;.;.;.;.;.;.
PrimateAI	Uncertain	0.52	T
PROVEAN	Uncertain	-3.2	D;.;.;.;D;.;.;.;.;N
REVEL	Pathogenic	0.71
Sift	Uncertain	0.0060	D;.;.;.;T;.;.;.;.;T
Sift4G	Uncertain	0.011	D;.;.;.;D;.;.;.;.;.
Polyphen		1.0	D;.;D;.;.;.;.;.;.;D
Vest4		0.47
MutPred		0.58		Loss of MoRF binding (P = 0.0618);.;Loss of MoRF binding (P = 0.0618);.;.;.;.;.;.;.;
MVP		0.86
MPC		2.2
ClinPred		1.0	D
GERP RS		4.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.54
gMVP		0.81

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs866441514; hg19: chr1-154557442;