Is ADAR p.Ala425Val (c.1274C>T) pathogenic?

ADAR p.Ala425Val (c.1274C>T) is classified Uncertain significance in ADAR (ClinVar, Single submitter, 2 submitters; last evaluated 2022-10-19). AlphaMissense: likely benign (0.0691); Absent from gnomAD v4.1; Associated with dyschromatosis symmetrica hereditaria.

What condition is associated with ADAR p.Ala425Val (c.1274C>T)?

ADAR p.Ala425Val (c.1274C>T) is associated with dyschromatosis symmetrica hereditaria, Aicardi-Goutieres syndrome 6 (ClinVar).

How common is ADAR p.Ala425Val (c.1274C>T) in the general population?

ADAR p.Ala425Val (c.1274C>T) is absent from gnomAD v4.1 (gnomAD).

How is Dyschromatosis symmetrica hereditaria inherited?

Typically Autosomal dominant (Orphanet). A genetic counselor can assess individual risk for a family.

What do computational predictors say about ADAR p.Ala425Val (c.1274C>T)?

AlphaMissense predicts likely benign (score 0.0691) — an in-silico prediction, not a clinical call.

ADAR p.Ala425Val

c.1274C>T · rs2526650113 · VCV1721828

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.0691 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

dyschromatosis symmetrica hereditaria

Computational evidence

Protein change
AlphaMissense	0.0691	likely benign
REVEL	0.006	strongly benign-leaning
SaProt	LLR -5.90	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 1.6	GERP -2, phastCons 0.003
Regional constraint	o/e 0.74	unconstrained · MANE · 17 kb · p 1.3e-17 · regional, not allelic
Overall
CADD	6.212	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: ADAR
Protein: p.Ala425Val
Coding: c.1274C>T
MANE Select: NM_001111
dbSNP: rs2526650113
Type: single nucleotide variant
Location: chr1:154601368 (GRCh38)
Gene constraint: LOEUF 0.449 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 68.86 · 24 PDB

Full ADAR gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

dyschromatosis symmetrica hereditaria — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Aicardi-Goutieres syndrome 6

For Dyschromatosis symmetrica hereditaria (Orphanet):

Inheritance: Autosomal dominant
Onset: Childhood

Similar variants

ADAR c.2885+1G>A Likely pathogenic ★★ same condition
ADAR p.Arg1078Cys Pathogenic ★★ same condition
ADAR p.Arg1096Ter Pathogenic/Likely pathogenic ★★ same condition
ADAR p.Arg328Ter Pathogenic ★★ same condition
ADAR p.Arg360Ter Pathogenic/Likely pathogenic ★★ same condition
ADAR p.Arg474Ter Pathogenic ★★ same condition
ADAR p.Gln559Ter Pathogenic ★★ same condition
ADAR p.Lys1122Gln Likely pathogenic ★★ ⚠ same condition

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/adar-p-ala425val (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown