Is DSP p.Asp297His (c.889G>C) pathogenic?

DSP p.Asp297His (c.889G>C) is classified Uncertain significance in DSP (ClinVar, Single submitter, 1 submitter; last evaluated 2022-10-17). AlphaMissense: likely pathogenic (0.9837); Absent from gnomAD v4.1; Associated with arrhythmogenic right ventricular dysplasia 8.

What condition is associated with DSP p.Asp297His (c.889G>C)?

DSP p.Asp297His (c.889G>C) is associated with arrhythmogenic right ventricular dysplasia 8, arrhythmogenic cardiomyopathy with wooly hair and keratoderma (ClinVar).

How common is DSP p.Asp297His (c.889G>C) in the general population?

DSP p.Asp297His (c.889G>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DSP p.Asp297His (c.889G>C)?

AlphaMissense predicts likely pathogenic (score 0.9837) — an in-silico prediction, not a clinical call.

DSP p.Asp297His

Q: How is Inherited isolated arrhythmogenic cardiomyopathy inherited?

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

c.889G>C · rs201930322 · VCV850881

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9837 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

2/2 damaging

AlphaMissense, REVEL

Conditions

arrhythmogenic right ventricular dysplasia 8

Computational evidence

Protein change
AlphaMissense	0.9837	likely pathogenic · top 6% in DSP
REVEL	0.945	strongly pathogenic-leaning
⇒ AlphaMissense and REVEL both call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 2.2, phastCons 1
Regional constraint	o/e 0.94	unconstrained · MANE · 29 kb · p 0.14 · regional, not allelic
Overall
CADD	29.3	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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: DSP
Protein: p.Asp297His
Coding: c.889G>C
MANE Select: NM_004415
dbSNP: rs201930322
Type: single nucleotide variant
Location: chr6:7565470 (GRCh38)
Gene constraint: LOEUF 0.443 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 297: the 'globular 1' region; the 'interaction with mapre1' region; the 'interaction with jup and pkp2' region; the 'interaction with pkp1' region; a UniProt-annotated variant site (in arvd8; uncertain significance); a UniProt-annotated variant site (in dcwhkta; uncertain significance); a UniProt-annotated variant site (in arvd8; likely pathogenic; results in an unstable protein that forms perinuclear aggregates); a UniProt-annotated variant site (in arvd8 and dcwhkta; uncertain significance)

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

Disease context

arrhythmogenic right ventricular dysplasia 8 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: arrhythmogenic cardiomyopathy with wooly hair and keratoderma

For Inherited isolated arrhythmogenic cardiomyopathy (Orphanet):

Inheritance: Autosomal dominant
Onset: No data available

Similar variants

DSP p.Asp297Tyr Uncertain significance ★★ ⚠ same residue
DSP p.Asp297= Likely benign ★★ same residue
DSP p.Asp297Asn Conflicting classifications of pathogenicity ★ ⚠ same residue
DSP p.Asp297Glu Uncertain significance ★ ⚠ same residue
DSP c.1141-2A>T Likely pathogenic ★★ same condition
DSP c.1266+2T>C Likely pathogenic ★★ same condition
DSP c.1574+1G>A Likely pathogenic ★★ same condition
DSP c.2130+1G>A Pathogenic/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/dsp-p-asp297his (accessed [today's date]).

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