Is DSG2 p.Ala917= (c.2751G>C) pathogenic?

DSG2 p.Ala917= (c.2751G>C) is classified Likely benign in DSG2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-03-11). Absent from gnomAD v4.1; Associated with arrhythmogenic right ventricular dysplasia 10.

What condition is associated with DSG2 p.Ala917= (c.2751G>C)?

DSG2 p.Ala917= (c.2751G>C) is associated with arrhythmogenic right ventricular dysplasia 10, arrhythmogenic right ventricular cardiomyopathy (ClinVar).

How common is DSG2 p.Ala917= (c.2751G>C) in the general population?

DSG2 p.Ala917= (c.2751G>C) is absent from gnomAD v4.1 (gnomAD).

DSG2 p.Ala917=

Q: How is Inherited isolated arrhythmogenic cardiomyopathy inherited?

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

c.2751G>C · rs763063602 · VCV3073364

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

arrhythmogenic right ventricular dysplasia 10

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -0.12	phastCons 0.001
Overall
CADD	3.386	PHRED · no single calibrated threshold — expert panels disagree

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: DSG2
Protein: p.Ala917=
Coding: c.2751G>C
MANE Select: NM_001943
dbSNP: rs763063602
Type: single nucleotide variant
Location: chr18:31546137 (GRCh38)
Gene constraint: LOEUF 0.764 · pLI <0.01 · ClinGen HI 2/3 (gnomAD)
Structure: AlphaFold pLDDT 65.27 · 12 PDB
Residue 917: a UniProt-annotated variant site (in arvd10; uncertain significance; evidence of residual myocardium, fibrous tissue, fatty tissue, dysmetric and dysmorphic nuclei and prominent cytoplasmic vacuolization; decreases the number of desmosomes at intercalated disks also increases desmosome gap; smaller intercellular gaps, with repeating couplings, abnormally located desmosomes and pale internal plaques); a UniProt-annotated variant site (in arvd10; uncertain significance)

Full DSG2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

arrhythmogenic right ventricular dysplasia 10 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: arrhythmogenic right ventricular cardiomyopathy

For Inherited isolated arrhythmogenic cardiomyopathy (Orphanet):

Inheritance: Autosomal dominant
Onset: No data available

Similar variants

DSG2 p.Ala917Val Likely benign ★★ same residue
DSG2 p.Ala917Glu Uncertain significance ★ ⚠ same residue
DSG2 p.Ala917Thr Uncertain significance ★ ⚠ same residue
DSG2 c.1423+1G>T Likely pathogenic ★★ same condition
DSG2 c.1424-1G>A Likely pathogenic ★★ same condition
DSG2 c.523+1G>T Pathogenic/Likely pathogenic ★★ same condition
DSG2 c.690+1G>A Pathogenic ★★ same condition
DSG2 c.81+1G>T 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/dsg2-p-ala917 (accessed [today's date]).

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