Is DSC2 p.Arg183= (c.549G>C) pathogenic?

DSC2 p.Arg183= (c.549G>C) is classified Likely benign in DSC2 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-10-08). Absent from gnomAD v4.1; Associated with arrhythmogenic right ventricular dysplasia 11.

What condition is associated with DSC2 p.Arg183= (c.549G>C)?

DSC2 p.Arg183= (c.549G>C) is associated with arrhythmogenic right ventricular dysplasia 11 (ClinVar).

How common is DSC2 p.Arg183= (c.549G>C) in the general population?

DSC2 p.Arg183= (c.549G>C) is absent from gnomAD v4.1 (gnomAD).

DSC2 p.Arg183=

Q: How is Inherited isolated arrhythmogenic cardiomyopathy inherited?

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

c.549G>C · rs774025474 · VCV1583679

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

arrhythmogenic right ventricular dysplasia 11

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 -1.9	GERP -4
Overall
CADD	0.75	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: DSC2
Protein: p.Arg183=
Coding: c.549G>C
MANE Select: NM_024422
dbSNP: rs774025474
Type: single nucleotide variant
Location: chr18:31089520 (GRCh38)
Gene constraint: LOEUF 0.743 · pLI <0.01 · ClinGen HI 1/3 (gnomAD)
Structure: AlphaFold pLDDT 77.26 · 3 PDB
Residue 183: the cadherin 1 domain

Full DSC2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

arrhythmogenic right ventricular dysplasia 11 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Inherited isolated arrhythmogenic cardiomyopathy (Orphanet):

Inheritance: Autosomal dominant
Onset: No data available

Similar variants

DSC2 p.Arg183Gln Uncertain significance ★★ ⚠ same residue
DSC2 p.Arg183Trp Conflicting classifications of pathogenicity ★ ⚠ same residue
DSC2 c.1664-1G>A Likely pathogenic ★★ same condition
DSC2 c.354+2T>A Likely pathogenic ★★ same condition
DSC2 c.355-1G>A Likely pathogenic ★★ same condition
DSC2 p.Gln554Ter Pathogenic ★★ same condition
DSC2 p.Gln620Ter Pathogenic ★★ same condition
DSC2 p.Glu127Ter 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/dsc2-p-arg183 (accessed [today's date]).

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