Is DSG2 p.Ala355Val (c.1064C>T) pathogenic?

DSG2 p.Ala355Val (c.1064C>T) is classified Uncertain significance in DSG2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2023-10-23). AlphaMissense: likely benign (0.1454); Absent from gnomAD v4.1; Associated with Cardiovascular phenotype.

What condition is associated with DSG2 p.Ala355Val (c.1064C>T)?

DSG2 p.Ala355Val (c.1064C>T) is associated with Cardiovascular phenotype, arrhythmogenic right ventricular cardiomyopathy (ClinVar).

How common is DSG2 p.Ala355Val (c.1064C>T) in the general population?

DSG2 p.Ala355Val (c.1064C>T) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DSG2 p.Ala355Val (c.1064C>T)?

AlphaMissense predicts likely benign (score 0.1454) — an in-silico prediction, not a clinical call.

DSG2 p.Ala355Val

c.1064C>T · rs2510915280 · VCV2448374

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.1454 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Cardiovascular phenotype

Computational evidence

Protein change
AlphaMissense	0.1454	likely benign
REVEL	0.068	moderately benign-leaning
SaProt	LLR -7.07	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 4.8	GERP -0.13, phastCons 1
Regional constraint	o/e 0.93	unconstrained · MANE · 48 kb · p 0.014 · regional, not allelic
Overall
CADD	23.9	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: DSG2
Protein: p.Ala355Val
Coding: c.1064C>T
MANE Select: NM_001943
dbSNP: rs2510915280
Type: single nucleotide variant
Location: chr18:31531036 (GRCh38)
Gene constraint: LOEUF 0.764 · pLI <0.01 · ClinGen HI 2/3 (gnomAD)
Structure: AlphaFold pLDDT 65.27 · 12 PDB
Residue 355: a β-strand; the 'interacts with human adenovirus b3 fiber protein' region; the cadherin 3 domain

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

Disease context

Cardiovascular phenotype — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: arrhythmogenic right ventricular cardiomyopathy

Similar variants

DSG2 p.Ala355Thr Conflicting classifications of pathogenicity ★ ⚠ same residue
DSG2 p.Ala355Ser Uncertain significance ★★ ⚠ same residue
DSG2 p.Arg46Gln Pathogenic/Likely pathogenic ★★ same condition
DSG2 p.Arg46Trp Pathogenic/Likely pathogenic ★★ same condition
DSG2 p.Arg49His Pathogenic/Likely pathogenic ★★ same condition
DSG2 p.Asn266Ser Likely pathogenic ★★ same condition
DSG2 p.Gln873Ter Pathogenic/Likely pathogenic ★★ same condition
DSG2 p.Ser314Ter 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/dsg2-p-ala355val (accessed [today's date]).

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