Is DSP p.Asn2423Ser (c.7268A>G) pathogenic?

DSP p.Asn2423Ser (c.7268A>G) is classified Uncertain significance in DSP (ClinVar, Multiple submitters, 3 submitters; last evaluated 2025-09-05). AlphaMissense: likely pathogenic (0.9898); Very rare (popmax 0.000508%, nfe); Associated with arrhythmogenic right ventricular dysplasia 8.

What condition is associated with DSP p.Asn2423Ser (c.7268A>G)?

DSP p.Asn2423Ser (c.7268A>G) is associated with arrhythmogenic right ventricular dysplasia 8, cardiomyopathy, arrhythmogenic cardiomyopathy with wooly hair and keratoderma (ClinVar).

How common is DSP p.Asn2423Ser (c.7268A>G) in the general population?

DSP p.Asn2423Ser (c.7268A>G) is very rare (popmax 0.000508%, nfe) (gnomAD).

What do computational predictors say about DSP p.Asn2423Ser (c.7268A>G)?

AlphaMissense predicts likely pathogenic (score 0.9898) — an in-silico prediction, not a clinical call.

DSP p.Asn2423Ser

Q: How is Inherited isolated arrhythmogenic cardiomyopathy inherited?

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

c.7268A>G · rs1464853079 · VCV2194791

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

AlphaMissense

likely pathogenic

0.9898 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000508%, nfe)

Conditions

arrhythmogenic right ventricular dysplasia 8

Computational evidence

Protein change
AlphaMissense	0.9898	likely pathogenic · top 4% in DSP
REVEL	0.401	indeterminate
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.4	GERP 1.9, phastCons 1
Regional constraint	o/e 0.74	unconstrained · MANE · 696 bp · p 9.7e-06 · regional, not allelic
Overall
CADD	24.5	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000508% European (non-Finnish) · 6/1,180,022 alleles

Filtering AF 0.000183% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00012%

Overall 0.00041% 6/1,461,862 alleles · very rare

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: DSP
Protein: p.Asn2423Ser
Coding: c.7268A>G
MANE Select: NM_004415
dbSNP: rs1464853079
Type: single nucleotide variant
Location: chr6:7584530 (GRCh38)
Gene constraint: LOEUF 0.443 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 2423: a UniProt-annotated variant site (in arvd8; uncertain significance); a UniProt-annotated variant site (in dcwhkta; uncertain significance); a UniProt-annotated variant site (in dcwhk; uncertain significance; abolishes expression in the myocardium); a UniProt-annotated variant site (in ebla; uncertain significance); a β-strand; the 'binds to telomeres' region; the 'globular 2' region; the '4.5 x 38 aa tandem repeats (domain b)' region; 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); a UniProt-annotated variant site (in arvd8)

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: cardiomyopathy arrhythmogenic cardiomyopathy with wooly hair and keratoderma

For Inherited isolated arrhythmogenic cardiomyopathy (Orphanet):

Inheritance: Autosomal dominant
Onset: No data available

Similar variants

DSP p.Asn2423= Likely benign ★★ 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
DSP c.2297+1G>A Likely pathogenic ★★ same condition
DSP c.2298-1G>C Likely pathogenic ★★ same condition
DSP c.2298-2A>C 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-asn2423ser (accessed [today's date]).

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