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DSP p.Ile679fs

c.2036_2039del · VCV4794761

Pathogenic Single submitter
Classification
Pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
frameshift
predicted LoF
gnomAD v4.1
Rare
very rare (popmax 8.47e-05%, nfe)
Conditions
2
arrhythmogenic right ventricular dysplasia 8

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequenceframeshiftpredicted loss-of-function in a haploinsufficient gene (ClinGen)
NMDpredictedpremature termination codon in exon 15 of 24
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP 4.8GERP 1.8, phastCons 1

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 8.47e-05% European (non-Finnish) · 1/1,180,020 alleles
Overall 0.000124% 2/1,614,112 alleles · very rare exomes 2/1,461,876 · genomes 0/152,236 · joint denominator
Ancestry group Frequency 1 in
Remaining individualsnot grpmax-eligible 0.0016% 62,508
European (non-Finnish)grpmax 8.47e-05% 1,180,020

Remaining individuals shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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.Ile679fs
Coding
c.2036_2039del
MANE Select
NM_004415
Type
Deletion
Location
chr6:7571971 (GRCh38)
Gene constraint
LOEUF 0.443 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 679
a UniProt-annotated variant site (in arvd8; uncertain significance); the 'globular 1' region; the 'interaction with mapre1' region; 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); 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: arrhythmogenic cardiomyopathy with wooly hair and keratoderma

For Inherited isolated arrhythmogenic cardiomyopathy (Orphanet):

Inheritance
Autosomal dominant
Onset
No data available

Similar variants

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-ile679fs (accessed [today's date]).

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