Is DSP p.Asp2155Gly (c.6464A>G) pathogenic?

DSP p.Asp2155Gly (c.6464A>G) is classified Conflicting classifications of pathogenicity in DSP (ClinVar, Conflicting submitters, 4 submitters; last evaluated 2024-07-03). AlphaMissense: ambiguous (0.3437); Ultra-rare (popmax 0.0143%, sas); Associated with arrhythmogenic cardiomyopathy with wooly hair and keratoderma.

What condition is associated with DSP p.Asp2155Gly (c.6464A>G)?

DSP p.Asp2155Gly (c.6464A>G) is associated with arrhythmogenic cardiomyopathy with wooly hair and keratoderma, cardiomyopathy, arrhythmogenic right ventricular dysplasia 8 (ClinVar).

How common is DSP p.Asp2155Gly (c.6464A>G) in the general population?

DSP p.Asp2155Gly (c.6464A>G) is ultra-rare (popmax 0.0143%, sas) (gnomAD).

How is Carvajal syndrome inherited?

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

What do computational predictors say about DSP p.Asp2155Gly (c.6464A>G)?

AlphaMissense predicts ambiguous (score 0.3437) — an in-silico prediction, not a clinical call.

DSP p.Asp2155Gly

c.6464A>G · rs752740718 · VCV1443008

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 4 submitters

AlphaMissense

ambiguous

0.3437 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0143%, sas)

Conditions

arrhythmogenic cardiomyopathy with wooly hair and keratoderma

Computational evidence

Protein change
AlphaMissense	0.3437	ambiguous
REVEL	0.907	moderately pathogenic-leaning
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 1.9, phastCons 1
Regional constraint	o/e 0.93	unconstrained · MANE · 12 kb · p 0.0024 · regional, not allelic
Overall
CADD	25.7	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 0.0143% South Asian · 13/91,066 alleles

Filtering AF 0.00844% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00661%

Overall 0.000929% 15/1,613,998 alleles · ultra-rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0143%	7,005
East Asian	0.00223%	44,888
Remaining individualsnot grpmax-eligible	0.0016%	62,490

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.Asp2155Gly
Coding: c.6464A>G
MANE Select: NM_004415
dbSNP: rs752740718
Type: single nucleotide variant
Location: chr6:7583726 (GRCh38)
Gene constraint: LOEUF 0.443 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 2155: 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); the 'binds to telomeres' region; the 'globular 2' region; the '4.5 x 38 aa tandem repeats (domain a)' 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 cardiomyopathy with wooly hair and keratoderma — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: cardiomyopathy arrhythmogenic right ventricular dysplasia 8

For Carvajal syndrome (Orphanet):

Inheritance: Autosomal dominant, Autosomal recessive
Onset: Childhood, Infancy, Neonatal

Similar variants

DSP p.Asp2155= Likely benign ★★ same residue
DSP p.Asp2155fs Likely pathogenic ★ 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

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-asp2155gly (accessed [today's date]).

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