Is DSP p.His618Pro (c.1853A>C) pathogenic?

DSP p.His618Pro (c.1853A>C) is classified Likely pathogenic in DSP (ClinVar, Single submitter, 2 submitters; last evaluated 2023-05-27). AlphaMissense: likely pathogenic (0.9507); Absent from gnomAD v4.1; Associated with arrhythmogenic cardiomyopathy with wooly hair and keratoderma.

What condition is associated with DSP p.His618Pro (c.1853A>C)?

DSP p.His618Pro (c.1853A>C) is associated with arrhythmogenic cardiomyopathy with wooly hair and keratoderma, arrhythmogenic right ventricular dysplasia 8, cardiomyopathy, dilated, with wooly hair, keratoderma, and tooth agenesis (ClinVar).

How common is DSP p.His618Pro (c.1853A>C) in the general population?

DSP p.His618Pro (c.1853A>C) is absent from gnomAD v4.1 (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.His618Pro (c.1853A>C)?

AlphaMissense predicts likely pathogenic (score 0.9507) — an in-silico prediction, not a clinical call.

DSP p.His618Pro

c.1853A>C · rs1554107096 · VCV372126

Likely pathogenic Single submitter

Classification

Likely pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 2 submitters

AlphaMissense

likely pathogenic

0.9507 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

arrhythmogenic cardiomyopathy with wooly hair and keratoderma

Computational evidence

Protein change
AlphaMissense	0.9507	likely pathogenic ✓ concordant with ClinVar · top 10% in DSP
REVEL	0.618	indeterminate
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 2, phastCons 1
Regional constraint	o/e 0.62	unconstrained · MANE · 1,387 bp · p 1.5e-05 · regional, not allelic
Overall
CADD	26.4	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

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: DSP
Protein: p.His618Pro
Coding: c.1853A>C
MANE Select: NM_004415
dbSNP: rs1554107096
Type: single nucleotide variant
Location: chr6:7571534 (GRCh38)
Gene constraint: LOEUF 0.443 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 618: a UniProt-annotated variant site (in dcwhkta; leads to a significant reduction in gja1 localization to the plasma membrane); an α-helix; the 'globular 1' region; the 'interaction with mapre1' region; a UniProt-annotated variant site (in arvd8; uncertain significance); 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 cardiomyopathy with wooly hair and keratoderma — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: arrhythmogenic right ventricular dysplasia 8 cardiomyopathy, dilated, with wooly hair, keratoderma, and tooth agenesis

For Carvajal syndrome (Orphanet):

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

Similar variants

DSP p.His618Tyr Uncertain significance ★★ ⚠ 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-his618pro (accessed [today's date]).

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