Is DSP p.Arg64Lys (c.191G>A) pathogenic?

DSP p.Arg64Lys (c.191G>A) is classified Uncertain significance in DSP (ClinVar, Single submitter, 1 submitter; last evaluated 2026-06-06). AlphaMissense: likely benign (0.172); Absent from gnomAD v4.1; Associated with Cardiovascular phenotype.

What condition is associated with DSP p.Arg64Lys (c.191G>A)?

DSP p.Arg64Lys (c.191G>A) is associated with Cardiovascular phenotype (ClinVar).

How common is DSP p.Arg64Lys (c.191G>A) in the general population?

DSP p.Arg64Lys (c.191G>A) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DSP p.Arg64Lys (c.191G>A)?

AlphaMissense predicts likely benign (score 0.172) — an in-silico prediction, not a clinical call.

DSP p.Arg64Lys

c.191G>A · VCV4870140

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.172 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, REVEL

Conditions

Cardiovascular phenotype

Computational evidence

Protein change
AlphaMissense	0.172	likely benign
REVEL	0.241	benign-leaning
⇒ AlphaMissense and REVEL both call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 2.5, phastCons 1
Regional constraint	o/e 0.94	unconstrained · MANE · 29 kb · p 0.14 · regional, not allelic
Overall
CADD	21.8	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: DSP
Protein: p.Arg64Lys
Coding: c.191G>A
MANE Select: NM_004415
Type: single nucleotide variant
Location: chr6:7555738 (GRCh38)
Gene constraint: LOEUF 0.443 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 64: the 'globular 1' region; the 'interaction with mapre1' region; the 'interaction with jup and pkp2' region

Full DSP 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

Similar variants

DSP p.Arg64= Likely benign ★★ same residue
DSP p.Arg64fs Pathogenic ★ same residue
DSP p.Arg64Ser Uncertain significance ★ same residue
DSP c.778-2A>G Likely pathogenic ★★ same condition
DSP p.Arg1267Ter Pathogenic/Likely pathogenic ★★ same condition
DSP p.Arg160Ter Pathogenic/Likely pathogenic ★★ same condition
DSP p.Arg1738Ter Pathogenic ★★ same condition
DSP p.Arg270Ter 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-arg64lys (accessed [today's date]).

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