Is DSP p.Gln309Arg (c.926A>G) pathogenic?

DSP p.Gln309Arg (c.926A>G) is classified Uncertain significance in DSP (ClinVar, Single submitter, 1 submitter; last evaluated 2025-03-25). AlphaMissense: ambiguous (0.5277); Absent from gnomAD v4.1; Associated with Cardiovascular phenotype.

What condition is associated with DSP p.Gln309Arg (c.926A>G)?

DSP p.Gln309Arg (c.926A>G) is associated with Cardiovascular phenotype (ClinVar).

How common is DSP p.Gln309Arg (c.926A>G) in the general population?

DSP p.Gln309Arg (c.926A>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DSP p.Gln309Arg (c.926A>G)?

AlphaMissense predicts ambiguous (score 0.5277) — an in-silico prediction, not a clinical call.

DSP p.Gln309Arg

c.926A>G · VCV4015090

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.5277 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

Cardiovascular phenotype

Computational evidence

Protein change
AlphaMissense	0.5277	ambiguous
REVEL	0.466	indeterminate
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 2.2, phastCons 1
Regional constraint	o/e 0.94	unconstrained · MANE · 29 kb · p 0.14 · regional, not allelic
Overall
CADD	26.1	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.Gln309Arg
Coding: c.926A>G
MANE Select: NM_004415
Type: single nucleotide variant
Location: chr6:7565507 (GRCh38)
Gene constraint: LOEUF 0.443 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 309: an α-helix; the 'globular 1' region; the 'interaction with mapre1' region; the 'interaction with jup and pkp2' region; the 'interaction with pkp1' 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)

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.Gln309Ter Pathogenic ★★ same residue
DSP p.Gln309His 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
DSP p.Arg425Ter 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-gln309arg (accessed [today's date]).

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