Is DMD p.Asp2771Ala (c.8312A>C) pathogenic?

DMD p.Asp2771Ala (c.8312A>C) is classified Conflicting classifications of pathogenicity in DMD (ClinVar, Conflicting submitters, 5 submitters; last evaluated 2026-03-16). AlphaMissense: likely benign (0.2237); Ultra-rare (popmax 0.0384%, afr); Associated with Cardiovascular phenotype.

What condition is associated with DMD p.Asp2771Ala (c.8312A>C)?

DMD p.Asp2771Ala (c.8312A>C) is associated with Cardiovascular phenotype, Duchenne muscular dystrophy (ClinVar).

How common is DMD p.Asp2771Ala (c.8312A>C) in the general population?

DMD p.Asp2771Ala (c.8312A>C) is ultra-rare (popmax 0.0384%, afr) (gnomAD).

What do computational predictors say about DMD p.Asp2771Ala (c.8312A>C)?

AlphaMissense predicts likely benign (score 0.2237) — an in-silico prediction, not a clinical call.

DMD p.Asp2771Ala

c.8312A>C · rs376720228 · VCV635241

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 5 submitters

AlphaMissense

likely benign

0.2237 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0384%, afr)

Missense predictors

0/2 damaging

AlphaMissense, REVEL

Conditions

Cardiovascular phenotype

Computational evidence

Protein change
AlphaMissense	0.2237	likely benign
REVEL	0.213	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 7.9	GERP 1.6, phastCons 1
Regional constraint	o/e 1.36	unconstrained · MANE · 1,863 kb · p 2.4e-62 · regional, not allelic
Overall
CADD	22.4	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

Grpmax group 0.0384% African / African-American · 22/57,222 alleles

Filtering AF 0.026% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0219%

Overall 0.00231% 28/1,209,905 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0384%	2,601
Admixed American	0.00874%	11,436
Remaining individualsnot grpmax-eligible	0.0042%	23,795

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: DMD
Protein: p.Asp2771Ala
Coding: c.8312A>C
MANE Select: NM_004006
dbSNP: rs376720228
Type: single nucleotide variant
Location: chrX:31507359 (GRCh38)

Full DMD 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

Also linked: Duchenne muscular dystrophy

Similar variants

DMD p.Asp2771Tyr Uncertain significance ★ same residue
DMD p.Asp2771= Likely benign ★ same residue
DMD c.10086+1G>A Pathogenic ★★ same condition
DMD c.10086+1G>T Pathogenic ★★ same condition
DMD c.10086+2T>C Pathogenic ★★ same condition
DMD c.10087-2A>G Pathogenic/Likely pathogenic ★★ same condition
DMD c.10223+1G>A Pathogenic ★★ same condition
DMD c.10223+1G>C 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/dmd-p-asp2771ala (accessed [today's date]).

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