Is DMD p.Ala171Pro (c.511G>C) pathogenic?

DMD p.Ala171Pro (c.511G>C) is classified Likely pathogenic in DMD (ClinVar, Single submitter, 1 submitter; last evaluated 2016-10-18). AlphaMissense: likely pathogenic (0.9911); Absent from gnomAD v4.1.

How common is DMD p.Ala171Pro (c.511G>C) in the general population?

DMD p.Ala171Pro (c.511G>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DMD p.Ala171Pro (c.511G>C)?

AlphaMissense predicts likely pathogenic (score 0.9911) — an in-silico prediction, not a clinical call.

DMD p.Ala171Pro

c.511G>C · rs755452188 · VCV381571

Likely pathogenic Single submitter

Classification

Likely pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9911 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

2/2 damaging

AlphaMissense, REVEL · SaProt no call

Computational evidence

Protein change
AlphaMissense	0.9911	likely pathogenic ✓ concordant with ClinVar · top 3% in DMD
REVEL	0.898	moderately pathogenic-leaning
SaProt	—	not scored · why
⇒ AlphaMissense and REVEL both call this damaging; SaProt makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.9	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	26.9	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL is an independent agreement signal.

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: DMD
Protein: p.Ala171Pro
Coding: c.511G>C
MANE Select: NM_004006
dbSNP: rs755452188
Type: single nucleotide variant
Location: chrX:32816487 (GRCh38)
Residue 171: an α-helix; the calponin-homology (ch) 2 domain; the 'actin-binding' region; a UniProt-annotated variant site (in bmd)

Full DMD gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

DMD p.Ala171= Likely benign ★ same residue
DMD c.10086+1G>A Pathogenic ★★ same type
DMD c.10086+1G>T Pathogenic ★★ same type
DMD c.10086+2T>C Pathogenic ★★ same type
DMD c.10087-2A>G Pathogenic/Likely pathogenic ★★ same type
DMD c.10223+1G>A Pathogenic ★★ same type
DMD c.10223+1G>C Pathogenic ★★ same type
DMD c.10224-2A>G Likely pathogenic ★★ same type

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-ala171pro (accessed [today's date]).

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