Is DYSF p.Ala429Val (c.1286C>T) pathogenic?

DYSF p.Ala429Val (c.1286C>T) is classified Uncertain significance in DYSF (ClinVar, Multiple submitters, 3 submitters; last evaluated 2022-11-09). AlphaMissense: likely benign (0.2931); Very rare (popmax 0.00133%, afr); Associated with neuromuscular disease caused by qualitative or quantitative defects of dysferlin.

How common is DYSF p.Ala429Val (c.1286C>T) in the general population?

DYSF p.Ala429Val (c.1286C>T) is very rare (popmax 0.00133%, afr) (gnomAD).

What do computational predictors say about DYSF p.Ala429Val (c.1286C>T)?

AlphaMissense predicts likely benign (score 0.2931) — an in-silico prediction, not a clinical call.

DYSF p.Ala429Val

Q: What condition is associated with DYSF p.Ala429Val (c.1286C>T)?

DYSF p.Ala429Val (c.1286C>T) is associated with neuromuscular disease caused by qualitative or quantitative defects of dysferlin, autosomal recessive limb-girdle muscular dystrophy type 2B (ClinVar).

c.1286C>T · rs925623903 · VCV847476

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

AlphaMissense

likely benign

0.2931 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00133%, afr)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

neuromuscular disease caused by qualitative or quantitative defects of dysferlin

Computational evidence

Protein change
AlphaMissense	0.2931	likely benign
REVEL	0.704	pathogenic-leaning
SaProt	LLR -6.91	tolerated
⇒ REVEL calls this damaging; AlphaMissense and SaProt do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.4	GERP 2.1, phastCons 1
Regional constraint	o/e 1.02	unconstrained · MANE · 85 kb · p 0.54 · regional, not allelic
Overall
CADD	24.9	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM A397V vs ClinVar A429V) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00133% African / African-American · 1/74,932 alleles

Overall 0.000657% 1/152,184 alleles · very rare

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: DYSF
Protein: p.Ala429Val
Coding: c.1286C>T
MANE Select: NM_001130987
dbSNP: rs925623903
Type: single nucleotide variant
Location: chr2:71528307 (GRCh38)
Gene constraint: LOEUF 0.836 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 79.25 · 11 PDB
Residue 429: a β-strand; the c2 3 domain

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

Disease context

neuromuscular disease caused by qualitative or quantitative defects of dysferlin — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: autosomal recessive limb-girdle muscular dystrophy type 2B

Similar variants

DYSF p.Ala429= Conflicting classifications of pathogenicity ★ same residue
DYSF c.1003-3C>A Pathogenic ★★★ same condition
DYSF c.1033+1G>A Pathogenic ★★★ same condition
DYSF c.1033+4A>T Likely pathogenic ★★★ same condition
DYSF c.1149+1G>A Pathogenic ★★★ same condition
DYSF c.1149+1G>C Pathogenic ★★★ same condition
DYSF c.1149+4A>G Pathogenic ★★★ same condition
DYSF c.1276+5G>A 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/dysf-p-ala429val (accessed [today's date]).

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