DYSF p.Pro2052Arg
c.6155C>G · rs886044643 · VCV291078
ClinGen expert panel — Limb Girdle Muscular Dystrophy VCEP
Likely Pathogenic for autosomal recessive limb-girdle muscular dystrophy. Applied ACMG criteria (verbatim):
PM3_Supporting PM2_Supporting PP4_Strong PP3
Curation rationale (ClinGen, verbatim)
The NM_003494.4: c.6038C>G variant in DYSF, which is also known as NM_001130987.2: c.6155C>G p.(Pro2052Arg), is a missense variant predicted to cause substitution of proline by arginine at amino acid 2013, p.(Pro2013Arg). This variant has been reported in unknown phase with a pathogenic variant in at least one individual with LGMD (NM_003494.4: c.3137G>A p.(Arg1064His), 0.5 pts, PMID: 36983702, 30564623; LOVD Individual #00221252) (PM3_Supporting). This individual displayed progressive limb girdle muscle weakness and disease range dysferlin expression by blood monocyte assay, which is highly specific for DYSF-related LGMD (PP4_Strong). This variant is absent from gnomAD v4.1.0 (PM2_Supporting). The computational predictor REVEL gives a score of 0.83, which is above the LGMD VCEP threshold of 0.70, evidence that correlates with impact to DYSF function. In addition, SpliceAI gives a score of 0.31 for donor gain. (PP3). In summary, this variant meets the criteria to be classified as Likely Pathogenic for autosomal recessive limb girdle muscular dystrophy based on the ACMG/AMP criteria applied, as specified by the ClinGen LGMD VCEP (LGMD VCEP specifications version 1.0.0; 06/10/2025): PM3_Supporting, PP4_Strong, PM2_Supporting, PP3.
ClinGen Evidence Repository → · reported verbatim, not re-tallied by Sugi Variant.
Computational evidence
| Protein change | ||
| AlphaMissense | 0.9309 | likely pathogenic ✓ concordant with ClinVar |
|---|---|---|
| REVEL | 0.834 | moderately pathogenic-leaning |
| SaProt | LLR -14.75 | damaging |
| ⇒ AlphaMissense, REVEL and SaProt all call this damaging. | ||
| Splicing | ||
| SpliceAI | Δ0.31 | donor gain, 1 bp away · masked 0 · deltas |
| Pangolin | Δ0.20 | gain · loss 0.05 · agrees with SpliceAI · independent |
| Constraint at this position | ||
| Conservation | phyloP 7.6 | GERP 2.1, phastCons 1 |
| Regional constraint | o/e 0.97 | unconstrained · MANE · 117 kb · p 0.28 · regional, not allelic |
| Overall | ||
| CADD | 27.8 | 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 P2013R vs ClinVar P2052R) — verify the residue.
Population frequency
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
- DYSF
- Protein
- p.Pro2052Arg
- Coding
- c.6155C>G
- MANE Select
- NM_001130987
- dbSNP
- rs886044643
- Type
- single nucleotide variant
- Location
- chr2:71681092 (GRCh38)
- Gene constraint
- LOEUF 0.836 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 79.25 · 11 PDB
Similar variants
- DYSF p.Pro2052Ala Uncertain significance ★ ⚠ same residue
- DYSF p.Pro2052Leu Uncertain significance ★ ⚠ same residue
- DYSF p.Pro2052= Likely benign ★ 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.1033+5G>A Likely pathogenic ★★★ same condition
- DYSF c.1149+1G>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-pro2052arg (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown