Is DYSF p.Pro1603= (c.4809A>C) pathogenic?

DYSF p.Pro1603= (c.4809A>C) is classified Uncertain significance in DYSF (ClinVar, Single submitter, 1 submitter; last evaluated 2021-05-21). Very rare (popmax 0.00267%, afr); Associated with neuromuscular disease caused by qualitative or quantitative defects of dysferlin.

How common is DYSF p.Pro1603= (c.4809A>C) in the general population?

DYSF p.Pro1603= (c.4809A>C) is very rare (popmax 0.00267%, afr) (gnomAD).

DYSF p.Pro1603=

Q: What condition is associated with DYSF p.Pro1603= (c.4809A>C)?

DYSF p.Pro1603= (c.4809A>C) is associated with neuromuscular disease caused by qualitative or quantitative defects of dysferlin (ClinVar).

c.4809A>C · rs1267487878 · VCV1951066

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00267%, afr)

Conditions

neuromuscular disease caused by qualitative or quantitative defects of dysferlin

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -2.1	GERP -2.4
Overall
CADD	5.238	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00267% African / African-American · 2/75,006 alleles

Filtering AF 0.000443% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000166%

Overall 0.000186% 3/1,614,048 alleles · very rare exomes 3/1,461,890 · genomes 0/152,158 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00267%	37,503
Remaining individualsnot grpmax-eligible	0.0016%	62,508

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.Pro1603=
Coding: c.4809A>C
MANE Select: NM_001130987
dbSNP: rs1267487878
Type: single nucleotide variant
Location: chr2:71658931 (GRCh38)
Gene constraint: LOEUF 0.836 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 79.25 · 11 PDB
Residue 1603: a β-strand; the c2 6 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

Similar variants

DYSF p.Pro1603Leu Uncertain significance ★ ⚠ 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+4A>G Pathogenic ★★★ same condition
DYSF c.1276+5G>A Pathogenic ★★★ same condition
DYSF c.1276+5G>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/dysf-p-pro1603 (accessed [today's date]).

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