LARGE1 p.Ala611=
c.1833G>A · rs775318098 · VCV783088
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00833%, amr)
Conditions
1
muscular dystrophy-dystroglycanopathy type B6
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -14 | GERP -4 |
| Overall | ||
| CADD | 0.266 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00833%
Admixed American · 5/59,994 alleles
Filtering AF
0.00323%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00207%
Overall
0.00173%
28/1,614,054 alleles · very rare
exomes 26/1,461,888 · genomes 2/152,166 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.00833% | 11,999 |
| African / African-American | 0.004% | 24,975 |
| East Asian | 0.00223% | 44,890 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,488 |
| Finnishnot grpmax-eligible | 0.00156% | 64,040 |
| European (non-Finnish) | 0.00136% | 73,752 |
| South Asian | 0.0011% | 91,080 |
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
- LARGE1
- Protein
- p.Ala611=
- Coding
- c.1833G>A
- MANE Select
- NM_133642
- dbSNP
- rs775318098
- Type
- single nucleotide variant
- Location
- chr22:33283246 (GRCh38)
- Gene constraint
- LOEUF 0.606 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
- Structure
- AlphaFold pLDDT 86.15 · 4 PDB
- Residue 611
- the 'glucuronyltransferase activity' region; an α-helix
Similar variants
- LARGE1 p.Arg95Ter Pathogenic ★★ same condition
- LARGE1 p.Glu509Lys Pathogenic/Likely pathogenic ★★ same condition
- LARGE1 c.*155C>T Uncertain significance ★★ same condition
- LARGE1 p.Ala149Ser Uncertain significance ★★ ⚠ same condition
- LARGE1 p.Ala252Val Uncertain significance ★★ ⚠ same condition
- LARGE1 p.Ala478Thr Uncertain significance ★★ ⚠ same condition
- LARGE1 p.Ala635Thr Uncertain significance ★★ ⚠ same condition
- LARGE1 p.Ala752Gly Uncertain significance ★★ ⚠ 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/large1-p-ala611 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown