LARGE1 p.Gln314=
c.942G>A · rs776701293 · VCV1616569
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00333%, 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 3.3 | GERP 1.7, phastCons 1 |
| Overall | ||
| CADD | 8.319 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00333%
Admixed American · 2/60,026 alleles
Filtering AF
0.000553%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000207%
Overall
0.000124%
2/1,614,206 alleles · very rare
exomes 2/1,461,854 · genomes 0/152,352 · joint denominator
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.Gln314=
- Coding
- c.942G>A
- MANE Select
- NM_133642
- dbSNP
- rs776701293
- Type
- single nucleotide variant
- Location
- chr22:33384255 (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 314
- an α-helix; the 'xylosyltransferase activity' region
Similar variants
- LARGE1 p.Gln314Glu Uncertain significance ★★ ⚠ same residue
- LARGE1 p.Gln314Leu Uncertain significance ★★ ⚠ same residue
- LARGE1 p.Gln314His Uncertain significance ★ ⚠ same residue
- 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
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-gln314 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown