APPL1 c.474+3G>A
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00223%, eas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| Splice region | donor +3 | donor splice region (+3, within the first 6 intronic nt) · inside the BP7-excluded zone |
|---|---|---|
| SpliceAI | <0.2 | all four deltas below 0.2 · G>C here scores Δ0.47 · evaluated, not missing |
| Constraint at this position | ||
| Conservation | phyloP -0.76 | GERP -3.4 |
| Non-coding constraint | Z 0.12 | 1 kb window · o/e 0.99 · regional · uncalibrated |
| Overall | ||
| CADD | 1.358 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00223%
East Asian · 1/44,824 alleles
Overall
0.000124%
2/1,606,454 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.00223% | 44,824 |
| European (non-Finnish) | 8.52e-05% | 1,173,928 |
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
- APPL1
- Coding
- c.474+3G>A
- MANE Select
- NM_012096
- Type
- single nucleotide variant
- Location
- chr3:57242917 (GRCh38)
- Gene constraint
- LOEUF 0.524 · pLI 0.88 (gnomAD)
- Structure
- AlphaFold pLDDT 81.44 · 8 PDB
Similar variants
- APPL1 c.1658+6T>G Uncertain significance ★★ same type
- APPL1 p.Arg275Gln Uncertain significance ★★ ⚠ same type
- APPL1 p.Arg407Ser Uncertain significance ★★ ⚠ same type
- APPL1 p.Arg412Trp Uncertain significance ★★ ⚠ same type
- APPL1 p.Arg478Cys Uncertain significance ★★ ⚠ same type
- APPL1 p.Arg526His Uncertain significance ★★ ⚠ same type
- APPL1 p.Arg633His Uncertain significance ★★ ⚠ same type
- APPL1 p.Arg72Cys Uncertain significance ★★ ⚠ same type
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/appl1-c-474-plus-3g-a (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown