ABCA3 p.Ile318=
c.954C>T · rs35161127 · VCV597906
Benign/Likely benign
Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 4 submitters
gnomAD v4.1
Rare
rare (popmax 0.559%, afr)
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 -0.98 | GERP -5.4 |
| Overall | ||
| CADD | 3.643 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.559%
African / African-American · 420/75,068 alleles
Filtering AF
0.515%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.498%
Overall
0.0295%
476/1,614,252 alleles · rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.559% | 179 |
| Remaining individualsnot grpmax-eligible | 0.0368% | 2,718 |
| Admixed American | 0.0233% | 4,288 |
| Middle Eastern | 0.0165% | 6,062 |
| European (non-Finnish) | 0.00153% | 65,558 |
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
- ABCA3
- Protein
- p.Ile318=
- Coding
- c.954C>T
- MANE Select
- NM_001089
- dbSNP
- rs35161127
- Type
- single nucleotide variant
- Location
- chr16:2317684 (GRCh38)
- Gene constraint
- LOEUF 0.612 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 81.00 · 2 PDB
- Residue 318
- an α-helix
Similar variants
- ABCA3 p.Ile318Phe Uncertain significance ★ ⚠ same residue
- ABCA3 p.Ile318Val Likely benign ★ same residue
- ABCA3 c.1112-20G>A Likely pathogenic ★★ same type
- ABCA3 c.2053-1G>C Likely pathogenic ★★ same type
- ABCA3 c.2414+1G>A Likely pathogenic ★★ same type
- ABCA3 c.3863-98C>T Pathogenic ★★ same type
- ABCA3 c.614-2A>G Likely pathogenic ★★ same type
- ABCA3 p.Ala1070Thr Likely pathogenic ★★ ⚠ 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/abca3-p-ile318 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown