A2ML1 p.Val554=
c.1662C>T · rs201231563 · VCV1777512
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00133%, 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 -1.5 | GERP -3.1 |
| Overall | ||
| CADD | 3.562 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00133%
African / African-American · 1/75,016 alleles
Filtering AF
6.8e-05%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 1.9e-05%
Overall
0.000342%
5/1,461,820 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.00133% | 75,016 |
| South Asian | 0.0011% | 91,072 |
| European (non-Finnish) | 0.000254% | 393,335 |
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
- A2ML1
- Protein
- p.Val554=
- Coding
- c.1662C>T
- MANE Select
- NM_144670
- dbSNP
- rs201231563
- Type
- single nucleotide variant
- Location
- chr12:8846201 (GRCh38)
- Gene constraint
- LOEUF 0.953 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 80.61 · 5 PDB
- Residue 554
- a disulfide bond; a UniProt-annotated variant site (risk factor for otitis media)
Similar variants
- A2ML1 c.1834-1G>T Uncertain significance ★★ same type
- A2ML1 c.3264+4C>T Uncertain significance ★★ same type
- A2ML1 c.3933+4A>G Uncertain significance ★★ same type
- A2ML1 c.409+1G>A Uncertain significance ★★ same type
- A2ML1 c.4221+2T>C Uncertain significance ★★ same type
- A2ML1 c.*1+1G>A Uncertain significance ★★ same type
- A2ML1 p.Ala1002Val Uncertain significance ★★ ⚠ same type
- A2ML1 p.Ala1039Val 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/a2ml1-p-val554 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown