AMH p.Ala278=
c.834G>A · rs201779218 · VCV1601382
Benign/Likely benign
Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
low-frequency (popmax 2.25%, 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 -1.2 | GERP -2 |
| Overall | ||
| CADD | 7.971 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
2.25%
African / African-American · 1,633/72,504 alleles
Filtering AF
2.16%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 2.12%
Overall
0.127%
1,953/1,542,426 alleles · low-frequency
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 2.25% | 44 |
| Admixed American | 0.186% | 537 |
| Remaining individualsnot grpmax-eligible | 0.16% | 626 |
| Middle Eastern | 0.034% | 2,939 |
| European (non-Finnish) | 0.0106% | 9,438 |
| South Asian | 0.00119% | 84,174 |
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
- AMH
- Protein
- p.Ala278=
- Coding
- c.834G>A
- MANE Select
- NM_000479
- dbSNP
- rs201779218
- Type
- single nucleotide variant
- Location
- chr19:2251108 (GRCh38)
- Gene constraint
- LOEUF 1.954 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
- Structure
- AlphaFold pLDDT 69.40 · 3 PDB
- Residue 278
- the 'disordered' region
Similar variants
- AMH p.Arg40Ter Pathogenic/Likely pathogenic ★★ same type
- AMH p.Gln217Ter Pathogenic/Likely pathogenic ★★ same type
- AMH p.Glu389Ter Pathogenic/Likely pathogenic ★★ same type
- AMH p.Gly101Arg Likely pathogenic ★★ same type
- AMH p.Pro151Ser Pathogenic ★★ ⚠ same type
- AMH p.Trp371Ter Pathogenic ★★ same type
- AMH p.Tyr167Cys Pathogenic ★★ same type
- AMH p.Ala78Thr 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/amh-p-ala278 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown