HRAS p.Phe28=
c.84T>C · rs915086641 · VCV518011
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00801%, afr)
Conditions
1
Costello syndrome
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 -0.2 | GERP -1.7, phastCons 0.01 |
| Overall | ||
| CADD | 4.069 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00801%
African / African-American · 6/74,914 alleles
Filtering AF
0.00347%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00229%
Overall
0.000372%
6/1,613,526 alleles · very rare
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
- HRAS
- Protein
- p.Phe28=
- Coding
- c.84T>C
- MANE Select
- NM_005343
- dbSNP
- rs915086641
- Type
- single nucleotide variant
- Location
- chr11:534239 (GRCh38)
- Gene constraint
- LOEUF 0.893 · pLI 0.02 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 92.50 · 256 PDB
- Residue 28
- a β-strand
Similar variants
- HRAS p.Ala59Thr Likely pathogenic ★★★ same condition
- HRAS p.Gly12Ser Pathogenic ★★★ same condition
- HRAS p.Gly13Cys Pathogenic ★★★ same condition
- HRAS p.Lys117Arg Pathogenic ★★★ same condition
- HRAS p.Thr58Ile Pathogenic ★★★ same condition
- HRAS p.Gly138Ser Uncertain significance ★★★ ⚠ same condition
- HRAS p.Ile93Val Uncertain significance ★★★ ⚠ same condition
- HRAS p.Lys170Ter 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/hras-p-phe28 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown