MAP2K2 p.Ile278=
c.834C>A · rs766540227 · VCV505321
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00169%, amr)
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 -0.075 | GERP -3.9, phastCons 0.58 |
| Overall | ||
| CADD | 3.509 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00169%
Admixed American · 1/59,110 alleles
Overall
6.22e-05%
1/1,607,220 alleles · very rare
exomes 1/1,454,860 · genomes 0/152,360 · joint denominator
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
- MAP2K2
- Protein
- p.Ile278=
- Coding
- c.834C>A
- MANE Select
- NM_030662
- dbSNP
- rs766540227
- Type
- single nucleotide variant
- Location
- chr19:4099286 (GRCh38)
- Gene constraint
- LOEUF 0.858 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 82.54 · 3 PDB
- Residue 278
- the protein kinase domain; an α-helix
Similar variants
- MAP2K2 p.Ile278Met Uncertain significance ★★ ⚠ same residue
- MAP2K2 p.Ile278Thr Uncertain significance ★ ⚠ same residue
- MAP2K2 p.Glu207Lys Likely pathogenic ★★★ same type
- MAP2K2 p.Phe57Cys Pathogenic ★★★ same type
- MAP2K2 p.Phe57Val Pathogenic ★★★ same type
- MAP2K2 p.Pro128Gln Pathogenic ★★★ same type
- MAP2K2 p.Tyr134Cys Likely pathogenic ★★★ same type
- MAP2K2 p.Tyr134His 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/map2k2-p-ile278 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown