MAP3K20 p.Phe647=
c.1941C>T · VCV3626626
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0659%, sas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -0.48 | GERP -1.1, phastCons 0.024 |
| Overall | ||
| CADD | 7.144 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0659%
South Asian · 60/91,080 alleles
Filtering AF
0.0525%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0476%
Overall
0.00378%
61/1,614,110 alleles · ultra-rare
exomes 57/1,461,864 · genomes 4/152,246 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0659% | 1,518 |
| East Asian | 0.00223% | 44,880 |
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
- MAP3K20
- Protein
- p.Phe647=
- Coding
- c.1941C>T
- MANE Select
- NM_016653
- Type
- single nucleotide variant
- Location
- chr2:173266288 (GRCh38)
- Gene constraint
- LOEUF 0.569 · pLI 0.14 (gnomAD)
- Structure
- AlphaFold pLDDT 69.15 · 8 PDB
- Residue 647
- a UniProt-annotated variant site (in cnm6; decrease of protein abundance)
Similar variants
- MAP3K20 p.Arg250Trp Uncertain significance ★★ ⚠ same type
- MAP3K20 p.Arg293Lys Uncertain significance ★★ same type
- MAP3K20 p.Arg536Lys Uncertain significance ★★ ⚠ same type
- MAP3K20 p.Arg634Gly Uncertain significance ★★ ⚠ same type
- MAP3K20 p.Arg774Trp Uncertain significance ★★ ⚠ same type
- MAP3K20 p.Arg795His Uncertain significance ★★ ⚠ same type
- MAP3K20 p.Gln632Ter Uncertain significance ★★ same type
- MAP3K20 p.Glu405Gly 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/map3k20-p-phe647 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown