MAP3K20 p.Cys273=
c.819T>C · rs771902043 · VCV1642022
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0373%, sas)
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 1.9 | GERP -0.92, phastCons 1 |
| Overall | ||
| CADD | 8.984 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0373%
South Asian · 34/91,088 alleles
Filtering AF
0.0274%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.024%
Overall
0.00483%
78/1,614,050 alleles · ultra-rare
exomes 74/1,461,848 · genomes 4/152,202 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0373% | 2,679 |
| Middle Eastern | 0.0329% | 3,042 |
| Admixed American | 0.0117% | 8,573 |
| Remaining individualsnot grpmax-eligible | 0.0032% | 31,243 |
| European (non-Finnish) | 0.00271% | 36,876 |
| Finnishnot grpmax-eligible | 0.00156% | 64,006 |
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.Cys273=
- Coding
- c.819T>C
- MANE Select
- NM_016653
- dbSNP
- rs771902043
- Type
- single nucleotide variant
- Location
- chr2:173209803 (GRCh38)
- Gene constraint
- LOEUF 0.569 · pLI 0.14 (gnomAD)
- Structure
- AlphaFold pLDDT 69.15 · 8 PDB
- Residue 273
- the protein kinase domain; a UniProt-annotated variant site (in cnm6; decrease of protein abundance); an α-helix
Similar variants
- MAP3K20 p.Cys273Arg Uncertain significance ★ ⚠ same residue
- 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
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-cys273 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown