TP63 p.Arg643Gln
c.1928G>A · VCV4854136
Likely pathogenic
Single submitter
Classification
Likely pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely pathogenic
0.8828 · ACMG-weighted
gnomAD v4.1
Absent
absent from gnomAD v4.1
Missense predictors
2/3 damaging
AlphaMissense, REVEL, SaProt
Conditions
1
TP63-related disorder
Computational evidence
| Protein change | ||
| AlphaMissense | 0.8828 | likely pathogenic ✓ concordant with ClinVar |
|---|---|---|
| REVEL | 0.723 | pathogenic-leaning |
| SaProt | LLR -7.41 | tolerated |
| ⇒ AlphaMissense and REVEL call this damaging; SaProt does not. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 12 | GERP 2.8, phastCons 1 |
| Regional constraint | o/e 0.80 | unconstrained · MANE · 26 kb · p 4.9e-05 · regional, not allelic |
| Overall | ||
| CADD | 29.5 | PHRED · no single calibrated threshold — expert panels disagree |
AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.
Population frequency
gnomAD v4.1 · exomes + genomes
Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.
Variant & gene context
- Gene
- TP63
- Protein
- p.Arg643Gln
- Coding
- c.1928G>A
- MANE Select
- NM_003722
- Type
- single nucleotide variant
- Location
- chr3:189894387 (GRCh38)
- Gene constraint
- LOEUF 0.296 · pLI 1.00 · ClinGen HI 1/3 (gnomAD)
- Structure
- AlphaFold pLDDT 63.70 · 26 PDB
- Residue 643
- a UniProt-annotated variant site (in pof21; results in increased transcriptional activation in luciferase reporter assays; affects oligomerization); a UniProt-annotated variant site (in pof21); a UniProt-annotated variant site (in lms); the 'transactivation inhibition' region
Similar variants
- TP63 p.Arg643Ter Likely pathogenic ★ same residue
- TP63 p.Arg243Gln Pathogenic/Likely pathogenic ★★ same condition
- TP63 p.Arg243Trp Pathogenic ★★ same condition
- TP63 p.Arg266Gln Pathogenic/Likely pathogenic ★★ same condition
- TP63 p.Arg318Cys Pathogenic ★★ same condition
- TP63 p.Arg319Cys Pathogenic/Likely pathogenic ★★ same condition
- TP63 p.Arg319His Pathogenic ★★ same condition
- TP63 p.Arg337Gln Pathogenic/Likely pathogenic ★★ 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/tp63-p-arg643gln (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown