enFoldX classifies TCR–pMHC pairs from AF3 ensembles instead of one structure
quaidmorris · x · 2026-07-22
enFoldX classifies TCR:pMHC pairs from AF3 ensembles
The diagram shows the pipeline:
- Run AF3 on TCRα, TCRβ, MHC, and peptide inputs.
- Generate a structural ensemble rather than a single prediction.
- Extract interface and confidence features from the ensemble.
- Aggregate them with mean and standard deviation.
- Feed the features into a classifier to separate cognate from non-cognate pairs.
The thread argues that useful signal lives in how often AF3 hallucinates different structures, not just in the top-ranked model.
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