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Protein Foundation Model

ProteoCraft

AF3-based hallucination with inference-time scaling for binder and TCR design

2026 Co-first author Submitted to NeurIPS 2026
ProteoCraft visual
ProteoCraft method overview
Method overview: gradient proposals suggest local sequence edits, while full forward AF3-like verification ranks discrete protein designs.
ProteoCraft application targets
Applications: cellular receptors, common allergens, multi-domain nucleases, TCR binders, and TCR CDR redesign.
ProteoCraft benchmark summary table
Benchmark summary: Rosetta filter pass rates across Type I de novo binder and TCR binder design tasks.
ProteoCraft detailed benchmark table
Detailed benchmark: target-level results for standard non-TCR binder targets and TCR-facing binder targets.

ProteoCraft is a protein foundation-model project for design under frozen diffusion-based structure predictors. It treats protein design as a proposal-verification search problem: truncated diffusion gradients are useful for proposing candidate mutations, but reliable values should come from complete forward prediction on discrete sequences.

The framework is built around a hard-forward / soft-backward sequence bridge, gradient-prior Monte Carlo Tree Search, and region-localized masked losses. This lets the system search over mutable protein regions while keeping the broader molecular context fixed, which is important for binder design, TCR-facing interfaces, and localized CDR or TCR redesign.

What It Enables

  • Protein sequence design with AF3-like diffusion structure predictors without training a new model.
  • Local mutation proposals from truncated diffusion gradients while preserving legal all-atom topology.
  • Full-forward verification of candidate sequences before ranking.
  • Search over de novo binders, immune-relevant TCR targets, and localized protein redesign tasks.
  • Region-aware losses that optimize designated mutable regions while respecting fixed structural context.

My Role

I am a co-first author on ProteoCraft and worked across the foundation-model formulation, proposal-verification search design, benchmark analysis, figure/story construction, and manuscript development.

Release

The manuscript has been submitted to NeurIPS 2026. Public links, code, and paper materials will be added here after release.