A computational framework for optimizing antibody sequences for favorable developability has been introduced.
The framework includes a guided discrete diffusion model trained on natural paired heavy- and light-chain sequences from the Observed Antibody Space (OAS).
Integration of Soft Value-based Decoding in Diffusion (SVDD) Module helps bias sampling towards biophysically viable candidates without compromising naturalness.
The model shows significant enrichment in predicted developability scores over unguided baselines and enables the ML-driven pipeline for designing antibodies.