Hierarchical Contrastive Learning for Multi-Domain Protein-Ligand Binding
Researchers have developed HCLBind, a new self-supervised framework designed to improve the prediction of protein-ligand binding affinity, particularly for complex multi-domain proteins. This method decouples representation learning from affinity regression by employing a hierarchical decoy strategy that captures both local physicochemical constraints and global conformational geometry. By integrating a domain-gated graph attention network and cross-modal attention, HCLBind effectively prioritizes domain interfaces and demonstrates robust uncertainty estimation on the PDBBind dataset. AI
IMPACT Introduces a novel approach to protein-ligand binding prediction, potentially accelerating drug discovery and biological research.