Dear pdb-l, We're excited to announce significant improvements to ligand data access and organisation within the PDBe FTP area. These updates aim to empower your research by simplifying data retrieval and providing deeper insights into protein-ligand interactions. Key Enhancements: * Comprehensive Ligand Interaction Data: Two new data files, Interacting_chains_with_ligand_functions.tsv and pdb_bound_molecules.tsv, enable large-scale analyses of ligand interactions across the entire PDB archive including functional categorisation such as drug-like, reactant-like or cofactor-like. * Streamlined FTP Directory Structure: The revamped FTP area features dedicated folders for Chemical Component Definitions (CCDs), Peptide-like Reference Definitions (PRDs), Covalently Linked Components (CLCs), and additional data files, facilitating intuitive data navigation. Benefits for You: * Perform large-scale ligand interaction analyses across the entire PDB using complete ligand representations. * Quick access to all the ligands bound to a specific protein or identifying all the proteins binding to a specific ligand * Gain deeper insights into protein function through ligand interaction and classification. * Easily access and navigate ligand data with clear file organisation and unique identifiers. We believe these improvements will enhance ligand data analysis through streamlined data access and additional functional insights. For more information, visit the PDBe news item at: https://www.ebi.ac.uk/pdbe/news/improved-access-ligand-data-and-annotations-pdbe-ftp Or visit the PDBe FTP area directly: https://ftp.ebi.ac.uk/pub/databases/msd/pdbechem_v2/ Should you have any questions or require further assistance, please don't hesitate to contact us. Sincerely, David Armstrong The PDBe Team -- David Armstrong Outreach and Training Lead PDBe European Bioinformatics Institute (EMBL-EBI) European Molecular Biology Laboratory Wellcome Trust Genome Campus Hinxton Cambridge CB10 1SD UK