6W63

Structure of COVID-19 main protease bound to potent broad-spectrum non-covalent inhibitor X77

Changes made to a PDB entry after its initial release are considered to be either “major” or “minor”. The latest minor version of each major version is available as a file download. More information about the PDB versioning is available.

Version Number	Version Date	Version Type/Reason	Version Change	Revised CIF Category
1.0	2020-03-25	Initial release
1.1	2020-05-06		Database references, Source and taxonomy, Structure summary	entity, entity_name_com, entity_src_gen, struct_ref, struct_ref_seq
1.2	2023-10-18		Data collection, Database references, Refinement description	chem_comp_atom, chem_comp_bond, database_2, pdbx_initial_refinement_model	Download

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.