4EPR

Discovery of Small Molecules that Bind to K-Ras and Inhibit Sos-Mediated Activation.

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	2012-05-23	Initial release
1.1	2012-07-25		Database references
1.2	2018-01-24		Advisory, Structure summary	audit_author, pdbx_unobs_or_zero_occ_atoms
1.3	2024-02-28		Advisory, Data collection, Database references, Derived calculations	chem_comp_atom, chem_comp_bond, database_2, pdbx_struct_conn_angle, pdbx_unobs_or_zero_occ_atoms, struct_conn, struct_ref_seq_dif, struct_site	Download

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.