1QKO

HIGH RESOLUTION X-RAY STRUCTURE OF AN EARLY INTERMEDIATE IN THE BACTERIORHODOPSIN PHOTOCYCLE

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	1999-10-24	Initial release
1.1	2011-05-08		Version format compliance
1.2	2011-07-13		Version format compliance
1.3	2019-05-15		Data collection, Derived calculations, Experimental preparation, Other	exptl_crystal_grow, pdbx_database_proc, pdbx_database_status, struct_conn
1.4	2023-12-13		Data collection, Database references, Derived calculations, Other, Refinement description	chem_comp_atom, chem_comp_bond, database_2, pdbx_database_status, pdbx_initial_refinement_model, struct_site	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.