1IA8

THE 1.7 A CRYSTAL STRUCTURE OF HUMAN CELL CYCLE CHECKPOINT KINASE CHK1

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	2001-04-18	Initial release
1.1	2008-04-27		Version format compliance
1.2	2011-07-13		Version format compliance
1.3	2018-01-31		Experimental preparation	exptl_crystal_grow
1.4	2024-02-07		Data collection, Database references, Derived calculations	chem_comp_atom, chem_comp_bond, database_2, struct_site
1.5	2024-04-03		Refinement description	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.