1XX2

Refinement of P99 beta-lactamase from Enterobacter cloacae

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	2004-11-23	Initial release
1.1	2008-04-30		Version format compliance
1.2	2011-07-13		Version format compliance
1.3	2014-03-12		Database references
1.4	2017-10-11		Refinement description	software
1.5	2021-10-13		Database references	citation, citation_author, database_2
1.6	2023-08-23		Data collection, Refinement description	chem_comp_atom, chem_comp_bond, 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.