1IRL

THE SOLUTION STRUCTURE OF THE F42A MUTANT OF HUMAN INTERLEUKIN 2

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	1995-12-07	Initial release
1.1	2008-03-24		Version format compliance
1.2	2011-07-13		Version format compliance
1.3	2021-11-03		Database references, Derived calculations, Other	database_2, pdbx_database_status, pdbx_struct_assembly, pdbx_struct_oper_list, struct_ref_seq_dif
1.4	2024-10-23		Data collection, Structure summary	chem_comp_atom, chem_comp_bond, pdbx_entry_details, pdbx_modification_feature	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.