2X4S

Crystal structure of MHC CLass I HLA-A2.1 bound to a peptide representing the epitope of the H5N1 (Avian Flu) Nucleoprotein

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	2010-03-02	Initial release
1.1	2011-05-07		Version format compliance
1.2	2011-07-13		Version format compliance
1.3	2023-12-20		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_conn, struct_site	Download

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