1P2I

Structural consequences of accommodation of four non-cognate amino-acid residues in the S1 pocket of bovine trypsin and chymotrypsin


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 NumberVersion DateVersion Type/Reason Version ChangeRevised CIF Category
1.02004-04-20Initial release
1.12008-04-29Version format compliance
1.22011-07-13Version format compliance
1.32021-10-27Database references, Derived calculationsdatabase_2, pdbx_struct_conn_angle, struct_conn, struct_ref_seq_dif, struct_site
1.42023-08-16Data collection, Refinement descriptionchem_comp_atom, chem_comp_bond, pdbx_initial_refinement_model
1.52024-10-30Structure summarypdbx_entry_details, pdbx_modification_feature Download