Versions: 1FSX

THE X-RAY STRUCTURE DETERMINATION OF BOVINE CARBONMONOXY HB AT 2.1 A RESOLUTION AND ITS RELATIONSHIP TO THE QUATERNARY STRUCTURE OF OTHER HB CRYSTAL FORMS

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	2001-06-06	Initial release
1.1	2008-04-27		Version format compliance
1.2	2011-07-13		Version format compliance
1.3	2017-10-04		Refinement description	software
1.4	2024-02-07		Data collection, Database references, Derived calculations	chem_comp_atom, chem_comp_bond, database_2, pdbx_struct_conn_angle, struct_conn, struct_site
1.5	2026-08-12	Remediation / Metalloprotein remediation	Advisory, Derived calculations, Structure summary	pdbx_entry_details, pdbx_modification_feature, pdbx_nonpoly_atom_coordination, pdbx_nonpoly_atom_coordination_sphere, pdbx_nonpoly_atom_coordination_sphere_order, pdbx_struct_conn_angle, pdbx_validate_close_contact, struct_conn	Download

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

1FSX | pdb_00001fsx

THE X-RAY STRUCTURE DETERMINATION OF BOVINE CARBONMONOXY HB AT 2.1 A RESOLUTION AND ITS RELATIONSHIP TO THE QUATERNARY STRUCTURE OF OTHER HB CRYSTAL FORMS