History
Please read more about PDB versioning on our help page.
| Version | Date | Type | |
| 1-0 | 1999-03-23 | Initial release | No files available. |
| 1-1 | 2008-03-03 | Version format compliance | No files available. |
| 1-2 | 2011-07-13 | Non-polymer description, Version format compliance | No files available. |
| 1-3 | 2023-08-02 | Database references, Derived calculations, Other, Refinement description |
