History
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| Version | Date | Type | |
| 1-0 | 1997-12-24 | Initial release | No files available. |
| 1-1 | 2008-03-24 | Version format compliance | No files available. |
| 1-2 | 2011-07-13 | Source and taxonomy, Version format compliance | No files available. |
| 1-3 | 2017-11-29 | Derived calculations, Other, Refinement description | |
| 2-0 | 2023-12-27 | Data collection, Database references, Derived calculations, Non-polymer description, Structure summary |
