Macromolecular CIF Dictionary

The macromolecular CIF dictionary (mmCIF) is a set of data names designed to describe a macromolecular crystallographic experiment and its results. It includes the complete set of data names available in the core CIF dictionary, but in the DDL2 formalism.

Current official release

• Macromolecular dictionary (RCSB site)
• HTML version

Version (2.0.09 of 27 June 2005) available on this disk

• ASCII file for software applications [ Unix | DOS/Windows | MacOS ]
• HTML version indexed by data items and categories
• PDF file of the printed chapter (4.5)

Archival versions

• Version 2.0.03 of 9 November 2000
• Version 1.0 of of 14 October 1997
  • Differences between versions 2.0 and 1.0

Work in progress

A comprehensive set of pages on the mmCIF dictionary project, including background and reference materials, software collections and developers' mailing lists, is maintained at

• mmCIF home page, Protein Data Bank, Rutgers University, USA
• mirrored on the IUCr web server