Segger is a tool for the analysis of 3D density maps obtained using cryo-electron microscopy. It can be used to easily segment density maps into regions corresponding to molecular components such as proteins, and to quickly fit molecular structures into density maps.

Density maps are produced by methods such as single particle reconstruction (SPR) and tomography. For more on cryo-electron microscopy see EMDataBank.org.

Updates:

• June 11, 2010 - Segger web site moving to NCMI server - please follow THIS LINK for the latest version (1.6) and updated documentation.
• May 13, 2010 - Released version 1.5. Watershed segmentation is now a native Chimera function, and hence segmentation is even faster.
• March 14, 2010 - Segger is now a Sourceforge project. Follow this link to join the team, submit feature requests, post discussion messages, report bugs, etc.
• March 13, 2010 - Released version 1.4. Redesigned UI, again by Tom Goddard.
• Feb. 11, 2010 - Released version 1.3, with UI improvements by Tom Goddard.
• Jan. 17, 2010 - Presenting Segger at BCM Cryo-EM workshop.
• Jan. 17, 2010 - Segger is listed in the the EMDatabank.org software list , and the Chimera plugins page.
• Jan. 17, 2010 - Released version 1.2 with improved segmentation interface.
• Nov. 27, 2009 - Added Windows version.
• Nov. 24, 2009 - Released version 1.12. Updated the documentation pages.
• Oct. 6, 2009 - Added Linux version.