UCSF ChimeraX is the next-generation visualization program from the Resource for Biocomputing, Visualization, and Informatics at UC San Francisco.
See also: Common Platform Issues, System Requirements, Change Log, Download & Citation Counts
Compared to Chimera, ChimeraX has a more modern user interface, better graphics, and much faster handling of large structures. For more information, see:
ChimeraX has several completely new features compared to Chimera (see advantages), but not yet all of its commonly used capabilities. Some features are implemented as commands only, not (yet) as graphical interfaces. Missing features include charge assignment and parametrization of nonstandard residues (except in the ISOLDE plugin), dock prep, saving and restoring scenes, animation GUI, 2D label GUI, render by attribute GUI, “worms” to show residue attributes, trajectory analysis other than simple playback, calculating a multiple sequence alignment from a multiple structure superposition, and many others. Chimera capabilities grew significantly over several years, and likewise, ChimeraX will contain more of these important features as development proceeds.
Although similar in many aspects, ChimeraX is not backward compatible with Chimera and does not read Chimera session files. Chimera includes an export to ChimeraX feature that covers some but not all types of data.
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Generic Linux Notes
The Generic Linux version does not run on Red Hat/CentOS 7; for those, you need to install the CentOS 7 rpm. The Generic Linux version of ChimeraX is compiled on Debian 8 using gcc 4.9. In past, it has worked on newer versions of Ubuntu (≥ 16.04) and Fedora (≥ 25), but that is not regularly tested. Running the generic version will probably require additional libraries and/or older versions of libraries to be installed.
ChemOffice 2002 supplies an ancient version of the OpenGL library that prevents ChimeraX from starting up. To fix it, you'll need to remove or rename its
typically found in
"C:\Program Files (x86)\ChemOffice2002\Common\DLLs\opengl32.dll".