Hi Fabian, An "rmsd" command to do that was added to ChimeraX approximately Sept 18, 2020 according to the change log: <https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog> So this feature is not in the 1.1 production release, which was before that time. You would need to get the newer daily build instead: <https://www.rbvi.ucsf.edu/chimerax/download.html#daily> I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco

On Apr 26, 2021, at 8:54 AM, Fabian Glaser <fglaser@technion.ac.il> wrote:

Dear all,

I want to perform rmsd calculation but without fitting to compare docking poses results.

In chimera I used rmsd, but in chimeraX no rmsd and no align works for me.

Can you please advice?

thanks!

Best,

Fabian

Fabian Glaser PhD

Bioinformatics Knowledge Unit - BKU The Lorry I. Lokey Center for Life Sciences and Engineering Technion - Israel Institute of Technology, Haifa, Israel Web https://lokey.technion.ac.il/bioinformatic-knowledge-unit/ Tel +972 (0) 4 8293701