Dear Jannick, If you mean an axis object defined with Axes/Planes/Centroids or the "define" command, yes, you can rotate about that axis with the command "turn" or "roll" -- both ChimeraX and Chimera have this capability. It is the axis argument, not the center. See the help page for Chimera "turn": <https://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/turn.html> Example commands: open 1zik define axis :.a turn a1 40 To set up a rotation around that axis with the mouse in Chimera, you'd need to look in the Reply Log when creating the axis (or use the Save button on Axes/Planes/Centroids to save to a text file) to get the axis information and then enter corresponding axis and origin coordinates into the Constrained Move tool. <https://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/constrained/constrained.html> I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco
On May 19, 2023, at 1:07 PM, Jannick Cornelius Snel-Prentø via Chimera-users <chimera-users@cgl.ucsf.edu> wrote:
Dear Chimera team,
I would like to rotate a protein chain with respect to an axis that I define, but I cannot seem to find any way to do that. I have defined the axis, but the turn command will not allow me to use this as the center of rotation. I have also tried constrained motion, but this does not seem to have the parameters needed to do this. Is there a command or a menu that permits rotating a chain or structure around an axis you define yourself?
Kr, Jannick _______________________________________________ Chimera-users mailing list: Chimera-users@cgl.ucsf.edu Manage subscription: https://www.rbvi.ucsf.edu/mailman/listinfo/chimera-users