Hi Anindito, What do you mean by move a chain from position A to position B? Do you have two sets of atom coordinates for the same atoms, and you want to rotate the first set of coordinates about one atom position so that the sum of the squared distance between the other corresponding atoms is minimized? ChimeraX has nothing that does that. The matchmaker and align commands minimize the sum of the squared distances between corresponding atoms in two structures but don't allow you to keep one atom fixed. Tom
On Oct 5, 2026, at 8:08 PM, Sen, Anindito via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
Hi, What ChimeraX command can I use to rotate a PDB chain from position A to position B while keeping one end of the chain fixed at its original position?
Regards Anindito Sen. Ph.D Microscopy and Imaging Center Texas A&M University 301 Old Main Dr College Station, TX 77843-2257
Office: ILSB Room 1133 Tel. 979-458-9881 fax: 979-847-8933 http://microscopy.tamu.edu <http://microscopy.tamu.edu/>
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