Dear all, I have a question regarding the alignment tool of PyMOL. I would like to align the binding sites of two different proteins with each other and get the corresponding RMSD value. To do this, I selected the ligand and then picked the residues within 8 A away from the ligand of interest for both proteins, separately, using action>modify>around>residues within 8 A . Then, I tried to align these two selections using action>align>to selection. However, I got an error stating "ExecutiveAlign: mobile selection must derive from one object only." How can I handle this? I appreciate your feedback. Thanks in advance.
Kind regards
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