Dear Sir or Madam, 

I did molecular docking to find the protein-ligand interactions using Chimera. Now I am trying to save the results of docking ( I took the screenshot here) in a text file and save the structure of protein-ligand in pdb file so I do the analysis using Pymol. 

When I click on file--> save pdb a page appears where I have to select which models to be saved. 

( I took the screenshot of the page here) but when I select ligand, protein and docked options all tigetehr, the program gives me error in saving the files. 

I appreciate if you help me and let me know how I can resolve it and save the protein-ligand structure in best binding site in pdb so I do further analysis on this. 

Best 

Maryam