For analysis, I want to have a PDB file of let's say with the first docked ligand in chimera which I did with autodock vina. I was able to save and open it in chimera. But the receptor and the ligand are both having the same name which I am using to save my PDB file. How can I change the names of receptor and ligand in the PDB file so that it is considered as different molecules in that particular PDB file. I want to give two different names to the receptor and the ligand in that particluar PDB file. This I need for my project.

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