[PyMOL] How to avoid the protonation of a particular atom

Hello, I'm working with a receptor that has a catalytic Zn and i have to protonate everything except this atom. I have proved everything to avoid this protonation (put Zn2+ on the pdb, change the protonation with builder...etc) without success. Could you please tell me how to do this? I'm using

Re: [PyMOL] How to avoid the protonation of a particular atom

Hi, Protonate everyone, deprotonate that particular atom Cheers, João 2013/4/1 gdus...@cbm.uam.es Hello, I'm working with a receptor that has a catalytic Zn and i have to protonate everything except this atom. I have proved everything to avoid this protonation (put Zn2+ on the pdb,