Corrections of my previous email: According to wikipedia: "Although cadmium usually has an oxidation state of +2, it also exists in the +1 state." So there is probably no Cd(III) for us to worry about.
From: Lu Yu Sent: Monday, November 28, 2011 3:16 PM To: [email protected] Subject: [ccp4bb] how to add Cadmium ion to structure and do the refinement Hi ALL, This is the first structure I am working with. As the title said, I was stuck in the middle of model building using coot, and I found a big positive peak for Cadmium ion. The coot program doesn't *know* the cadmium ion when I add a Cd atom there (under the "place atom at pointer" menu--> "Other" ), and the refinement program doesn't *know* how to refine this (failed when I refine the whole structure, and it may need appropriate values as restraints, but I don't know how to add these values ). So I am wondering any one can give me any suggestion about, how to add cadmium ion in the position and do the refinement. Thanks in advance, Lu
