I am currently working on a protein structure and I would like to change the residue number of some solvent atoms (Zn ions).
My protein is a trimer and some Zn atoms present the same symmetry (that is, residue X of chain A,B,C are all connected to a Zn atom). For example, Zn atoms #1, #17 and #20 are liked to residues #537 in chain A,B and C.
I would like to rename those atoms #101, #102, #103 in the pdb file to make it more easy to read. All my Zn atoms are in a special chain Z.
I am working with Coot, but it only allows to shift the residue numbers by a given offset (useless in my case). When I try to modify manually those number (opening the pdb file using wordpad), coot does not like the new format and messes up with all the atom numbers.
Could anyone explain me how to manually change those number please? I think i might not be using the correct text editor.