Sorry, I forgot to mention that, I have only C-alpha coordinates of 60 chains in one pdb file.
I have 60 identical chains. Each chain is about 140 residues.
Residues from 10-36 is helix and residues from 50-56 is beta sheet. I
want to prepare a cartoon diagram displaying helix and sheet in red and
yellow color respectively and the rest part(loop) in white. I need to do
this for all 60 chains in diagram. Can someone help me? what commands I
can use for this?