Recently I was looking for a software that will give me a nice picture of secondary structure in a single line, that I can use to illustrate residues. I have found: Polyview-2D: http://polyview.cchmc.org/ That one was quick and what I finally got was: Not really that nice as I wanted. But I didn't have time to create that picture by myself, so then I tried: PDB Sum Click "generate" on the left if you want to upload your own pdb file. For results I had to wait, program runs every hour. That was what I got: And this is great! :-) You can also easily change colour and number of residue per line. Perfect.