cmd.read_pdbstr("""\
""", "chainLn")
cmd.hide("all")
cmd.color('grey70', "chainLn")
cmd.show('ribbon', "chainLn")
cmd.select("e7oldLn1", "c. n & i. 1-25")
cmd.center("e7oldLn1", state=0, origin=1)
cmd.zoom("e7oldLn1", animate=-1)
cmd.show_as('cartoon', "e7oldLn1")
cmd.spectrum('count', 'rainbow', "e7oldLn1")
cmd.disable("e7oldLn1")