cmd.read_pdbstr("""\
""", "chainN2")
cmd.hide("all")
cmd.color('grey70', "chainN2")
cmd.show('ribbon', "chainN2")
cmd.select("e4u3nN21", "c. 2 & i. 9-108")
cmd.center("e4u3nN21", state=0, origin=1)
cmd.zoom("e4u3nN21", animate=-1)
cmd.show_as('cartoon', "e4u3nN21")
cmd.spectrum('count', 'rainbow', "e4u3nN21")
cmd.disable("e4u3nN21")