cmd.read_pdbstr("""\
""", "chainXR")
cmd.hide("all")
cmd.color('grey70', "chainXR")
cmd.show('ribbon', "chainXR")
cmd.select("e4yzvXR1", "c. R & i. 18-88")
cmd.center("e4yzvXR1", state=0, origin=1)
cmd.zoom("e4yzvXR1", animate=-1)
cmd.show_as('cartoon', "e4yzvXR1")
cmd.spectrum('count', 'rainbow', "e4yzvXR1")
cmd.disable("e4yzvXR1")