cmd.read_pdbstr("""\
""", "chain2r")
cmd.hide("all")
cmd.color('grey70', "chain2r")
cmd.show('ribbon', "chain2r")
cmd.select("e4zer2r1", "c. r & i. 20-87")
cmd.center("e4zer2r1", state=0, origin=1)
cmd.zoom("e4zer2r1", animate=-1)
cmd.show_as('cartoon', "e4zer2r1")
cmd.spectrum('count', 'rainbow', "e4zer2r1")
cmd.disable("e4zer2r1")