cmd.read_pdbstr("""\
""", "chainB2")
cmd.hide("all")
cmd.color('grey70', "chainB2")
cmd.show('ribbon', "chainB2")
cmd.select("e4v9cB21", "c. 2 & i. 1-46")
cmd.center("e4v9cB21", state=0, origin=1)
cmd.zoom("e4v9cB21", animate=-1)
cmd.show_as('cartoon', "e4v9cB21")
cmd.spectrum('count', 'rainbow', "e4v9cB21")
cmd.disable("e4v9cB21")