cmd.read_pdbstr("""\
""", "chainBC")
cmd.hide("all")
cmd.color('grey70', "chainBC")
cmd.show('ribbon', "chainBC")
cmd.select("e4u20BC1", "c. C & i. 2-125")
cmd.center("e4u20BC1", state=0, origin=1)
cmd.zoom("e4u20BC1", animate=-1)
cmd.show_as('cartoon', "e4u20BC1")
cmd.spectrum('count', 'rainbow', "e4u20BC1")
cmd.disable("e4u20BC1")