cmd.read_pdbstr("""\
""", "chainBR")
cmd.hide("all")
cmd.color('grey70', "chainBR")
cmd.show('ribbon', "chainBR")
cmd.select("e6i7vBR1", "c. R & i. 20-74")
cmd.center("e6i7vBR1", state=0, origin=1)
cmd.zoom("e6i7vBR1", animate=-1)
cmd.show_as('cartoon', "e6i7vBR1")
cmd.spectrum('count', 'rainbow', "e6i7vBR1")
cmd.disable("e6i7vBR1")