cmd.read_pdbstr("""\
""", "chainBC")
cmd.hide("all")
cmd.color('grey70', "chainBC")
cmd.show('ribbon', "chainBC")
cmd.select("e4v7tBC2", "c. C & i. 125-271")
cmd.center("e4v7tBC2", state=0, origin=1)
cmd.zoom("e4v7tBC2", animate=-1)
cmd.show_as('cartoon', "e4v7tBC2")
cmd.spectrum('count', 'rainbow', "e4v7tBC2")
cmd.disable("e4v7tBC2")
cmd.show('spheres', 'c. A & i. 3022 | c. A & i. 3120 | c. A & i. 3131')
util.cbag('c. A & i. 3022 | c. A & i. 3120 | c. A & i. 3131')