cmd.read_pdbstr("""\ """, "chainBC") cmd.hide("all") cmd.color('grey70', "chainBC") cmd.show('ribbon', "chainBC") cmd.select("e4v90BC2", "c. C & i. 68-157") cmd.center("e4v90BC2", state=0, origin=1) cmd.zoom("e4v90BC2", animate=-1) cmd.show_as('cartoon', "e4v90BC2") cmd.spectrum('count', 'rainbow', "e4v90BC2") cmd.disable("e4v90BC2")