cmd.read_pdbstr("""\
""", "chainsB")
cmd.hide("all")
cmd.color('grey70', "chainsB")
cmd.show('ribbon', "chainsB")
cmd.select("e7zw0sB1", "c. B & i. 20-225")
cmd.center("e7zw0sB1", state=0, origin=1)
cmd.zoom("e7zw0sB1", animate=-1)
cmd.show_as('cartoon', "e7zw0sB1")
cmd.spectrum('count', 'rainbow', "e7zw0sB1")
cmd.disable("e7zw0sB1")
cmd.show('spheres', 'c. B & i. 301')
util.cbag('c. B & i. 301')