cmd.read_pdbstr("""\
""", "chainb2")
cmd.hide("all")
cmd.color('grey70', "chainb2")
cmd.show('ribbon', "chainb2")
cmd.select("e6xzbb21", "c. 2 & i. 4-54")
cmd.center("e6xzbb21", state=0, origin=1)
cmd.zoom("e6xzbb21", animate=-1)
cmd.show_as('cartoon', "e6xzbb21")
cmd.spectrum('count', 'rainbow', "e6xzbb21")
cmd.disable("e6xzbb21")