cmd.read_pdbstr("""\
""", "chainK")
cmd.hide("all")
cmd.color('grey70', "chainK")
cmd.show('ribbon', "chainK")
cmd.select("e7w3aK1", "c. K & i. 4-241")
cmd.center("e7w3aK1", state=0, origin=1)
cmd.zoom("e7w3aK1", animate=-1)
cmd.show_as('cartoon', "e7w3aK1")
cmd.spectrum('count', 'rainbow', "e7w3aK1")
cmd.disable("e7w3aK1")