In a cell free system , binding of a protein chimera composed of C terminal domain from __NODE__ 6 [__NODE__] protein and of central domain from __NODE__ 5 [__NODE__] protein and of N terminal domain from __NODE__ 6 [__NODE__] protein and __SP__ __NODE__ protein is greater than binding of a protein chimera composed of C terminal domain from __NODE__ 6 [__NODE__] protein and of central domain from __NODE__ 5 [__NODE__] protein and of N terminal domain from __NODE__ 6 [__NODE__] protein and __SP__ __NODE__ protein .