In a cell free system , binding of a DNA fragment ( CTAGACCAAACTCTTCTGACCTCT ) from __SP__ __NODE__ gene and __SP__ __NODE__ protein and __SP__ __NODE__(s) is greater than binding of a DNA fragment ( CTAGACCAAACTCTTCTGACCCCC ) from __SP__ __NODE__ gene and __SP__ __NODE__ protein and __SP__ __NODE__(s) .