In a cell fraction from NIE 115 cells , the affinity of binding of a DNA fragment containing a __NODE__ binding site 2 from __SP__ __NODE__ gene and a protein fragment containing a DNA binding domain from __SP__ C __NODE__ [__NODE__] protein is greater than the affinity of binding of a DNA fragment containing a __NODE__ binding site 1 from __SP__ __NODE__ gene and a protein fragment containing a DNA binding domain from __SP__ C __NODE__ [__NODE__] protein .