Binding of a DNA fragment containing a __NODE__ response element from __SP__ __NODE__ gene(s) in nuclear extract from preadipocytes Ob17 cells and __SP__ c erbAbeta [__NODE__] protein in nuclear extract from preadipocytes Ob17 cells is greater than binding of a DNA fragment containing a __NODE__ response element from __SP__ __NODE__ gene(s) in a cell free system and c erbAbeta [__NODE__] protein in a cell free system .