In a system of purified components , the affinity of binding of promoter fragment ( GACTTGACCATATCTTATTCCTCTTTGTTTTCCTAG ) containing a androgen response element 1 from __SP__ __NODE__ gene and a protein fragment containing a DNA binding domain from __SP__ __NODE__ protein is greater than the affinity of binding of promoter fragment ( TTGTAGTTGGGCACATAGTAGAGCTCA ) containing a androgen response element 2 from __SP__ __NODE__ gene and a protein fragment containing a DNA binding domain from __SP__ __NODE__ protein .