>178d_A: DNA (5'-D(*CP*GP*CP*AP*AP*AP*TP*TP*(8OG)P*GP*CP*G)-3') CGCAAATTGGCG >178d_B: DNA (5'-D(*CP*GP*CP*AP*AP*AP*TP*TP*(8OG)P*GP*CP*G)-3') CGCAAATTGGCG