Primer extension. (A) Primer extension of P
in pKAM12. The procedure has been explained in Methods. A, C, G, and T represent the dideoxynucleotide triphosphates used for the pKAM1 sequencing, and the + and - display the primer extension reaction of induced and uninduced sample, respectively. (B) Primer extension of P
in pKAM18 and DNA sequencing reaction.