Figure 28-1: (a) Mechanism of conversion of phage DNA into linear plasmid. cosL, cosR, single stranded cohesive ends; cosRL, cos site after annealing and ligation of cohesive ends; telRL, uncuted target site of protelomerase; telL and telR, left and right hairpin ends of the prophage created by protelomerase. (b) Sequences of telRL site and hairpin ends of the prophage. The central 22-bp ideal palindrome telO is underlined.