Figure 2. Similarities and differences between the 4 highly related prophages 5005.2, 370.3, MemPhiS, and 315.3. The figure, generated by the SEED comparison tools (22) (http://theseed.uchicago.edu), shows the physical maps of the 4 prophages near their attachment sites. Arrows with identical colors designate orthologous genes; those in gray designate alternative alleles of the genes. p, prx; mf, mitogenic factor; cadA, heavy metal/cadmium transporter ATPase; GAS, group A streptococci.