Figure 3.

Comparison of SfIV with other serotype converting phages of S. flexneri. Protein corresponding to each orf was compared with its equivalent protein in SfI, SfII, SfV, Sf6 and SfX phages using ClustalW. The arrows below the SfIV map are colour coded and represent the amino acid sequence identity between the SfIV proteins and their equivalents in other phages. The colour codes are:- red: 90-100% identity, yellow: 80-89% identity, orange: 70-79% identity, green: 60-69% identity, blue: 50-59% identity and grey: 10-50% identity. The purple arrows in the SfIV map represent the unique proteins of phage SfIV.