FIG 5.

Silent-copy repertoire of different strains. Pie charts represent the different pilS copies identified in the nonparental pilin variant sequences of different mutants. Each pilS copy is represented by a different color that corresponds to the diagram in Fig. 1A. On the right the silent copies are indicated by their position (e.g., 2c1 represents pilS 2 copy 1). variant, recombinant DNA donated from more than one unique silent copy; multiple events, copies with two or more identified pilS DNAs; 2c1/6c1, the common 2c1/6c1 variant that could have arisen from either pilS 2c1 or pilS 6c1.