FIG. 3.

Alignment of the deduced amino acid sequences (in single-letter code) of central segments of the fimP and fimA type 2:1 and type 2:2 fimbrial subunit genes (see Fig. 1). Identical amino acids are indicated by gray shading, and those conserved in structure are indicated by a colon (:). Amino acids in boldface type are variable in fimbrial subunit sequences corresponding to the same binding specificity. The type 1 sequence data were collected from five isolates of genospecies 2 (strains B-10-K, B-1-K, P-1-K, P-3-K, and LY7), the type 2:1 sequence data are from six strains of genospecies 1 (strains P-3-N, P-5-N, Pn-1-GA, Pn-6-N, Pn-20-E, and Pn-22-E), and the type 2:2 sequence data are from a comparison of three strains of genospecies 2 (strains P-1-N, P-1-K, and LY7).