FIG. 2.

Sequence comparisons of five papG allele I or I′ variants and corresponding predicted PapG peptides, identified as to strain name and allele. Alignments were by CLUSTAL-W (57). Positions in the gene, as numbered from the putative start codon, or in predicted mature peptides, as numbered from the putative amino-terminal residue (31), are shown above polymorphisms. Only positions at which at least one variant differs from strain J96 are included. Dashes indicate identity to J96; asterisks indicate a gap. In the peptide alignment, symbols below the polymorphism data signify the folowing: colon, highly similar amino acids; period, somewhat similar amino acids; blank, different amino acids. The single-letter amino acid code is used.