FIG. 2.

Polymorphic sites present in the genes analyzed. For each of the sequence types, the variant bases of the variant MLST loci compared to the sequence of the allele present in ST-11 are shown. The vertical numbers represent the base position within the MLST allele. For the porA genes, the entire sequence for VR1 and VR2 are given and their sequences are compared to the sequences defining serotype P1.5,2. The variant nucleotides of the five porB alleles compared with the sequence of porB2-2 are given, and the vertical numbers indicate the base position in an alignment of all known porB alleles. Allele porB2-39 was distinguished from allele porB2 by a four-codon deletion (data not shown) at base positions 604 to 615 inclusive. In all cases a base identical to that of the first sequence is shown with a period, a polymorphism is shown with the appropriate letter, and an alignment gap is shown with a hyphen.