FIG. 3.

Alignment of the sequenced products of the 429-bp fragment of the urease gene. The sequences of serotype standard strains 1, 3, 6, and 14 (biovar 1) are compared to the published sequence of serotype standard strain 1 (13) designated Urease 1. The sequences of serotype standard strains 2, 4, 5, 7, 8, 9, 10, 11, and 13 (biovar 2) are compared to the published sequence of serotype standard strain 8 (2) designated Urease 2. The sequences of the probes that are not useful are marked by underlines, and the sequences of the useful probes are marked by double underlines.