FIG. 1.
Genetic organization of region 2 of the capsule biosynthetic loci of representative isolates of the five P. multocida capsular serogroups (serogroups A, B, D, E, and F). The cap loci are shown from the following strains: P. multocida A:1 strain X-73 (GenBank accession number AF067175), B:2 strain M1404 (GenBank accession number AF169324), serogroup D strain P934 (GenBank accession number AF302465), serogroup E strain P1234 (GenBank accession number AF302466), and F:3 strain P4218 (GenBank accession number AF302467). Numbers above the boxes indicates the distance (in base pairs) between the last base of the preceeding gene and the first base of the next gene. Genes depicted by boxes above the line are transcribed in the left-to-right direction, while those beneath the line are transcribed in the right-to-left direction. †, percent identity at amino acid level to A:1 capsule biosynthetic locus; ‡, percent identity at amino acid level to B:2 capsule biosynthetic locus.