pbp loci and flanking regions of the PMEN1 reference, CGSP14 and PMEN3 reference genomes. Red blocks indicate identical nucleotide sequence with substitutions or single insertions marked by black lines. The relative positions of the pbp2x, pbp1a, and pbp2b loci are shown, as are the two loci (dexB and aliA) flanking the capsular (cps) locus.
Wyres et al. Genome Biology 2012 13:R103 doi:10.1186/gb-2012-13-11-r103