Schematic diagram produced by GeneSpring showing all the oligonucleotides representing the second agr locus against all the clinical strains. The gene context of region is detailed below the diagram but this is not to scale. Each row represents an isolate, and each column corresponds to a probe. Strain PCR-ribotypes are indicated on the right. The status of each probe is indicated by color as follows: red, present/conserved in the test strain; blue, absent in the test strain and yellow in this case were the region is absent in CD630 indicates divergence in these genes.