FIG 1.

Genomic organization of the sal(A) gene locus in Staphylococceae. Only three organizations were found by reciprocal BLAST analysis with the available full-length genomes of the Staphylococceae family. Investigated species were Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus haemolyticus, Staphylococcus saprophyticus, Staphylococcus carnosus, Staphylococcus pseudintermedius, Staphylococcus lugdunensis, and Macrococcus caseolyticus. (A) Gene order of S. sciuri where sal(A) is present and expressed; (B) gene order of S. saprophyticus where there is a disrupted ARE gene orthologous to sal(A); (C) gene order of all other genomes where sal(A) is absent. No residual traces of sal(A) gene sequences were detected in these genomes. nt, nucleotide.