Fig. (1) Comparison of the genetic surrounding of the yheA, ylbF, ymcA and yaat genes identified in Staphylococcus aureus and Bacillus subtilis.The conserved genes are in black. The gene names are the same used in each bacterium. The putative Pribnow box and ribosome binding sequences (AAGGAGT) are represented for red pallets and the terminator Rho-independent transcription sequences predicted by TransTerm program are indicated for black loops.