Fig. 2.

Comparison of the isd loci of Staphylococcus aureus and Staphylococcus lugdunensis. A schematic diagram of the isd loci is shown. The open boxes denote individual genes and the arrows the direction of their transcription. Encoded NEAT motifs are shown as small black boxes. Orthologous genes are linked by thin black lines. The % identities between the encoded proteins are as follows: IsdB 36.8%, IsdC 57.6%, IsdE, 74.7%, IsdF 57.7%, SrtB 58.2%, IsdG 68.2%. Cell wall sorting signals are indicated. The isdH and isdI genes of S. aureus are located outside the locus as indicated by black circles.