Figure 3

Domain structure of the Sps proteins grouped into their subfamilies. Proteins are from the organisms listed in Table 2 with the exception of B. anthracis strain A2012 and B. cereus ATCC 14579, which contain the same proteins as B. anthracis strain Ames and B. cereus ATCC 10987 (apart from BA0685 and BCE3743, respectively). Proteins from C. botulinum, whose genome is not yet annotated, have been given the name of the subfamily to which they belong. YabE-like clostridial proteins that do not occupy the conserved chromosomal context represented in Figure 2 are indicated with an asterisk.