FIG. 7.

(A) Positive protein-protein interactions between B. subtilis cell division proteins DivIC, FtsL, DivIB, and PBP 2B detected by E. coli artificial septal targeting and bacterial two-hybrid assays. (B) Schema of the two stable subcomplexes identified in the present study. The two subcomplexes may be strongly bound in a complex only when another protein(s) X is present. Strong interactions between proteins are indicated by dark bars, while weaker interactions are indicated by light gray bars and arrows. Circular arrows reflect proposed homodimeric interactions.