FIG. 11.

Model of a divisome subassembly. Note that the structure unites the cytoplasm and periplasm. Although the association between individual pairs of some proteins has been demonstrated (see the text), the presumed multiple interactions have not yet been characterized. The gene products FtsA, FtsI (PBP3), FtsK, FtsL, FtsN, FtsQ, FtsW, and FtsZ have been denoted A, I, K, L, N, Q, W, and Z, respectively. Lyt. indicates that lytic enzymes must be present (see also Fig. 5); cm, cytoplasmic membrane.