Figure 7From: Bacillus cereus Fnr binds a [4Fe-4S] cluster and forms a ternary complex with ResD and PlcRProposal for the Fnr-dependent regulation of the hbl and nhe enterotoxin genes in B. cereus. (A) apo- and holoFnr-dependent regulation in either the absence or presence of oxygen. (B), Fnr is thought to be part of a ternary complex involving ResD (black), PlcR (white), Fnr (gray), acting as positive regulator.Back to article page