Figure 5. Working model of the BAM complex.
BamA and BamD constitute the core of the complex. BamA is proposed to recognize and help fold nascent OMPs with its five POTRA repeats (show as orange ovals). The N-terminal domain of BamD may assist in this folding role, or may recognize the consensus sequence at the C-terminus of OMPs. BamC and E interact with the C-terminal domain of BamD and help stabilize the complex. BamB interacts with BamA independently of BamC, D and E.