Figure 3: Crosslinking probes.
Comparison of acyl-AcpP with crosslinker-loaded crypto-AcpPs utilized in this study to trap and crystalize AcpP=FabF complexes. An acyl-ACP substrate is shown to demonstrate the chemical structure of the natural substrate. The two crosslinking pantetheinamide probes have an amide instead of a thioester linking their acyl substrates as well as either an α-bromo or chloroacrylamide warhead. The region that has been modified to facilitate stable crosslinkers is shown in red while the substrate mimetics are outlined in light green. (ONE COLUMN)