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. 2019 Nov 1;7:742. doi: 10.3389/fchem.2019.00742

Figure 1.

Figure 1

Schematic representation of the P pili. The chaperones attached to the last subunit to be incorporated into each pilus are shown in yellow triangle. P pili are terminated at the outer membrane by the termination subunit, PapH. No such subunit is known in the Fim system. The pilicide bound to the chaperone-pilus subunit complex inhibit interaction with usher for further docking.