Extended Data Fig. 4: Contacts between PilA-N (orange) and PilA-C (cyan).
From: Structure of Geobacter pili reveals secretory rather than nanowire behaviour
a, Pilus model. b, PilA-C translucent, showing protrusions of PilA-N. c, Heterodimer showing C-terminal residues 57–61 of PilA-N protruding to the right into PilA-C. d, Flaps of PilA-C (thick coils) enclosing protrusion of PilA-N. Four glycines (red balls) could provide hinges that may enable flaps to open. Animations are presented in Supplementary Videos 1–3.
