Structural Insight into Archaic and Alternative Chaperone-Usher Pathways Reveals a Novel Mechanism of Pilus Biogenesis. - Pakharukova, Natalia; Garnett, James A.; Tuittila, Minna; Paavilainen, Sari; Diallo, Mamou; Xu, Yingqi; Matthews, Steve J.; Zavialov, Anton V. (PLoS Pathogens, 2015)