AUTHOR CORRECTION
Volume 195, no. 9, pages 2060–2071, 2013. Page 2066: Figure 4C should appear as shown below. An image containing the two rightmost lanes from Fig. 4B was inadvertently used to generate the top left panel in Fig. 4C (Intact T. denticola −/+ PK treatment immunoblotted with anti-Msp). In addition, the middle and bottom right panels (Disrupted T. denticola −/+ PK treatment immunoblotted with anti-TroA and anti-FlaA, respectively) were inadvertently switched in the composite figure. The corrected figure shows that, as stated in Results, Msp is largely inaccessible to proteinase K because it is not on the surface of the treponeme as opposed to being protease resistant.