AUTHOR CORRECTION
Volume 195, no. 21, p. 4947–4953, 2013, https://doi.org/10.1128/JB.00937-13. Page 4949, Fig. 2A, right: We recently discovered that the amp panel is a duplicate of that in Fig. 3B. This was an error in final formatting and organizing of the figures for publication. The corrected panel should appear as shown below. We apologize for the inadvertent mistake and assure readers that the results of individual experiments and conclusions of the paper are not affected by the duplication.
