AUTHOR CORRECTION
Volume 186, no. 19, p. 6391–6399, 2004, https://doi.org/10.1128/JB.186.19.6391-6399.2004. Page 6395, Fig. 2: The third panel on the top row is a duplicate of the fourth panel on the bottom row. It appears that the same image was erroneously used twice when the figure was assembled. Unfortunately, the original images are now lost, although the strains (GJ4663 and GJ4652/pBR329, respectively) remain available in our collection. The figure error does not in any way alter the interpretations or conclusions drawn in the paper.