ERRATUM
Volume 8, no. 5, e01238-17, 2017, https://doi.org/10.1128/mBio.01238-17. Some of the petrobactin component structures in Table 3 were corrupted during file conversion. We apologize for not detecting and correcting this error before publication. The corrected Table 3 is below.
TABLE 3 .
Structures and molecular weights of predicted petrobactin components present in individual asbA to -F knockout mutantsa

Nusca et al. (43).
