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. 2013 Jul 16;4(4):e00431-13. doi: 10.1128/mBio.00431-13

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Copyright © 2013 Sham et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-ShareAlike 3.0 Unported license, which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original author and source are credited.

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FIG 1 — Summary of PcsB, FtsX, and FtsE domains and amino acid changes described in this paper. (Top) PcsB. Locations of changes in PcsB^L78S-L219P(Ts) (red dots) and PcsB^A160P(Ts) (blue dot) in CC^PcsB and PcsB^W335G(Ts) and PcsB^Y387C(Ts) in CHAP^PcsB are indicated. Other structural features include the signal peptide, which is processed from the mature protein, the leucine zipper motifs in CC^PcsB, and the required active-site amino acids Cys292 and His343 in CHAP^PcsB (24). (Middle) FtsX. The predicted topology of FtsX is based on reference 19. Amino acid changes that suppress pcsB(Ts) mutations are color coded as indicated. The FtsX^I150K change is also indicated. (Bottom) FtsE. The K43Q mutation and the D164A and E165A mutations in the Walker A and B motifs, respectively, are indicated. See the text for additional details.