This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Pugsley, A P Articles by Reeves, P Search for Related Content PubMed PubMed Citation Articles by Pugsley, A P Articles by Reeves, P

 Previous Article  |  Next Article 

J Bacteriol. 1976 July; 127(1): 218-228

Characterization of group B colicin-resistant mutants of Escherichia coli K-12: colicin resistance and the role of enterochelin.

ABSTRACT

Nine classes of group B colicin-resistant mutants were examined to study the role of enterochelin in colicin resistance. Four of the mutants studied (cbt, exbC, exbB, and tonB) hypersecreted enterochelin. Enterochelin hypersecretion was apparently responsible for resistance of the exbC mutant to colicins G and H and for resistance of the exbB mutant to colicins G, H, Ia, Ib, S1, and V. All four mutants scored as colicin B tolerant, even in the absence of enterochelin synthesis. The mutants produced substantially increased amounts of two high-molecular-weight outer membrane polypeptides when grown under limiting iron conditions. The presence of these polypeptides was correlated with increased colicin B-neutralizing activity in the outer membrane preparations.

This article has been cited by other articles:

• Patzer, S. I., Baquero, M. R., Bravo, D., Moreno, F., Hantke, K. (2003). The colicin G, H and X determinants encode microcins M and H47, which might utilize the catecholate siderophore receptors FepA, Cir, Fiu and IroN. Microbiology 149: 2557-2570 [Abstract] [Full Text]  
• Cao, Z., Warfel, P., Newton, S. M. C., Klebba, P. E. (2003). Spectroscopic Observations of Ferric Enterobactin Transport. J. Biol. Chem. 278: 1022-1028 [Abstract] [Full Text]  
• Etz, H., Minh, D. B., Schellack, C., Nagy, E., Meinke, A. (2001). Bacterial Phage Receptors, Versatile Tools for Display of Polypeptides on the Cell Surface. J. Bacteriol. 183: 6924-6935 [Abstract] [Full Text]  
• Henderson, D. P., Wyckoff, E. E., Rashidi, C. E., Verlei, H., Oldham, A. L. (2001). Characterization of the Plesiomonas shigelloides Genes Encoding the Heme Iron Utilization System. J. Bacteriol. 183: 2715-2723 [Abstract] [Full Text]  
• Moeck, G. S., Letellier, L. (2001). Characterization of In Vitro Interactions between a Truncated TonB Protein from Escherichia coli and the Outer Membrane Receptors FhuA and FepA. J. Bacteriol. 183: 2755-2764 [Abstract] [Full Text]  
• Sprencel, C., Cao, Z., Qi, Z., Scott, D. C., Montague, M. A., Ivanoff, N., Xu, J., Raymond, K. M., Newton, S. M. C., Klebba, P. E. (2000). Binding of Ferric Enterobactin by the Escherichia coli Periplasmic Protein FepB. J. Bacteriol. 182: 5359-5364 [Abstract] [Full Text]  
• Enard, C., Expert, D. (2000). Characterization of a tonB mutation in Erwinia chrysanthemi 3937: TonBEch is a member of the enterobacterial TonB family. Microbiology 146: 2051-2058 [Abstract] [Full Text]  
• Abdul-Tehrani, H., Hudson, A. J., Chang, Y.-S., Timms, A. R., Hawkins, C., Williams, J. M., Harrison, P. M., Guest, J. R., Andrews, S. C. (1999). Ferritin Mutants of Escherichia coli Are Iron Deficient and Growth Impaired, and fur Mutants are Iron Deficient. J. Bacteriol. 181: 1415-1428 [Abstract] [Full Text]  
• Thulasiraman, P., Newton, S. M. C., Xu, J., Raymond, K. N., Mai, C., Hall, A., Montague, M. A., Klebba, P. E. (1998). Selectivity of Ferric Enterobactin Binding and Cooperativity of Transport in Gram-Negative Bacteria. J. Bacteriol. 180: 6689-6696 [Abstract] [Full Text]  
• Payne, M. A., Igo, J. D., Cao, Z., Foster, S. B., Newton, S. M. C., Klebba, P. E. (1997). Biphasic Binding Kinetics between FepA and Its Ligands. J. Biol. Chem. 272: 21950-21955 [Abstract] [Full Text]  
• Newton, S. M. C., Allen, J. S., Cao, Z., Qi, Z., Jiang, X., Sprencel, C., Igo, J. D., Foster, S. B., Payne, M. A., Klebba, P. E. (1997). Double mutagenesis of a positive charge cluster in the ligand-binding site of the ferric enterobactin receptor, FepA. Proc. Natl. Acad. Sci. USA 94: 4560-4565 [Abstract] [Full Text]  
• Armstrong, S. K., McIntosh, M. A. (1995). Epitope Insertions Define Functional and Topological Features of the Escherichia coli Ferric Enterobactin Receptor. J. Biol. Chem. 270: 2483-2488 [Abstract] [Full Text]  
• Scott, D. C., Cao, Z., Qi, Z., Bauler, M., Igo, J. D., Newton, S. M. C., Klebba, P. E. (2001). Exchangeability of N Termini in the Ligand-gated Porins of Escherichia coli. J. Biol. Chem. 276: 13025-13033 [Abstract] [Full Text]