Characterization of colicin S4 and its receptor, OmpW, a minor protein of the Escherichia coli outer membrane.
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Pilsl H, Smajs D, Braun V
Characterization of colicin S4 and its receptor, OmpW, a minor protein of the Escherichia coli outer membrane.
J Bacteriol. 1999 Jun;181(11):3578-81.
- PubMed ID
- 10348872 [ View in PubMed]
- Abstract
Analysis of the nucleotide sequence of an Escherichia coli colicin S4 determinant revealed 76% identity to the pore-forming domain of the colicin A protein, 77% identity to the colicin A immunity protein, and 82% identity to the colicin A lysis protein. The N-terminal region, which is responsible for the Tol-dependent uptake of colicin S4, has 94% identity to the N-terminal region of colicin K. By contrast, the predicted receptor binding domain shows no sequence similarities to other colicins. Mutants that lacked the OmpW protein were resistant to colicin S4.