Indole prevents Escherichia coli cell division by modulating membrane potential.

Indole prevents Escherichia coli cell division by modulating membrane potential.
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DOI:
10.1016/j.bbamem.2012.02.022
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发表时间:
2012-07
影响因子:
3.4
通讯作者:
Summers, David K.
Summers, David K.
中科院分区:
生物学3区
文献类型:
--
作者:
Chimerel, Catalin;Field, Christopher M.;Pinero-Fernandez, Silvia;Keyser, Ulrich F.;Summers, David K.

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Indole is a bacterial signalling molecule that blocks E. coli cell division at concentrations of 3–5 mM. We have shown that indole is a proton ionophore and that this activity is key to the inhibition of division. By reducing the electrochemical potential across the cytoplasmic membrane of E. coli, indole deactivates MinCD oscillation and prevents formation of the FtsZ ring that is a prerequisite for division. This is the first example of a natural ionophore regulating a key biological process. Our findings have implications for our understanding of membrane biology, bacterial cell cycle control and potentially for the design of antibiotics that target the cell membrane. ► Indole induces charge transport across reconstituted lipid membranes. ► Indole reduces the E. coli membrane potential. ► Membrane potential is required for the formation of the macromolecular divisome. ► Indole blocks the formation of the macromolecular divisome. ► Indole reversibly blocks Escherichia coli cell division.
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