Many bacteria can swim using their flagella, which are filamentous organelles that extend from the cell surface. The flagellar motor is energized by either a proton (H+) or sodium ion (Na+) as the motive force. MotAB-type stators use protons, whereas MotPS-and PomAB-type stators use Na+ as the coupling ions. Recently, alkaliphilic Bacillus alcalophilus was shown to use potassium ions (K+) and rubidium ions (Rb+) for flagellar rotation, and the flagellar motor from Paenibacillus sp. TCA-20 uses divalent cations such as magnesium ions (Mg2+), calcium ions (Ca2+), and strontium ions (Sr2+) for coupling. In this chapter, we focus on how to identify the coupling ions for flagellar rotation of alkaliphilic Bacillus and Paenibacillus species.
CITATION STYLE
Takahashi, Y., & Ito, M. (2017). Ion selectivity of the Flagellar motors derived from the Alkaliphilic Bacillus and Paenibacillus species. In Methods in Molecular Biology (Vol. 1593, pp. 297–303). Humana Press Inc. https://doi.org/10.1007/978-1-4939-6927-2_24
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