Cheryl D. Swayne

  • Citations Per Year
Learn More
The TonB system energizes transport of nutrients across the outer membrane of Escherichia coli using cytoplasmic membrane proton motive force (PMF) for energy. Integral cytoplasmic membrane proteins ExbB and ExbD appear to harvest PMF and transduce it to TonB. The carboxy terminus of TonB then physically interacts with outer membrane transporters to allow(More)
The TonB system of Gram-negative bacteria uses the proton motive force (PMF) of the cytoplasmic membrane to energize active transport of nutrients across the outer membrane. The single transmembrane domain (TMD) anchor of TonB, the energy transducer, is essential. Within that TMD, His20 is the only TMD residue that is unable to withstand alanine replacement(More)
Prajnaparamita Dhar,† Yanyan Cao,‡ Timothy Kline,‡ Priya Pal,† Cheryl Swayne,† Thomas M. Fischer,*,† Brian Miller,† Thomas E. Mallouk,‡ Ayusman Sen,‡ and Tom H. Johansen§ Department of Chemistry and Biochemistry, The Florida State UniVersity, Tallahassee Florida 32306 4390, Department of Chemistry, The PennsylVania State UniVersity, UniVersity Park,(More)
Overdamped magnetic nanorod-gyroscopes driven by a rotating magnetic field undergo a series of reorientations when sedimenting on top of a surface in a viscous liquid. By changing the amplitude and the rotation frequency of the driving magnetic field, the nanorod-gyroscope either synchronizes or desynchronizes with the field and rotates either around its(More)
  • 1