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  • Title: TI-205 nuclear magnetic resonance determination of the thermodynamic parameters for the binding of monovalent cations to gramicidins A and C.
    Author: Hinton JF, Fernandez JQ, Shungu DC, Whaley WL, Koeppe RE, Millett FS.
    Journal: Biophys J; 1988 Sep; 54(3):527-33. PubMed ID: 2462930.
    Abstract:
    Thermodynamic parameters for the binding of the monovalent cations, Li+, Na+, K+, Rb+, Cs+, NH4+, TI+, and Ag+, to gramicidin A and for the binding of TI+ to gramicidin C, incorporated into lysophosphatidylcholine, have been determined using a combination of TI-205 nuclear magnetic resonance spectroscopy and competition binding. The thermodynamic parameters, enthalpy and entropy, are discussed in terms of a process involving the transfer of cations from an aqueous to amide environment.
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