Secondary structure of the phosphocarrier protein III(Glc), a signal-transducing protein from Escherichia coli, determined by heteronuclear three-dimensional NMR spectroscopy - Pelton, J. G.; Torchia, Dennis A.; Meadow, Norman D.; Wong, Cing-Yuen; Roseman, Saul (Biological Magnetic Resonance Bank, 1995)