Abstract: | The assignment of the 1H nuclear magnetic resonance spectrum of the basic pancreatic trypsin inhibitor with the use of two-dimensional 1H nuclear magnetic resonance techniques at 500 MHz is described. The assignments are based entirely on the known amino acid sequence and the nuclear magnetic resonance data. Individual resonance assignments were obtained for all backbone and Cβ protons, with the exception of those of Arg1, Pro2, Pro13 and the amide proton of Gly37. The side-chain resonance assignments are complete, with the exception of Pro2 and Pro13, the Nδ protons of Asn44 and the peripheral protons of the lysine residues and all but two of the arginine residues. |