Nuclear magnetic resonance studies on conformation and stability of mastoparan in methanol

Mastoparan is a small peptide composed of 14 amino acid residues found in wasp venom. It penetrates into cytoplasm through the cell membranes and then binds to a G protein to stimulate the release of histamine. Conformation and its thermal stability of mastoparan from Vespula lewisi (MP) in methanol are investigated by using proton nuclear magnetic resonance (NMR) spectroscopy. On the basis of data on NOESY cross peaks, spin-spin coupling...