1H High-Resolution Magic Angle Spinning NMR Spectroscopy for the Investigation of a Ras Lipopeptide in a Lipid Membrane This work was supported by the Deutsche Forschungsgemeinschaft (SFB 197 and Innovationskolleg "Chemisches Signal und biologische Antwort"). D.H. is grateful for a BASF fellowship through the Studienstiftung des Deutschen Volkes. The authors thank Dr. A. Pampel for technical support with the DRX600.