Intramolecular 1H-13C distance measurement in uniformly 13C, 15N labeled peptides by solid-state NMR

► 1H-13C frequency-selective REDOR is employed to measure intramolecular 1H-13C distances within 5 Å in uniformly 13C, 15N-labeled samples. ► Theory and simulations show that the experiment retains the desired heteronuclear 1H-13C dipolar interaction. ► Intramolecular 1H-13C distances obtained from 1H-13C FS-REDOR are useful for determining dihedral angles in proteins.