Fig. 9.
PISEMA 1H–15N dipolar coupling/15N chemical shift correlation spectra calculated for a 20-residue α-helix with uniform dihedral angles of φ = −65, ψ = −40, at different helix tilts relative to the membrane normal, (a) 0°; (b) 15°; (c) 30°; (d) 45°; (e) 60°; (f) 75°; (g) 90°. Only one-half of each symmetric spectrum is shown.