FIGURE 5.
Theoretical value of T1 as a function of τe (internal correlation time) in several values of τm (overall correlation time): (a) τm, 2 ns; (b) τm, 8 ns; (c) τm, 50 ns; (d) τm, 100 ns; and (e) τm, 500 ns. The simulations were done using the Lipari-Szabo model free formalism with a fixed value of order parameter (S2 = 0.7). Theoretical values of T2 are between 240 and 350 ms for a, 90 and 130 ms for b, 15 and 20 ms for c, 7.7 and 10.4 ms for d, and 2.7 and 3.5 ms for e. The experimental 15N linewidth of ∼30 Hz (obtained from Fig. 2) corresponds to τm = 100 ns.