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. 2022 Mar 26;126(13):2538–2551. doi: 10.1021/acs.jpcb.2c00052

Table 2. Relaxation Rates and the Fractions of Their Anisotropic Parts g(Ri) = 1 – Ri,min/Ri,max Computed at Inline graphic MHza.

  R1 (1/s) R2 (1/s) g(R1) g(R2)
1st h.l. all 1.12 ± 0.02 1.07 ± 0.02 0.04 ± 0.01 0.022 ± 0.006
1st h.l., intra 0.63 ± 0.02 0.57 ± 0.01 0.10 ± 0.02 0.06 ± 0.01
1st h.l., inter 0.291 ± 0.002 0.287 ± 0.002 0.013 ± 0.003 0.007 ± 0.001
1st h.l., pept. H 0.206 ± 0.002 0.235 ± 0.003 0.124–0.005+0.006 0.062 ± 0.003
2nd h.l. all 0.463–0.006+0.005 0.451 ± 0.005 0.03 ± 0.01 0.013 ± 0.006
2nd h.l., intra 0.217 ± 0.004 0.211–0.003+0.004 0.03 ± 0.02 0.014 ± 0.009
2nd h.l., inter 0.224 ± 0.001 0.220 ± 0.001 0.018 ± 0.002 0.009 ± 0.001
2nd h.l., pept. H 0.0273–0.0003+0.0004 0.0257–0.0005+0.0007 0.06–0.02+0.01 0.030–0.009+0.007
water intra 0.1846 ± 0.0010 0.1836 ± 0.0008 0.005–0.003+0.004 0.003 ± 0.002
water inter 0.1304 ± 0.0003 0.1306 ± 0.0003 0.0013 ± 0.0006 0.0006 ± 0.0003
water, pept. H 0.00714 ± 0.00007 0.00763 ± 0.00009 0.063 ± 0.005 0.032 ± 0.002
bulk intra 0.176 ± 0.002 0.175 ± 0.002 0.007–0.008+0.013 0.003–0.004+0.006
bulk inter 0.1160 ± 0.0008 0.1161 ± 0.0008 0.001 ± 0.002 0.0004–0.001+0.0009
1st h.l., intra, restr. 1.73 2.40 0.28 0.14
1st h.l., inter, restr. 0.611 0.617 0.0096 0.0048
1st h.l., pept. H, restr. 0.637 1.95 0.67 0.34
a

For the peptide system, R1 and R2 were computed in the PAS of the inertia tensor (β = 0). For the bulk system, axes of the coordinate system were aligned along the vertices of the simulation box. The g(Ri) were computed from the minimum and maximum values of Ri with respect to the angle β between the long axis of the peptide and B0. The errors represent 95% confidence intervals computed with the bootstrap method. See section 4.1 for an explanation of the labels.