Figure 4.

Contributions to the dynamics of the headgroup segments. (A) Zoom on the headgroup τ_e (left panel) and R₁ (right). (B) “Cumulative” R₁(τ) of the γ (top panel), β (middle), and α (bottom) segments. R₁(τ) is obtained, as detailed in Methods, by including in the sum of eq 12 only terms with τ_i < τ. Consequently, at τ → ∞, the R₁(τ) approaches the actual R₁. (C) Prefactor weights α_i from eq 11 of γ (top), β (middle), and α (bottom). Note that panels (B) and (C) show a sliding average over three neighboring data points.