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Relaxation simulations with partially unfolded helices G (gray) and F (red), respectively. (A) Forces (symbols) and biexponential fits (lines). The force fit for the first simulation starts after the retinal was extracted from the protein core. (B) Snapshots before (red) and after (cyan) the relaxation simulation with a partially unfolded helix G. (C) Similar, but for a partially unfolded helix F (same colors).
