Table 1.

MD studies of rate constants in pores

Parameter Gramicidin (Na+)a IRK1 (K+)b KcsA (Ba2+)c 
κRF 0.11 0.1 - 
κGH 0.1 0.1 0.25 
κKr 0.08 0.06 - 
ΔG* (kcal/mol) 4.5 - 15 
ωR/2π (s−1) 5.2 × 1012 - 4.1 × 1013 
kTST (s−1) 2.1 × 109 - 208 
α = κGHkTST (s−1) 2.1 × 108 - 52 
αexp (s−1) 4.0 × 108 - 204 

αexp, experimental rate constant; Kr, Kramers theory; RF, reactive flux method.

a

Roux and Karplus (1991).

b

White et al. (2000); Tolokh et al. (2002).

c

Rowley and Roux (2013).

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