Skip to main content
. 2005 Oct 28;90(3):1081–1089. doi: 10.1529/biophysj.105.069781

TABLE 3.

Rates kET of ET from A1 to FX in P700-FX core

Redox potential [mV]
1/kET [ns]
Em(A1) Em(FX)* Computation Experiment
A1A −545 −628 86 126**, 180–190††
−608§ 51
A1B
−652
−628 7 n.d.
−608§ 6 n.d.

The corresponding lifetime 1/kET was estimated from the rate expressions, Eqs. (1) and (2), based on the computed redox potentials Em(A1) and Em(FX).

*

Calculated by adding the calculated shift of the Em(FX) between the native PSI complex and P700-FX core (42 mV) to the measured Em(FX) in the native PSI complex.

Inline graphic lifetime calculated with reorganization energy λ = 1.0.

Based on the measured Em(FX) = −670 mV in the native PSI complex (3).

§

Based on the measured Em(FX) = −650 mV in the native PSI complex (43,44).

Estimated by Eq. 2.

Estimated by Eq. 1.

**

(5).

††

(9,10).