Table 1.

Properties of electron transfer from pc and cyt c₆ to PSI from wild type and from 3bF transformants with an altered PsaF subunit

PSI	pc			cyt c6
	k2 × 107/M−1s−1	KD/μM*	f	k2 × 107/M−1s−1	KD/μM	f
Wild type	9.2	83	0.67	3.4	116	0.62
K12P	6.9	83	0.67	2.9	82	0.66
K16Q	1.61	241	0.41	1	303	0.5
K23Q	0.7	>500	0.21	0.46	>600	0.36
K30Q	3.4	154	0.48	1.8	210	0.52

^*K_D value for the transient complex allowing fast electron transfer (t_½ = 3–4 μs) to P700⁺.