Table 4.

Residues that shift E_m(P_A) and E_m(P_B) in the PSI protein environment (mV)

Residue	Em(PA) shift			Residue	Em(PB) shift
	Side chain	Backbone	Total		Side chain	Backbone	Total
Increasing Em(PA) and Em(PB)
Arg-A750	53	12	65	Arg-A651	60	−5	55
Arg-A651	42	−7	35	Arg-A750	30	5	36
Arg-A728	39	−4	35	Arg-A466	32	4	35
Arg-B627	36	−3	33	Arg-B712	36	−4	32
Arg-B712	34	−3	31	Arg-A728	35	−2	32