517 



Leo P. Vernon, Waldo S. Zaugg and Elwood Shaw 



profound effect upon the electron transfer reaction. These experiments 

 were performed in organic solvents, but it is likely that in the qualitative 

 sense, these data can be translated to aqueous solvents with detergents 

 present. 



Contribution No. 131 from the Charles F, Kettering Research Laboratory. 

 The abbreviations used are as follows: NADP, nicotinamide adenine dinucleo- 

 tide phosphate; UQ2 and UQ2H2, ubiquinone with two isoprene units and its 

 reduced form; UQ^ and UQ6H2, ubiquinone with six isoprene units and its 

 reduced form; TMQ, trimethylbenzoquinone; PMS and PMSH2, phenazine 

 methosulfate and its reduced form. 



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