[1] CNRS, UPR 1261, Inst Biol Phys Chim, F-75005 Paris, France
[2] Univ London Imperial Coll Sci & Technol, Dept Biochem, London SW7 2AY, England
[3] EI Du Pont Nemours & Co, Expt Stn, CR & D, Wilmington, DE 19880 USA
[4] Univ Mediterranee, CEA Cadarache, DSV DEVM,CNRS CEA, Lab Bioenerget Cellulaire,UMR163,CEA1000, F-13108 St Paul Les Durance, France