1. Laboratoire
de Biochimie (CNRS UMR7654), Department of Biology, Ecole Polytechnique, 91128 Palaiseau, France
2. A.E.
Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific
Centre, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russia
3. DYNAMO/DYNAMOP,
CEA/Grenoble/Bâtiment IBS2 (CEA, CNRS UMR5075, Université Joseph Fourier - Grenoble I), CAMPUS EPN, 6 rue Jules Horowitz, 38042 Grenoble, France