1. ARNA Laboratory, University of Bordeaux, F-33000 Bordeaux, France
2. INSERM U869, IECB, F-33600 Pessac, France
3. Department of Chemistry and Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
4. Maintenance des Génomes, Microscopies Moléculaires et Bionanosciences, UMR 8126 CNRS and University of Paris Sud, F-94805 Villejuif, France
5. Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan
6. CBMN, CNRS, University of Bordeaux, France