1. Department of Cellular Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, PL-02-093 Warszawa, Poland
2. institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia
3. Department of Biochemistry and Cell Biology, State University of New York at Stony Brook, Stony Brook, NY, U.S.A.