1. Ludwig Institute for Cancer Research; Courtauld Building, 91 Riding House Street London W1P 8BT UK
2. Institute of Molecular Biology and Genetics; 150 Zabolotnogo Str. 252143 Kiev Russia
3. School of Biology, University of St Andrews, Bute Medical Buildings, St Andrews; Fife KY16 9TS UK
4. Institute of Gene Biology, Russian Academy of Sciences; Vavilov Str. 34/6 B334 Moscow Russia
5. Division of Regulatory Cell Systems, H.V.Palladin Institute of Biochemistry; 14/16 Drahomanov St. 290005 Lviv Ukraine Russia