Affiliation: | 1Biocenter of the Goethe University, Marie-Curie-Str. 9, D-60439 Frankfurt/M., Germany;2Ecole Normale Superieure de Lyon, UMR CNRS-INRA, 46 Allee D''Italie, F-69364 Lyon cedex 07, France;3Department of Microbiology & Cell Science, University of Florida, Gainesville, FL 32611-0700, USA |