1. Department of Cell Biology, Nencki Institute of Experimental Biology PAS, 02-093 Warsaw, Poland
2. Department of Biology and Rosenstiel Basic Medical Sciences Research Center, Brandeis University, Waltham, MA 02454
3. Department of Animal Physiology, Faculty of Biology, University of Warsaw, 02-096 Warsaw, Poland
4. Department of Biological Sciences, University at Buffalo, Buffalo, NY 14260
5. Department of Cellular Biology, University of Georgia, Athens, GA 30602