[1] European Bioinformat Inst, EMBL, Computat Genom Grp, Cambridge Outstn, Cambridge CB10 1SD, England
[2] CEN SCK, Belgian Nucl Res Ctr, Microbiol Lab, B-2400 Mol, Belgium
[3] Natl Ctr Res & Technol, Inst Agrobiotechnol, GR-57001 Thessaloniki, Greece
[4] Ecole Normale Super Lyon, Phys Lab, F-69364 Lyon, France
[5] CSIC, Natl Biotechnol Ctr, CNB, Transcript Networks Grp, E-28049 Madrid, Spain
[6] Sanger Inst, Cambridge CB10 1SA, England
[7] Hosp Sick Children, Toronto, ON M5G 1X, Canada
[8] DOE Joint Genome Inst, Walnut Creek, CA 94598 USA