[1] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy
[2] Univ Copenhagen, NNF Ctr Prot Res, DK-1168 Copenhagen, Denmark
[3] Swedish Univ Agr Sci, S-90183 Umea, Sweden
[4] Uppsala Univ, Uppsala, Sweden
[5] Canc Res Ctr, Bioinformat & Funct Genom Grp, Salamanca, Spain
[6] EMBL Heidelberg, Heidelberg, Germany
[7] Inst Gulbenkian Ciencias, Gulbenkian Training Programme Bioinformat, Oeiras, Portugal
[8] Radboud Univ Nijmegen, Med Ctr, NL-6525 ED Nijmegen, Netherlands
[9] Wellcome Trust Sanger Inst, HAVANA Team Working Vertebrate Genome Sequence An, Cambridge, England
[10] Univ Complutense Madrid, E-28040 Madrid, Spain
[11] Univ Manchester, Manchester M13 9PL, Lancs, England