[1] U. de Biochimie Physiologique, Univ. Catholique de Louvain, B-1348 Louvain-la-Neuve
[2] Dipto. Genet. Biol. Microrganismi, Università di Milano, I-20133 Milano
[3] Martinsrieder Inst. F. Protein S., Max-Planck-Inst. für Biochemie, D-82152 Martinsried
[4] Institut für Biologie IV, Mikrobiologie, RWTH-Aachen, D-52056, Worringerweg
[5] Depto. de Microbiología II, Faculdad de Farmacia, Universidad Complutense
[6] Laboratorio de Genetica Molecular, Instituto Gulbenkian de Ciencia, E-2781 Oeiras Codex
[7] Microbiology Group, Intl. Ctr. Genetic Eng. and Biotech., I-34012 Trieste
[8] Biotech. Ctr. Anim. and Plant Hlth., Queens University of Belfast, Belfast BT9 5PX, Newforge Lane
[9] Genotype GmbH, D-69259 Wilhelmsfeld
[10] Dipartimento di Chimica Biologica, Università di Padova, I-35121 Padova
[11] Dipartimento di Biologia, Univ. di Roma 'Tor Vergata', I-00133 Roma, via della Ricerca Scientifica
[12] Depto. de Biol. Celular y Molecular, Facultad de Ciencias, Universidad de La Coruna, La Coruna
[13] Ctr. de Genet. Moléculaire, CNRS, Univ. Pierre et Marie Curie
[14] Katholieke Universiteit Leuven, Laboratory of Gene Technology, B-3001 Leuven
[15] Deutsches Krebsforschungszentrum, Department for Applied Virology
[16] U. de Genet. Molec. des Levures, Department of Biotechnologies, Institut Pasteur, F-75724 Paris Cedex 15
[17] Unité de Microbiologie, Fac. Univ. Sci. Agronom. de Gembloux, B-5030 Gembloux
[18] Inst. für Mikrobiologie, Johann Wolfgang Goethe-Univ. F., D-60439 Frankfurt
[19] Inst. Invest. Biomed. del C.S.I.C., Departamento de Bioquímica, Facultad de Medicina de la U.A.M
[20] Dipto. Biol. Cell. e dello Sviluppo, Univ. di Roma La Sapienza, I-00185 Roma
[21] Institut für Molekulare Genetik, Georg-August-Universität, D-37077 Göttingen
[22] Lab. Microbiologie Genet. URA 1481, Université Louis Pasteur/CNRS, Institut de Botanique, F-67083 Strasbourg Cedex
[23] Microsynth GmbH, CH-9436 Balgach
[24] Dept. Biochem. Appl. Molec. Biol., UMIST, Manchester M60 1QD, Sackville Street
[25] Institut de Biochimie Cellulaire, CNRS, F-33077 Bordeaux Cedex
[26] Yeast Genetics, Institute of Molecular Medicine, John Radcliffe Hospital
[27] Dipto. Biochim. e Fisiol. Generali, Università di Milano, I-20133 Milano
[28] Institute of Microbiology, Wroclaw University, P-51148 Wroclaw
[29] Genome Sequencing Center, Department of Genetics, Washington Univ. School of Medicine, St Louis
[30] Dipto. di Agrobiologia e Agrochimica, Università della Tuscia, I-01100 Viterbo, via S. Camillo de Lellis
[31] AGON GmbH, D-12489 Berlin
[32] Inst. for Molecular Plant Sciences, Leiden University, NL-2333 AL Leiden
[33] Dept. of Microbiology and Enzymology, Delft University of Technology, NL-2628 BC Delft
[34] MWG-BIOTECH GmbH, D-85560 Ebersberg
[35] Centro de Biotecnología, Camagüey
[36] Abteilung Klinische Biochemie, Zentrum Innere Medizin, Georg-August-Universität, D-37075 Göttingen