[1] LEIDEN UNIV, DEPT CELL BIOL GENET, NL-2300 RA LEIDEN, NETHERLANDS
[2] UNIV MILAN, DIPARTIMENTO GENET & BIOL MICROORGANISMI, I-20122 MILAN, ITALY
[3] LBMS, F-33000 BORDEAUX, FRANCE
[4] UNIV MILAN, DIPARTIMENTO FISIOL & BIOCHIM, I-20122 MILAN, ITALY
[5] INST MOLEC BIOL & BIOTECHNOL, GR-71110 IRAKLION, GREECE
[6] CTR UNIV ORSAY, INST CURIE, F-91405 ORSAY, FRANCE
[7] CTR BIOL MOLEC, E-28049 MADRID, SPAIN
[8] FAC SCI AGRON ETAT GEMBLOUX, B-5030 GEMBLOUX, BELGIUM
[9] DIPARTIMENTO CHIM BIOL, I-35100 PADUA, ITALY
[10] UNIV PARIS 11, INST GENET & MICROBIOL, F-91405 ORSAY, FRANCE
[11] UNIV ABERDEEN, DEPT MOLEC & CELL BIOL, ABERDEEN AB9 1FX, SCOTLAND
[12] CENS, SERV BIOCHIM, F-91191 GIF SUR YVETTE, FRANCE
[13] INST MICROBIOL, W-6100 DARMSTADT, GERMANY
[14] LAB MOLEC BIOL, B-9000 GHENT, BELGIUM
[15] KATHOLIEKE UNIV LEUVEN, GENTECHNOL LAB, B-3001 LOUVAIN, BELGIUM
[16] LA CRUZ DEL CAMPO SA, E-41080 SEVILLE, SPAIN
[17] CTR ENSEIGNEMENT & RECH IND ALIMENTAIRES & CHIM, COOVI, RES INST, B-1070 BRUSSELS, BELGIUM
[18] INST PASTEUR, F-75724 PARIS 15, FRANCE
[19] UNIV GIESSEN, INST MIKROBIOL & MOLEK BIOL, W-6300 GIESSEN, GERMANY
[20] UNIV MUNICH, INST PHYSIOL CHEM, W-8000 MUNICH 2, GERMANY
[21] UNIV ROME, DEPT CELL & DEV BIOL, I-00185 ROME, ITALY
[22] INST FOOD RES, NORWICH NR4 7UA, NORFOLK, ENGLAND
[23] CATHOLIC UNIV LOUVAIN, UNITE BIOCHIM PHYSIOL, B-1348 LOUVAIN, BELGIUM
[24] UNIV LIBRE BRUXELLES, CELL PHYSIOL & YEAST GENET LAB, B-1050 BRUSSELS, BELGIUM
[25] UNIV AMSTERDAM, MOLEC BIOL SECT, 1098 SM AMSTERDAM, NETHERLANDS
[26] MARTINSRIED INST PROT SEQUENCES, W-8033 MARTINSRIED, GERMANY
[27] ECOLE NORM SUPER, F-75231 PARIS 05, FRANCE
[28] CNRS, CTR GENET MOLEC, F-91190 GIF SUR YVETTE, FRANCE
[29] UNIV DUSSELDORF, INST MIKROBIOL, W-4000 DUSSELDORF 1, GERMANY
[30] KOBE UNIV, DEPT BIOL, KOBE 657, JAPAN
[31] UNIV DUBLIN TRINITY COLL, DEPT GENET, DUBLIN 2, IRELAND
[32] FREE UNIV AMSTERDAM, DEPT BIOCHEM & MOLEC BIOL, 1081 HV AMSTERDAM, NETHERLANDS
[33] UNIV MED & DENT NEW JERSEY, NEW JERSEY MED SCH, DEPT MICROBIOL & MOLEC GENET, NEWARK, NJ 07103 USA
[34] UNIV CONSTANCE, FAK BIOL, W-7750 CONSTANCE, GERMANY
[35] CARLSBERG LAB, DK-2500 COPENHAGEN, DENMARK
[36] COMMISS EUROPEAN COMMUNITIES, B-1049 BRUSSELS, BELGIUM