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Science 26 October 2001:
Vol. 294. no. 5543, pp. 849 - 852
DOI: 10.1126/science.1063447

Reports

Comparative Genomics of Listeria Species

P. Glaser,1 L. Frangeul,1 C. Buchrieser,1 C. Rusniok,1 A. Amend,4 F. Baquero,5 P. Berche,6 H. Bloecker,7 P. Brandt,7 T. Chakraborty,4 A. Charbit,6 F. Chetouani,1 E. Couvé,1 A. de Daruvar,8 P. Dehoux,2 E. Domann,4 G. Domínguez-Bernal,9 E. Duchaud,1 L. Durant,6 O. Dussurget,2 K.-D. Entian,10 H. Fsihi,2 F. Garcia-Del Portillo,11 P. Garrido,9 L. Gautier,8 W. Goebel,12 N. Gómez-López,11 T. Hain,4 J. Hauf,10 D. Jackson,8 L.-M. Jones,3 U. Kaerst,7 J. Kreft,12 M. Kuhn,12 F. Kunst,1 G. Kurapkat,8 E. Madueño,11 A. Maitournam,1 J. Mata Vicente,5 E. Ng,12 H. Nedjari,1 G. Nordsiek,7 S. Novella,9 B. de Pablos,11 J.-C. Pérez-Diaz,5 R. Purcell,1 B. Remmel,8 M. Rose,10 T. Schlueter,8 N. Simoes,1 A. Tierrez,9 J.-A. Vázquez-Boland,9 H. Voss,8 J. Wehland,7 P. Cossart2*

Listeria monocytogenes is a food-borne pathogen with a high mortality rate that has also emerged as a paradigm for intracellular parasitism. We present and compare the genome sequences of L. monocytogenes (2,944,528 base pairs) and a nonpathogenic species, L. innocua (3,011,209 base pairs). We found a large number of predicted genes encoding surface and secreted proteins, transporters, and transcriptional regulators, consistent with the ability of both species to adapt to diverse environments. The presence of 270 L. monocytogenes and 149 L. innocua strain-specific genes (clustered in 100 and 63 islets, respectively) suggests that virulence in Listeria results from multiple gene acquisition and deletion events.

1 Génomique des Microorganismes Pathogènes,
2 Unité des Interactions Bactéries-Cellules,
3 Service d'Informatique Scientifique, Institut Pasteur, 25-28 rue du Dr. Roux, 75724 Paris, France.
4 Institute for Medical Microbiology, Frankfurterstrasse 107, D-35392 Giessen, Germany.
5 Servicio de Microbiologia, Hospital Ramon y Cajal, 28034 Madrid, Spain.
6 Unité INSERM U411, Faculté de Médecine Necker-Enfants Malades, 156 rue de Vaugirard, 75730 Paris, France.
7 Department of Cell Biology and Immunology, Gesellschaft für Biotechnologische Forschung (GBF)-Braunschweig, D-38124 Braunschweig, Germany.
8 LION Bioscience AG, Im Neuenheimer Feld 517, D-69120 Heidelberg, Germany,
9 Grupo de Patogénesis Molecular Bacteriana, Departamento Patología Animal I, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain.
10 Scientific Research and Development GmbH, D-61440 Oberursel, Germany.
11 Centro de Biologia Molecular "Severo Ochoa," Universidad Autonoma de Madrid, 28049 Madrid, Spain.
12 TBI-Biozentrum, Lehrstuhl für Mikrobiologie, Universität Würzburg, D-97074 Würzburg, Germany.
*   To whom correspondence should be addressed. E-mail: pcossart{at}pasteur.fr


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Science. ISSN 0036-8075 (print), 1095-9203 (online)