title: Lipoproteins of Enterococcus faecalis: bioinformatic identification, expression analysis and relation to virulence.
abstract: Enterococcus faecalis is a ubiquitous bacterium that is capable of surviving in a broad range of natural environments, including the human host, as either a natural commensal or an opportunistic pathogen involved in severe hospital-acquired infections. How such opportunistic pathogens cause fatal infections is largely unknown but it is likely that they are equipped with sophisticated systems to perceive external signals and interact with eukaryotic cells. Accordingly, being partially exposed at the cell exterior, some surface-associated proteins are involved in several steps of the infection process. Among them are lipoproteins, representing about 25 % of the surface-associated proteins, which could play a major role in bacterial virulence processes. This review focuses on the identification of 90 lipoprotein-encoding genes in the genome of the E. faecalis V583 clinical strain and their putative roles, and provides a transcriptional comparison of microarray data performed in environmental conditions including blood and urine. Taken together, these data suggest a potential involvement of lipoproteins in E. faecalis virulence, making them serious candidates for vaccine production.
authors: USC INRA 2017, Microbiologie de l'Environnement, EA 956, Université de Caen, France.
authors: Fany
authors: F
authors: Reffuveille
authors: Laboratoire de Microbiologie du Froid Signaux et Micro-Environnement (LMDF-SME), UPRES EA4312, Université de Rouen, France.
authors: Charlène
authors: C
authors: Leneveu
authors: Laboratoire de Microbiologie du Froid Signaux et Micro-Environnement (LMDF-SME), UPRES EA4312, Université de Rouen, France.
authors: Sylvie
authors: S
authors: Chevalier
authors: USC INRA 2017, Microbiologie de l'Environnement, EA 956, Université de Caen, France.
authors: Yanick
authors: Y
authors: Auffray
authors: USC INRA 2017, Microbiologie de l'Environnement, EA 956, Université de Caen, France.
authors: Alain
authors: A
authors: Rincé
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D019295:Computational Biology; D013293:Enterococcus faecalis / Q000235:genetics / Q000378:metabolism / Q000472:pathogenicity*; D015964:Gene Expression Regulation, Bacterial; D016680:Genome, Bacterial; D008074:Lipoproteins / Q000235:genetics / Q000378:metabolism*; D008565:Membrane Proteins / Q000235:genetics / Q000378:metabolism*; D020411:Oligonucleotide Array Sequence Analysis; D020543:Proteome / Q000032:analysis; D014774:Virulence
chemical_list: D001426:Bacterial Proteins; D008074:Lipoproteins; D008565:Membrane Proteins; D020543:Proteome