Research Topics
Genomes and GenesSpecies
| G R CornelisSummaryCountry: Belgium Publications
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Publications
Yersinia lead SUMO attackG R Cornelis
Microbial Pathogenesis Unit, Christian de Duve Institute of Cellular Pathology and Faculty of Medicine, Universite de Louvain, 74 Av Hippocrate, B1200 Brussels, Belgium
Nat Med 7:21-3. 2001..Now it appears that Yops are the first bacterial member of a new family of ubiquitin-like proteases...
Assembly and function of type III secretory systemsG R Cornelis
Microbial Pathogenesis Unit, Christian de Duve Institute of Cellular Pathology and Faculté de Médecine, Universite Catholique de Louvain, B 1200 Brussels, Belgium
Annu Rev Microbiol 54:735-74. 2000..It is even more mysterious for plant cells where a thick wall has to be crossed. In spite of these haunting questions, type III secretion appears as a fascinating trans-kingdom communication device...
Molecular and cell biology aspects of plagueG R Cornelis
Microbial Pathogenesis Unit, Christian de Duve Institute of Cellular Pathology, and Faculté de Médecine, Universite Catholique de Louvain, Avenue Hippocrate, 74, UCL 74 49, B 1200 Brussels, Belgium
Proc Natl Acad Sci U S A 97:8778-83. 2000..YopP/YopJ plays an anti-inflammatory role by preventing the activation of the transcription factor NF-kappaB. It also induces rapid apoptosis of macrophages. Less is known about the role of the phosphoserine kinase YopO/YpkA and YopM...
Type III secretion: a bacterial device for close combat with cells of their eukaryotic hostG R Cornelis
Microbial Pathogenesis Unit, Christian de Duve Institute of Cellular Pathology ICP, Universite Catholique de Louvain, Brussels, Belgium
Philos Trans R Soc Lond B Biol Sci 355:681-93. 2000..One of the proteins injected by the enteropathogenic E. coli serves as a membrane receptor for the docking of the bacterium itself at the surface of the cell...
The virulence plasmid of Yersinia, an antihost genomeG R Cornelis
Microbial Pathogenesis Unit, Christian de Duve Institute of Cellular Pathology and Faculté de Médecine, Universite Catholique de Louvain, B 1200 Brussels, Belgium
Microbiol Mol Biol Rev 62:1315-52. 1998..enterocolitica and Y. pseudotuberculosis also encodes the adhesin YadA. The virulence plasmid contains some evolutionary remnants including, in Y. enterocolitica, an operon encoding resistance to arsenic compounds...
The Yersinia Yop virulon: a bacterial system for subverting eukaryotic cellsG R Cornelis
Microbial Pathogenesis Unit, Universite Catholique de Louvain, Brussels, Belgium
Mol Microbiol 23:861-7. 1997..The whole virulon is encoded by a 70 kb plasmid designated pYV. Transcription of the genes is controlled both by temperature and by contact with a eukaryotic cell...
The rpoS gene from Yersinia enterocolitica and its influence on expression of virulence factorsM Iriarte
Microbial Pathogenesis Unit, Faculte de Medecine, Universite Catholique de Louvain, Brussels, Belgium
Infect Immun 63:1840-7. 1995..An intact rpoS gene was necessary for full expression of yst in the stationary phase but not for the expression of myf and of pYV-encoded virulence determinants...
The fliA gene encoding sigma 28 in Yersinia enterocoliticaM Iriarte
Microbial Pathogenesis Unit, Universite Catholique de Louvain, Brussels, Belgium
J Bacteriol 177:2299-304. 1995..The fliA mutant allowed us to monitor the role of motility in pathogenesis. At least in the mouse model, motility seemed not to be required for Y. enterocolitica pathogenesis...
A new class of proteins regulating gene expression in enterobacteriaA V Mikulskis
Microbial Pathogenesis Unit, Universite Catholique de Louvain, UCL 54 90, Brussels, Belgium
Mol Microbiol 11:77-86. 1994..We suggest that both YmoA and Hha belong to a new family of proteins downregulating gene expression in different enterobacteria...
YscM1 and YscM2, two Yersinia enterocolitica proteins causing downregulation of yop transcriptionI Stainier
Microbial Pathogenesis Unit, International Institute of Cellular and Molecular Pathology ICP and Faculté de Médecine, Universite Catholique de Louvain, Brussels, Belgium
Mol Microbiol 26:833-43. 1997..We have also ruled out that YscM acts by obstructing the secretion channel...
VirG, a Yersinia enterocolitica lipoprotein involved in Ca2+ dependency, is related to exsB of Pseudomonas aeruginosaA Allaoui
Microbial Pathogenesis Unit, Universite Catholique de Louvain, Brussels, Belgium
J Bacteriol 177:4230-7. 1995..Interestingly, the exsA gene, located just downstream of exsB, is also homologous to virF...
Virulence and arsenic resistance in YersiniaeC Neyt
Microbial Pathogenesis Unit, International Institute of Cellular and Molecular Pathology, and Faculté de Médecine, Université Catholique deLouvain, Brussels, Belgium
J Bacteriol 179:612-9. 1997..enterocolitica strains. The presence of this ars operon also constitutes the first significant difference between the pYV plasmids from different Yersinia species...
Heparin interferes with translocation of Yop proteins into HeLa cells and binds to LcrG, a regulatory component of the Yersinia Yop apparatusA P Boyd
International Institute of Cellular and Molecular Pathology and Faculté de Médecine, Universite Catholique de Louvain, Brussels, Belgium
Mol Microbiol 27:425-36. 1998..This is the first report of a eukaryotic receptor interacting with the type III secretion and associated translocation machinery of Yersinia or of other bacteria...
Identification of SycN, YscX, and YscY, three new elements of the Yersinia yop virulonM Iriarte
Microbial Pathogenesis Unit, Christian de Duve Institute of Cellular Pathology and Faculté de Médecine, Universite Catholique de Louvain, B 1200 Brussels, Belgium
J Bacteriol 181:675-80. 1999..We identified three new elements of the Yop virulon: SycN, required for normal secretion of YopN, and YscX and YscY, two new components of the secretion machinery...
YopT, a new Yersinia Yop effector protein, affects the cytoskeleton of host cellsM Iriarte
Microbial Pathogenesis Unit, Christian de Duve Institute of Cellular Pathology, and Faculté de Médecine, Universite Catholique de Louvain, Brussels, Belgium
Mol Microbiol 29:915-29. 1998..This cytotoxic effect was caused by YopT and dependent on YopB. YopT is thus a new effector Yop and a new bacterial toxin affecting the cytoskeleton of eukaryotic cells...
YscN, the putative energizer of the Yersinia Yop secretion machineryS Woestyn
Microbial Pathogenesis Unit, Universite Catholique de Louvain, Brussels, Belgium
J Bacteriol 176:1561-9. 1994..We conclude that YscN is a component of the Yop secretion machinery using ATP. We hypothesize that it is either the energizer of this machinery or a part of it...
The pYV plasmid of Yersinia encodes a lipoprotein, YlpA, related to TraTB China
Unite de Microbiologie, Universite Catholique de Louvain, Brussels, Belgium
Mol Microbiol 4:1585-93. 1990..This co-regulation with the yop genes suggests that ylpA is a virulence determinant. However, mutations in ylpA clearly affect neither the resistance to human serum nor the virulence for intravenously inoculated mice...
YscU, a Yersinia enterocolitica inner membrane protein involved in Yop secretionA Allaoui
Microbial Pathogenesis Unit, Universite Catholique de Louvain, Brussels, Belgium
J Bacteriol 176:4534-42. 1994..YscU is related to Spa40 from Shigella flexneri, to SpaS from Salmonella typhimurium, to FlhB from Bacillus subtilis, and to HrpN from Pseudomonas solanacearum...
Secretion of hybrid proteins by the Yersinia Yop export systemT Michiels
, , Brussels, Belgium
J Bacteriol 173:1677-85. 1991..This observation opens new prospects in using Yersinia spp. as chimeric-protein producers and as potential live carriers for foreign antigens...
Yersinia enterocolitica YopP-induced apoptosis of macrophages involves the apoptotic signaling cascade upstream of bidG Denecker
Microbial Pathogenesis Unit, Christian de Duve Institute of Cellular Pathology, , Avenue Hippocrate 74, B-1200 Brussels, Belgium
J Biol Chem 276:19706-14. 2001..This finding supports the idea that YopP/J induces apoptosis by directly acting on cell death pathways, rather than being the mere consequence of gene induction inhibition in combination with microbial stimulation of the macrophage...
Fluorene degradation by Sphingomonas sp. LB126 proceeds through protocatechuic acid: a genetic analysisP Wattiau
Catholic University of Louvain UCL, Microbial Pathogenesis Unit, Brussels, Belgium
Res Microbiol 152:861-72. 2001....
The outer membrane component, YscC, of the Yop secretion machinery of Yersinia enterocolitica forms a ring-shaped multimeric complexM Koster
Microbial Pathogenesis Unit, International Institute of Cellular and Molecular Pathology and Faculté de Médecine, Universite Catholique de Louvain, Brussels, Belgium
Mol Microbiol 26:789-97. 1997..Because of the architecture of the multimer, YscC appears to represent a novel type of channel-forming proteins in the bacterial outer membrane...
ymoA, a Yersinia enterocolitica chromosomal gene modulating the expression of virulence functionsG R Cornelis
Microbiol Pathogenesis Unit, International Institute of Cellular and Molecular Pathology, Brussels, Belgium
Mol Microbiol 5:1023-34. 1991..This work supports recent reports which propose a role for DNA topology and bacterial chromatin structure in thermoregulation of virulence functions...
