2001
Maintenance of an unfolded polypeptide by a cognate chaperone in bacterial type III secretion
Stebbins C, Galán J. Maintenance of an unfolded polypeptide by a cognate chaperone in bacterial type III secretion. Nature 2001, 414: 77-81. PMID: 11689946, DOI: 10.1038/35102073.Peer-Reviewed Original ResearchConceptsEffector proteinsSecretion systemType III protein secretion systemBacterial type III secretionSpecific cytosolic chaperonesSuch effector proteinsType III secretion systemSecretion-competent stateVirulence effector proteinsProtein secretion systemChaperone-binding domainHost cell cytosolType III secretionType III apparatusCytosolic chaperonesUnfolded polypeptidesSecretion machineryCognate chaperoneÅ resolutionChaperonesCell cytosolChaperone moleculesEffective translocationBacterial pathogensHydrophobic interfaceStructural mimicry in bacterial virulence
Stebbins C, Galán J. Structural mimicry in bacterial virulence. Nature 2001, 412: 701-705. PMID: 11507631, DOI: 10.1038/35089000.Peer-Reviewed Original ResearchConceptsAmino acid sequence similarityConvergent evolutionCellular functionsSequence similarityDirect homologuesBacterial virulenceHost proteinsNew effectorsMicrobial pathogensFunctional mimicryStructural mimicryMolecular levelVirulence factorsMimicryStructural studiesHost factorsImportant mechanismHost activityHomologuesVirulenceEffectorsProteinPathogensSimilarity
2000
Modulation of Host Signaling by a Bacterial Mimic Structure of the Salmonella Effector SptP Bound to Rac1
Stebbins C, Galán J. Modulation of Host Signaling by a Bacterial Mimic Structure of the Salmonella Effector SptP Bound to Rac1. Molecular Cell 2000, 6: 1449-1460. PMID: 11163217, DOI: 10.1016/s1097-2765(00)00141-6.Peer-Reviewed Original ResearchMeSH KeywordsAluminum CompoundsAmino Acid SequenceAmino Acid SubstitutionBacterial ProteinsBinding SitesCdc42 GTP-Binding ProteinCrystallography, X-RayDimerizationEvolution, MolecularFluoridesGTPase-Activating ProteinsGuanosine DiphosphateMacromolecular SubstancesModels, MolecularMolecular Sequence DataMutationProtein BindingProtein Structure, SecondaryProtein Structure, TertiaryProtein Tyrosine PhosphatasesRac1 GTP-Binding ProteinRecombinant Fusion ProteinsSalmonella typhimuriumSequence AlignmentSignal Transduction
1999
A Salmonella protein antagonizes Rac-1 and Cdc42 to mediate host-cell recovery after bacterial invasion
Fu Y, Galán J. A Salmonella protein antagonizes Rac-1 and Cdc42 to mediate host-cell recovery after bacterial invasion. Nature 1999, 401: 293-297. PMID: 10499590, DOI: 10.1038/45829.Peer-Reviewed Original ResearchMeSH KeywordsActinsArginineBacterial AdhesionBacterial ProteinsCdc42 GTP-Binding Protein, Saccharomyces cerevisiaeCell Cycle ProteinsCell MembraneEscherichia coliGTPase-Activating ProteinsGTP-Binding ProteinsHumansJNK Mitogen-Activated Protein KinasesMAP Kinase Kinase 4Mitogen-Activated Protein Kinase KinasesMutationProtein KinasesProtein Tyrosine PhosphatasesProteinsRecombinant Fusion ProteinsSalmonella typhimuriumConceptsHost cell cytosolActin cytoskeletonType III secretion systemProtein secretion systemSpecialized protein secretion systemActin cytoskeleton reorganizationCell actin cytoskeletonActin cytoskeletal changesRho GTPase proteinsRac-1Bacterial effectorsEffector proteinsExchange factorGTPase proteinsSecretion systemSalmonella proteinsCytoskeletal changesCellular responsesCdc42ProteinInfected cellsBacterial invasionCytosolBacteriumSPTP
1998
S. typhimurium Encodes an Activator of Rho GTPases that Induces Membrane Ruffling and Nuclear Responses in Host Cells
Hardt W, Chen L, Schuebel K, Bustelo X, Galán J. S. typhimurium Encodes an Activator of Rho GTPases that Induces Membrane Ruffling and Nuclear Responses in Host Cells. Cell 1998, 93: 815-826. PMID: 9630225, DOI: 10.1016/s0092-8674(00)81442-7.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBacterial ProteinsCalcium-Calmodulin-Dependent Protein KinasesCdc42 GTP-Binding ProteinCell Cycle ProteinsCell MembraneCell NucleusCOS CellsCytoskeletonEnzyme ActivationGTP PhosphohydrolasesGTPase-Activating ProteinsGTP-Binding ProteinsGuanosine DiphosphateGuanosine TriphosphateHeLa CellsHumansJNK Mitogen-Activated Protein KinasesMitogen-Activated Protein KinasesProteinsSalmonella typhimuriumSignal TransductionConceptsHost cellsMembrane rufflingSecretion systemGDP/GTP nucleotide exchangeProtein secretion systemActivator of RhoCDNA library screenActin cytoskeleton rearrangementRac-1Rho GTPasesCytoskeletal reorganizationCytoskeleton rearrangementBacterial proteinsNucleotide exchangeLibrary screenJNK activationCellular responsesNuclear responseCdc42Pathogen inducesSopERufflingMicrobial stimulationProteinCells