2001
A Salmonella inositol polyphosphatase acts in conjunction with other bacterial effectors to promote host cell actin cytoskeleton rearrangements and bacterial internalization
Zhou D, Chen L, Hernandez L, Shears S, Galán J. A Salmonella inositol polyphosphatase acts in conjunction with other bacterial effectors to promote host cell actin cytoskeleton rearrangements and bacterial internalization. Molecular Microbiology 2001, 39: 248-260. PMID: 11136447, DOI: 10.1046/j.1365-2958.2001.02230.x.Peer-Reviewed Original ResearchMeSH KeywordsActinsAnimalsBacterial ProteinsCdc42 GTP-Binding ProteinCell MembraneCells, CulturedChlorocebus aethiopsCOS CellsCytoskeletonHumansInositol PhosphatesIntestinesJNK Mitogen-Activated Protein KinasesMAP Kinase Kinase 4Mitogen-Activated Protein Kinase KinasesPhosphoric Monoester HydrolasesPhosphorylationSalmonella InfectionsSalmonella typhimuriumTransfectionConceptsActin cytoskeleton rearrangementCytoskeleton rearrangementBacterial entrySecretion systemBacterial internalizationCellular responsesHost cellsRho GTPases signalingProtein secretion systemHost cell actin cytoskeleton rearrangementsHost cellular functionsSpecialized protein secretion systemCdc42-dependent mannerNon-phagocytic cellsBacterial effectorsAbility of SalmonellaInositol phosphataseCellular functionsDefective mutantsBacterial proteinsCo-ordinated functionSalmonella pathogenicityBacterium's abilitySopBPhospholipase C.
1999
Differential Regulation of Salmonella typhimurium Type III Secreted Proteins by Pathogenicity Island 1 (SPI-1)-Encoded Transcriptional Activators InvF and HilA
Eichelberg K, Galán J. Differential Regulation of Salmonella typhimurium Type III Secreted Proteins by Pathogenicity Island 1 (SPI-1)-Encoded Transcriptional Activators InvF and HilA. Infection And Immunity 1999, 67: 4099-4105. PMID: 10417179, PMCID: PMC96710, DOI: 10.1128/iai.67.8.4099-4105.1999.Peer-Reviewed Original ResearchConceptsExpression of componentsSPI-1Secretion systemRegulatory proteinsType III protein secretion systemType III secretion machineryCellular responsesHost cellsFunction mutationsType III secretion systemInvasion-associated type III secretion systemProtein secretion systemTranscriptional regulatory proteinsComplex regulatory mechanismsPathogenicity island 1Secretion machineryCentisome 63Different genesRegulatory mechanismsMutant strainPathogenicity islandInvFIsland 1Differential regulationProteinCharacterization of SprA, an AraC‐like transcriptional regulator encoded within the Salmonella typhimurium pathogenicity island 1
Eichelberg K, Hardt W, Galán J. Characterization of SprA, an AraC‐like transcriptional regulator encoded within the Salmonella typhimurium pathogenicity island 1. Molecular Microbiology 1999, 33: 139-152. PMID: 10411731, DOI: 10.1046/j.1365-2958.1999.01458.x.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsAraC Transcription FactorBacterial ProteinsBiological TransportCells, CulturedChromosome MappingChromosomes, BacterialConsensus SequenceDNA-Binding ProteinsEpithelial CellsGene Expression Regulation, BacterialGenes, BacterialGenes, ReporterHelix-Loop-Helix MotifsMolecular Sequence DataMultigene FamilyPhylogenyRecombinant Fusion ProteinsRepressor ProteinsSalmonella typhimuriumSequence AlignmentSequence Homology, Amino AcidSignal TransductionTrans-ActivatorsTranscription FactorsTranscription, GeneticVirulenceConceptsType III secretion systemTranscriptional regulatory proteinsPathogenicity island 1Secretion systemRegulatory proteinsType III protein secretion systemSPI-1Island 1Host cellsProtein secretion systemTranscriptional regulatory cascadeSpecific transcriptional regulatory proteinsAdditional regulatory proteinsSignificant sequence similarityAraC-like transcriptional regulatorActin cytoskeletal rearrangementRegulation of expressionInvasion-associated genesExpression of genesNon-phagocytic cellsCentisome 63Effector proteinsTranscriptional regulatorsRegulatory cascadeSequence similarity
1997
The invasion‐associated type III system of Salmonella typhimurium directs the translocation of Sip proteins into the host cell
Collazo C, Galán J. The invasion‐associated type III system of Salmonella typhimurium directs the translocation of Sip proteins into the host cell. Molecular Microbiology 1997, 24: 747-756. PMID: 9194702, DOI: 10.1046/j.1365-2958.1997.3781740.x.Peer-Reviewed Original ResearchConceptsProtein secretion systemProtein translocationHost cellsSIP proteinHenle-407 cellsType III protein secretion systemType III secretion systemType III secretion apparatusType III systemSubset of targetsCentisome 63Secretion apparatusSecretion systemBacterial entryBacterial internalizationNull mutationSalmonella typhimuriumCytochalasin DTranslocation processTranslocationProteinMutationsPresence of gentamicinSipBS. typhimurium strain
1996
Salmonella spp. are cytotoxic for cultured macrophages
Chen L, Kaniga K, Galán J. Salmonella spp. are cytotoxic for cultured macrophages. Molecular Microbiology 1996, 21: 1101-1115. PMID: 8885278, DOI: 10.1046/j.1365-2958.1996.471410.x.Peer-Reviewed Original ResearchConceptsProtein secretion systemNon-phagocytic cellsBacterial internalizationType III protein secretion systemCell deathFragmentation of chromatinWild-type Salmonella typhimuriumMacrophage cell deathBone marrow-derived murine macrophagesMurine macrophagesFeatures of apoptosisCentisome 63Membrane rufflingSecretion apparatusMembrane blebbingBacterial entrySalmonella chromosomeMacrophage cytotoxicityHost rangeCytoplasmic nucleosomesApoptotic bodiesBacterial uptakeCytochalasin DBiochemical techniquesMutations
1994
The Salmonella typhimurium invasion genes invF and invG encode homologues of the AraC and PulD family of proteins
Kaniga K, Bossio J, Galán J. The Salmonella typhimurium invasion genes invF and invG encode homologues of the AraC and PulD family of proteins. Molecular Microbiology 1994, 13: 555-568. PMID: 7997169, DOI: 10.1111/j.1365-2958.1994.tb00450.x.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAraC Transcription FactorBacterial Outer Membrane ProteinsBacterial ProteinsBase SequenceCells, CulturedCloning, MolecularDNA-Binding ProteinsGene Expression Regulation, BacterialGenes, BacterialMembrane ProteinsMembrane Transport ProteinsMolecular Sequence DataMutagenesisRecombinant ProteinsRepressor ProteinsRestriction MappingSalmonella typhimuriumSequence Homology, Amino AcidTranscription FactorsTranscription, GeneticVirulenceConceptsCultured epithelial cellsSalmonella typhimurium genesNon-polar mutationT7 RNA polymerase-based expression systemEpithelial cellsAraC familyTranscription regulatorsInv locusTyphimurium genesNucleotide sequenceSalmonella entryInvGExpression systemInvFGenesProteinSequenceMutationsS. typhimuriumFamilyTranslocasesSimilar sizeCellsMembersHomologuesThe molecular genetic bases of Salmonella entry into mammalian cells
Galán J, Ginocchio C. The molecular genetic bases of Salmonella entry into mammalian cells. Biochemical Society Transactions 1994, 22: 301-306. PMID: 7958312, DOI: 10.1042/bst0220301.Peer-Reviewed Original Research
1993
Signal transduction and invasion of epithelial cells by S. typhimurium
Pace J, Hayman M, Galán J. Signal transduction and invasion of epithelial cells by S. typhimurium. Cell 1993, 72: 505-514. PMID: 8382566, DOI: 10.1016/0092-8674(93)90070-7.Peer-Reviewed Original ResearchMeSH KeywordsArachidonate 5-LipoxygenaseArachidonic AcidCalciumCalcium-Calmodulin-Dependent Protein KinasesCells, CulturedEndocytosisEpidermal Growth FactorEpitheliumErbB ReceptorsPhospholipases APhospholipases A2PhosphorylationProtein KinasesSalmonella InfectionsSalmonella typhimuriumSignal TransductionSRS-AConceptsCultured epithelial cellsBacterial entryMitogen-activated protein kinaseEpithelial cellsS. typhimurium invasionS. typhimuriumEpidermal growth factor receptorSignal transductionProtein kinaseGrowth factor receptorHenle-407 cellsTyphimurium invasionHost cellsPathogenicity of SalmonellaFactor receptorInfected cellsMutantsInvasionCalcium fluxCellsPhospholipase A2TyphimuriumIntracellular calciumActivationFree intracellular calciumCloning and molecular characterization of a gene involved in Salmonella adherence and invasion of cultured epithelial cells
Altmeyer R, McNern J, Bossio JC, Rosenshine I, Finlay B, Galán J. Cloning and molecular characterization of a gene involved in Salmonella adherence and invasion of cultured epithelial cells. Molecular Microbiology 1993, 7: 89-98. PMID: 8382333, DOI: 10.1111/j.1365-2958.1993.tb01100.x.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBacterial AdhesionBacterial ProteinsBase SequenceCells, CulturedDNA Transposable ElementsEpithelial CellsEpitheliumGenes, BacterialMolecular Sequence DataMutagenesisPhenotypeRecombinant Fusion ProteinsSalmonellaSalmonella typhimuriumSequence Homology, Nucleic AcidVirulenceConceptsCultured epithelial cellsInvH geneT7 RNA polymerase expression systemBacterial membrane fractionsEpithelial cellsSignal sequenceExtensive homologyColony hybridization analysisNucleotide sequenceGene productsHomologous sequencesExpression systemException of strainsMolecular characterizationGenesHybridization analysisMembrane fractionCultured cellsEscherichia coliPolypeptideInsertion sequence IS3E. coliOrganismsInvHSequence