2001
Characterization of the mutS-proximal region of the Salmonella typhimurium SPI-1 identifies a group of pathogenicity island-associated genes
Pancetti A, Galán J. Characterization of the mutS-proximal region of the Salmonella typhimurium SPI-1 identifies a group of pathogenicity island-associated genes. FEMS Microbiology Letters 2001, 197: 203-208. PMID: 11313135, DOI: 10.1111/j.1574-6968.2001.tb10604.x.Peer-Reviewed Original ResearchConceptsPathogenicity islandSecretion systemType III protein secretion systemSPI-1Type III secretion systemHigher eukaryotic hostsProtein secretion systemSet of genesIron uptake systemExpression of genesSegment of DNAPotential pathogenicity islandsEukaryotic hostsFhlA geneGene blockCentisome 63Pig genesFunctional copyTranscription factorsSalmonella chromosomeUnknown functionUptake systemGenesBacterial pathogensHomolog
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
1998
Identification of a Specific Chaperone for SptP, a Substrate of the Centisome 63 Type III Secretion System ofSalmonella typhimurium
Fu Y, Galán J. Identification of a Specific Chaperone for SptP, a Substrate of the Centisome 63 Type III Secretion System ofSalmonella typhimurium. Journal Of Bacteriology 1998, 180: 3393-3399. PMID: 9642193, PMCID: PMC107295, DOI: 10.1128/jb.180.13.3393-3399.1998.Peer-Reviewed Original ResearchMeSH KeywordsActinsAmino Acid SequenceBacterial ProteinsBase SequenceChromosomes, BacterialCloning, MolecularComplement Inactivator ProteinsCytoskeletonKineticsMolecular Sequence DataPlasmidsPolymerase Chain ReactionProtein Tyrosine PhosphatasesRecombinant Fusion ProteinsSalmonella typhimuriumSequence AlignmentSequence Homology, Amino AcidConceptsType III secretion systemSecretion systemSpecific chaperonesActin cytoskeletonTyrosine phosphataseType III protein secretion systemHost cell actin cytoskeletonHost cellsProtein secretion systemCell actin cytoskeletonHost cell responsesPulse-chase experimentsCytoplasmic chaperonesCentisome 63Effector proteinsTranscription factorsAcidic polypeptidesChaperonesResidues 15Function mutationsEffector moleculesCytoskeletonProteinSPTPSalmonella typhimurium
1997
The invasion-associated type-III protein secretion system inSalmonella – a review1Presented at the Workshop on `Type-4 Pili – Biogenesis, Adhesins, Protein Export, and DNA Import', Schloss Ringberg, Germany, 26–29 November 1995.1
Collazo C, Galán J. The invasion-associated type-III protein secretion system inSalmonella – a review1Presented at the Workshop on `Type-4 Pili – Biogenesis, Adhesins, Protein Export, and DNA Import', Schloss Ringberg, Germany, 26–29 November 1995.1. Gene 1997, 192: 51-59. PMID: 9224874, DOI: 10.1016/s0378-1119(96)00825-6.Peer-Reviewed Original ResearchConceptsProtein secretion systemSecretion systemType-4 Pili – BiogenesisHost cellsEukaryotic host cellsSpecialized protein secretion systemNon-phagocytic cellsMolecular genetic analysisDNA importPili biogenesisProtein exportSchloss RingbergCentisome 63Bacterial chromosomeAnimal pathogensGenetic analysisPathogenicity islandGenetic determinantsCellsReview1PresentedChromosomesPlantsProteinTranslocationAdhesinsThe 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 techniquesMutationsMolecular genetic bases of Salmonella entry into host cells
Galán J. Molecular genetic bases of Salmonella entry into host cells. Molecular Microbiology 1996, 20: 263-271. PMID: 8733226, DOI: 10.1111/j.1365-2958.1996.tb02615.x.Peer-Reviewed Original ResearchConceptsMolecular genetic basisGenetic basisContact-dependent secretion systemsPlant pathogenic bacteriaNumber of proteinsNon-phagocytic cellsCultured epithelial cellsCentisome 63Secretion systemVariety of animalsKb regionSalmonella chromosomeSalmonella entryExtracellular environmentRemarkable homologyHost cellsEpithelial cellsEntry functionCellsChromosomesConsiderable progressHomologyLociOrganismsProtein