2024
Loss of function of metabolic traits in typhoidal Salmonella without apparent genome degradation
Machado L, Galán J. Loss of function of metabolic traits in typhoidal Salmonella without apparent genome degradation. MBio 2024, 15: e00607-24. PMID: 38572992, PMCID: PMC11077982, DOI: 10.1128/mbio.00607-24.Peer-Reviewed Original ResearchConceptsSalmonella enterica</i> serovar TyphiAdaptive convergent evolutionFunction of metabolic pathwaysAmino acid substitutionsConvergent evolutionMetabolic pathwaysParatyphi A.Paratyphi AHuman hostTranscriptional regulationAcid substitutionsMetabolic capabilitiesPoint mutationsParatyphoid feverTranscriptional regulatory proteinsMetabolic enzymesAffecting different genesPresence of point mutationsGenome degradationTyphoidal SalmonellaGlucose-6-phosphateCoding sequenceBioinformatics approachTyphiBacterial pathogens
2000
The Flagellar Sigma Factor FliA (ς28) Regulates the Expression of Salmonella Genes Associated with the Centisome 63 Type III Secretion System
Eichelberg K, Galán J. The Flagellar Sigma Factor FliA (ς28) Regulates the Expression of Salmonella Genes Associated with the Centisome 63 Type III Secretion System. Infection And Immunity 2000, 68: 2735-2743. PMID: 10768967, PMCID: PMC97482, DOI: 10.1128/iai.68.5.2735-2743.2000.Peer-Reviewed Original ResearchConceptsType III secretion systemSecretion systemExpression of componentsRegulatory proteinsType III protein secretion systemRegulatory mechanismsSerovar TyphimuriumFlagellar sigma factor FliASigma factor FliAProtein secretion systemTranscriptional regulatory proteinsSalmonella pathogenicity island 1Complex regulatory mechanismsFlagellar regulatory genesPathogenicity island 1Macrophage cell deathEffects of mutationsType III systemCultured epithelial cellsFlagellar genesEnterica serovar TyphimuriumMild centrifugal forceRegulatory genesSalmonella genesS. enterica serovar Typhimurium
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