Featured Publications
Legionella pneumophila proteins that regulate Rab1 membrane cycling
Ingmundson A, Delprato A, Lambright DG, Roy CR. Legionella pneumophila proteins that regulate Rab1 membrane cycling. Nature 2007, 450: 365-369. PMID: 17952054, DOI: 10.1038/nature06336.Peer-Reviewed Original ResearchConceptsDrrA proteinRab1 functionMembrane cyclingGTPase-activating protein activityIntracellular pathogen Legionella pneumophilaRecruitment of Rab1Pathogen-occupied vacuolesPathogen Legionella pneumophilaDistinct biochemical reactionsL. pneumophilaLegionella pneumophilaRab1 activityRab1 activationRab proteinsEukaryotic cellsExchange factorGTP hydrolysisProtein activityRab1Membrane functionBacterial replicationProteinBiochemical reactionsPneumophilaVacuolesThe Legionella pneumophila Effector DrrA Is Sufficient to Stimulate SNARE-Dependent Membrane Fusion
Arasaki K, Toomre DK, Roy CR. The Legionella pneumophila Effector DrrA Is Sufficient to Stimulate SNARE-Dependent Membrane Fusion. Cell Host & Microbe 2012, 11: 46-57. PMID: 22264512, PMCID: PMC3266541, DOI: 10.1016/j.chom.2011.11.009.Peer-Reviewed Original ResearchConceptsMembrane transport pathwaysEndoplasmic reticulumSyntaxin proteinsFusion of ERMembrane fusionSNARE-dependent membrane fusionBacterial pathogen Legionella pneumophilaPathogen-containing vacuolesSNARE protein Sec22bIntracellular bacterial pathogen Legionella pneumophilaPathogen Legionella pneumophilaFusion of vesiclesRab1 activationNoncanonical pairingTransport pathwaysRab1 GTPasePlasma membraneVesicle fusionOrganellesDrrASec22bVesiclesLegionella pneumophilaProteinVacuolesThe Legionella Effector RavZ Inhibits Host Autophagy Through Irreversible Atg8 Deconjugation
Choy A, Dancourt J, Mugo B, O’Connor T, Isberg RR, Melia TJ, Roy CR. The Legionella Effector RavZ Inhibits Host Autophagy Through Irreversible Atg8 Deconjugation. Science 2012, 338: 1072-1076. PMID: 23112293, PMCID: PMC3682818, DOI: 10.1126/science.1227026.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAutophagyAutophagy-Related Protein 7Autophagy-Related Protein 8 FamilyAutophagy-Related ProteinsBacterial ProteinsCell Culture TechniquesCysteine ProteasesGene DeletionGlycineHEK293 CellsHost-Pathogen InteractionsHumansHydrolysisLegionella pneumophilaLegionnaires' DiseaseMicrofilament ProteinsPhagosomesUbiquitin-Activating EnzymesUbiquitin-Conjugating EnzymesConceptsATG8 proteinsIntracellular pathogen Legionella pneumophilaPathogen Legionella pneumophilaAdjacent aromatic residuesCarboxyl-terminal glycine residueAutophagosome membraneEukaryotic cellsAutophagy pathwayGlycine residueAromatic residuesIntracellular pathogensRavZAutophagyProteinLegionella pneumophilaSpecific mechanismsResiduesPathogensATG3MicrobesAtg7CytosolVacuolesPathwayPneumophila
2019
Manipulation of Host Cell Organelles by Intracellular Pathogens
Omotade T, Roy C. Manipulation of Host Cell Organelles by Intracellular Pathogens. 2019, 179-196. DOI: 10.1128/9781683670261.ch13.Peer-Reviewed Original ResearchPathogen-containing vacuolesNascent phagosomesSpecialized organellesIntracellular pathogensHost cell organellesMembrane-bound compartmentsHost-pathogen interfaceMost microbesPhagosome maturationLysosomal degradationMembrane transportCell organellesOrganellesHost macrophagesPhagosomesMicrobesPathogensCompartmentsCoevolutionLysosomesVacuolesReplicationMaturationPhagocytosis
2006
Utilization of Endoplasmic Reticulum Membranes to Establish a Vacuole that Supports Replication of Legionella pneumophila
Stein M, Roy C. Utilization of Endoplasmic Reticulum Membranes to Establish a Vacuole that Supports Replication of Legionella pneumophila. 2006, 199-210. DOI: 10.1002/352760880x.ch11.Peer-Reviewed Original ResearchAutophagy machineryAutophagy mutantsHost autophagy machineryAutophagosome maturationMorphological differencesOther BacteriaLegionella replicationAutophagy formationEndoplasmic reticulum membraneReticulum membraneMutantsAutophagosomesMachineryAutophagyBiogenesisLegionella pneumophilaVacuolesBacteriaReplicationLCVMaturationLegionellaInduction