2023
Syntaxin 11 Contributes to the Interferon-Inducible Restriction of Coxiella burnetii Intracellular Infection
Ganesan S, Alvarez N, Steiner S, Fowler K, Corona A, Roy C. Syntaxin 11 Contributes to the Interferon-Inducible Restriction of Coxiella burnetii Intracellular Infection. MBio 2023, 14: e03545-22. PMID: 36728431, PMCID: PMC9972978, DOI: 10.1128/mbio.03545-22.Peer-Reviewed Original ResearchConceptsC. burnetii replicationSNARE proteinsHost cellsSyntaxin-11Cell-autonomous responsesIntracellular pathogensMembrane fusion eventsLysosome-derived organellesDefense mechanismsModel bacterial pathogenMultiple cell typesEukaryotic cellsDefense pathwaysDelivery of cargoReplication of pathogensHuman proteinsFusion eventsDissemination of pathogensFusion pathwayHost proteinsIntrinsic defense mechanismsHost vesiclesHost restriction factorsStable expressionSubcellular organelles
2022
Developmental Transitions Coordinate Assembly of the Coxiella burnetii Dot/Icm Type IV Secretion System
Park D, Steiner S, Shao M, Roy CR, Liu J. Developmental Transitions Coordinate Assembly of the Coxiella burnetii Dot/Icm Type IV Secretion System. Infection And Immunity 2022, 90: e00410-22. PMID: 36190257, PMCID: PMC9584302, DOI: 10.1128/iai.00410-22.Peer-Reviewed Original ResearchConceptsSmall cell variantLarge cell variantDot/Icm type IV secretion systemCell variantIntracellular replicationActive large cell variantHost cellsIntracellular bacterial pathogenType IV secretion systemDot/Icm T4SSObligate intracellular bacterial pathogenC. burnetiiCoxiella burnetiiBiphasic developmental cycleUnique biphasic developmental cycleInfectionNew host cellsSecretion systemBacterial pathogensInfectious formHost vacuoleBurnetiiMorphological changesCellsLater stages
2021
Coxiella burnetii encodes an LvgA‐related protein important for intracellular replication
Steiner S, Meir A, Roy CR. Coxiella burnetii encodes an LvgA‐related protein important for intracellular replication. Cellular Microbiology 2021, 23: e13331. PMID: 33774901, DOI: 10.1111/cmi.13331.Peer-Reviewed Original ResearchConceptsIntracellular replicationDot/Icm type IVB secretion systemType IVB secretion systemDot/Icm apparatusHost cell cytosolTransposon mutagenesis screenAutophagy protein LC3Lysosome-derived organellesL. pneumophilaSecondary structure predictionChaperone complexBiogenesis defectsEffector proteinsEffector translocationProtein complexesMutagenesis screenSecretion systemLvgACell cytosolNine Mile phase IIProtein LC3MutantsReplication phenotypeProteinStructure prediction