2022
The flagellar motor protein FliL forms a scaffold of circumferentially positioned rings required for stator activation
Tachiyama S, Chan KL, Liu X, Hathroubi S, Li W, Peterson B, Khan M, Ottemann K, Liu J, Roujeinikova A. The flagellar motor protein FliL forms a scaffold of circumferentially positioned rings required for stator activation. Proceedings Of The National Academy Of Sciences Of The United States Of America 2022, 119: e2118401119. PMID: 35046042, PMCID: PMC8794807, DOI: 10.1073/pnas.2118401119.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceBacterial Physiological PhenomenaBacterial ProteinsFlagellaHelicobacter pyloriMembrane ProteinsModels, MolecularMolecular Motor ProteinsMultiprotein ComplexesProtein BindingProtein ConformationProtein Interaction Domains and MotifsProtein TransportStructure-Activity RelationshipConceptsStator unitsStomatin/prohibitin/flotillin/HflK/C (SPFH) domainWild-type cellsSignificant structural similarityPeriplasmic domainAssembly factorsFlagellar motorAccessory proteinsFliLLinker regionActive conformationFlagellar baseC-domainMotBStructural similarityStator assemblyProteinPutative mechanismsElectron tomography reconstructionsIntact motorCellsActivationDomainMotAHelix
2019
High-resolution view of the type III secretion export apparatus in situ reveals membrane remodeling and a secretion pathway
Butan C, Lara-Tejero M, Li W, Liu J, Galán JE. High-resolution view of the type III secretion export apparatus in situ reveals membrane remodeling and a secretion pathway. Proceedings Of The National Academy Of Sciences Of The United States Of America 2019, 116: 24786-24795. PMID: 31744874, PMCID: PMC6900529, DOI: 10.1073/pnas.1916331116.Peer-Reviewed Original Research
2018
Visualization of the type III secretion mediated Salmonella–host cell interface using cryo-electron tomography
Park D, Lara-Tejero M, Waxham MN, Li W, Hu B, Galán JE, Liu J. Visualization of the type III secretion mediated Salmonella–host cell interface using cryo-electron tomography. ELife 2018, 7: e39514. PMID: 30281019, PMCID: PMC6175578, DOI: 10.7554/elife.39514.Peer-Reviewed Original ResearchConceptsCryo-electron tomographyEffector translocationBacterial-host cell contactType III protein secretion systemProtein secretion systemHost cell interfaceProtein secretion machinesCell membraneComplex host-pathogen interactionsType III secretionHost-pathogen interactionsHost cell membraneTarget cell membraneNegative bacterial pathogensTranslocon poreSecretion machineEffector proteinsSecretion systemHost cellsBacterial pathogensCell contactCell interfaceIntimate associationTranslocationBacteria