2020
Structural basis of ER-associated protein degradation mediated by the Hrd1 ubiquitin ligase complex
Wu X, Siggel M, Ovchinnikov S, Mi W, Svetlov V, Nudler E, Liao M, Hummer G, Rapoport TA. Structural basis of ER-associated protein degradation mediated by the Hrd1 ubiquitin ligase complex. Science 2020, 368 PMID: 32327568, PMCID: PMC7380553, DOI: 10.1126/science.aaz2449.Peer-Reviewed Original ResearchMeSH KeywordsCarrier ProteinsCryoelectron MicroscopyEndoplasmic ReticulumEndoplasmic Reticulum-Associated DegradationMembrane GlycoproteinsMembrane ProteinsMolecular Dynamics SimulationMultiprotein ComplexesProtein DomainsProtein FoldingProteolysisSaccharomyces cerevisiae ProteinsUbiquitin-Protein LigasesConceptsHrd1 complexLuminal endoplasmic reticulum proteinsCryo-electron microscopy analysisHrd1 ubiquitin ligaseEndoplasmic reticulum proteinER membraneUbiquitin ligaseProtein degradationStructural basisReticulum proteinsPolypeptide loopMembrane regionsLateral gateLuminal binding sitesBinding sitesLuminal cavityForm twoYos9RetrotranslocationERADMicroscopy analysisSubcomplexLigaseHRD1Proteasome
2017
Structural basis of MsbA-mediated lipopolysaccharide transport
Mi W, Li Y, Yoon SH, Ernst RK, Walz T, Liao M. Structural basis of MsbA-mediated lipopolysaccharide transport. Nature 2017, 549: 233-237. PMID: 28869968, PMCID: PMC5759761, DOI: 10.1038/nature23649.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine DiphosphateATP-Binding Cassette TransportersBacterial ProteinsBiological TransportCell MembraneCryoelectron MicroscopyEscherichia coliHydrophobic and Hydrophilic InteractionsLipid BilayersLipopolysaccharidesModels, MolecularNanostructuresPeriplasmProtein BindingProtein DomainsConceptsPeriplasmic leafletStructural basisSingle-particle cryo-electron microscopyCryo-electron microscopyÅ resolution structureLipid flippasesGram-negative bacteriaLipopolysaccharide transportTransmembrane domainInner membraneCytoplasmic leafletMsbAOuter membraneCell envelopeResolution structureCassette transportersADP-vanadateStructural mechanismsConformational transitionLPS recognitionFunctional stateFlippasesMsbA.Hydrophobic interactionsMembrane