Chapter Eight Illuminating the virus life cycle with single-molecule FRET imaging
Lu M, Ma X, Mothes W. Chapter Eight Illuminating the virus life cycle with single-molecule FRET imaging. Advances In Virus Research 2019, 105: 239-273. PMID: 31522706, PMCID: PMC7246055, DOI: 10.1016/bs.aivir.2019.07.004.Peer-Reviewed Original ResearchMeSH KeywordsEnv Gene Products, Human Immunodeficiency VirusFluorescence Resonance Energy TransferHIV-1Protein ConformationSingle Molecule ImagingVirus InternalizationConceptsVirus life cycleMolecular mechanismsViral proteinsSingle-molecule FRETBiological moleculesPrecise molecular mechanismsFörster resonance energy transfer (FRET) imagingLife cycleConformational dynamicsReal-time imagingEnergetics of transitionsNovel antiviral therapiesStructural intermediatesConformational changesConformational statesNative stateSmFRETRelevant conditionsElegant experimental designsAsymmetric intermediatesIntermediatesViral fusionViral glycoproteinsStructural methodsIntact virionsAssociating HIV-1 envelope glycoprotein structures with states on the virus observed by smFRET
Lu M, Ma X, Castillo-Menendez LR, Gorman J, Alsahafi N, Ermel U, Terry DS, Chambers M, Peng D, Zhang B, Zhou T, Reichard N, Wang K, Grover JR, Carman BP, Gardner MR, Nikić-Spiegel I, Sugawara A, Arthos J, Lemke EA, Smith AB, Farzan M, Abrams C, Munro JB, McDermott AB, Finzi A, Kwong PD, Blanchard SC, Sodroski JG, Mothes W. Associating HIV-1 envelope glycoprotein structures with states on the virus observed by smFRET. Nature 2019, 568: 415-419. PMID: 30971821, PMCID: PMC6655592, DOI: 10.1038/s41586-019-1101-y.Peer-Reviewed Original ResearchConceptsSingle-molecule fluorescence resonance energy transferCryo-electron microscopy studiesHigh-resolution structuresFluorescence resonance energy transferState 1 conformationProline substitutionConformational statesResonance energy transferDisulfide bondsCell entryIntermediate conformationsReceptor moleculesGlycoprotein structureStructural studiesIntact virionsViral EnvCD4 receptor moleculeIntact virusConformationState 2TrimerState 1