2017
Two Disease-Causing SNAP-25B Mutations Selectively Impair SNARE C-terminal Assembly
Rebane AA, Wang B, Ma L, Qu H, Coleman J, Krishnakumar S, Rothman JE, Zhang Y. Two Disease-Causing SNAP-25B Mutations Selectively Impair SNARE C-terminal Assembly. Journal Of Molecular Biology 2017, 430: 479-490. PMID: 29056461, PMCID: PMC5805579, DOI: 10.1016/j.jmb.2017.10.012.Peer-Reviewed Original ResearchConceptsSoluble N-ethylmaleimide-sensitive factor attachment receptorSNARE assemblySynaptic exocytosisMembrane fusionSingle-molecule optical tweezersT-SNARE complexVesicle-associated SNAREsTarget plasma membraneC-terminal assemblyFour-helix bundleC-terminal regionSNARE complexPlasma membraneMolecular mechanismsZipperingMutationsNumerous diseasesAssembly energyNeurotransmitter releaseExocytosisAttachment receptorAssemblyNeurological disordersOptical tweezersComplexes
2016
Single-Molecule Protein Folding Experiments Using High-Precision Optical Tweezers
Jiao J, Rebane AA, Ma L, Zhang Y. Single-Molecule Protein Folding Experiments Using High-Precision Optical Tweezers. Methods In Molecular Biology 2016, 1486: 357-390. PMID: 27844436, PMCID: PMC5508109, DOI: 10.1007/978-1-4939-6421-5_14.Peer-Reviewed Original ResearchConceptsOptical tweezersProtein complexesHigh-resolution optical tweezersSingle-molecule manipulationFolding of proteinsFundamental biological problemOptical trapSingle-molecule measurementsUnprecedented spatiotemporal resolutionThree-dimensional structureTweezersSingle proteinSpontaneous foldingDetailed protocolAmino acidsMolecule proteinProteinBiological problemsPowerful approachMechanical forcesFoldingSpatiotemporal resolutionEnergyTransition kineticsLinear chainsHidden Markov Modeling with Detailed Balance and Its Application to Single Protein Folding
Zhang Y, Jiao J, Rebane AA. Hidden Markov Modeling with Detailed Balance and Its Application to Single Protein Folding. Biophysical Journal 2016, 111: 2110-2124. PMID: 27851936, PMCID: PMC5112951, DOI: 10.1016/j.bpj.2016.09.045.Peer-Reviewed Original ResearchConceptsDetailed balanceThermodynamic equilibriumOptical tweezersIndependent fitting parametersDegenerate statesSingle-molecule trajectoriesSatisfies detailed balanceExtension trajectoriesEnergy landscapeFitting parametersShort trajectoriesProtein foldingExperimental dataTransition stateSNARE zipperingTweezersFree energy
2015
Kinetically coupled folding of a single HIV-1 glycoprotein 41 complex in viral membrane fusion and inhibition
Jiao J, Rebane AA, Ma L, Gao Y, Zhang Y. Kinetically coupled folding of a single HIV-1 glycoprotein 41 complex in viral membrane fusion and inhibition. Proceedings Of The National Academy Of Sciences Of The United States Of America 2015, 112: e2855-e2864. PMID: 26038562, PMCID: PMC4460471, DOI: 10.1073/pnas.1424995112.Peer-Reviewed Original Research
2014
Common intermediates and kinetics, but different energetics, in the assembly of SNARE proteins
Zorman S, Rebane AA, Ma L, Yang G, Molski MA, Coleman J, Pincet F, Rothman JE, Zhang Y. Common intermediates and kinetics, but different energetics, in the assembly of SNARE proteins. ELife 2014, 3: e03348. PMID: 25180101, PMCID: PMC4166003, DOI: 10.7554/elife.03348.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsEnergy TransferHumansKineticsModels, MolecularMolecular Sequence DataMultiprotein ComplexesOptical TweezersProtein FoldingProtein Structure, QuaternaryProtein Structure, SecondaryQa-SNARE ProteinsRatsSequence Homology, Amino AcidSNARE ProteinsThermodynamicsVesicle-Associated Membrane Protein 2Vesicular Transport ProteinsConceptsSoluble N-ethylmaleimide-sensitive factor attachment protein receptorsSNARE complexN-ethylmaleimide-sensitive factor attachment protein receptorsMembrane fusionFactor attachment protein receptorsAttachment protein receptorsHigh-resolution optical tweezersNeuronal SNARE complexFolding/assemblyEnergy releaseSNARE proteinsSingle-molecule levelProtein receptorsDomain associationOptical tweezersTerminal partZippering mechanismFusion kineticsZipperingComplexesAssemblyDifferent energeticsEnergyYeastTweezers
2006
Analysis of In-Vivo LacR-Mediated Gene Repression Based on the Mechanics of DNA Looping
Zhang Y, McEwen AE, Crothers DM, Levene SD. Analysis of In-Vivo LacR-Mediated Gene Repression Based on the Mechanics of DNA Looping. PLOS ONE 2006, 1: e136. PMID: 17205140, PMCID: PMC1762422, DOI: 10.1371/journal.pone.0000136.Peer-Reviewed Original ResearchConceptsGene regulationNucleoprotein complexesNon-specific DNA-binding proteinE. coli lac repressorWild-type E. coli strainDNA-binding proteinsSmall DNA loopsSame DNA moleculeGene repressionDNA loopingDNA loopsOperator sitesOperator affinityDNA rigidityLac repressorE. coli strainsProtein conformationDNA persistence lengthDNA moleculesRepressor concentrationRepressionColi strainsDNARegulationVivo
2005
Statistical-Mechanical Theory of DNA Looping
Zhang Y, McEwen AE, Crothers DM, Levene SD. Statistical-Mechanical Theory of DNA Looping. Biophysical Journal 2005, 90: 1903-1912. PMID: 16361335, PMCID: PMC1386771, DOI: 10.1529/biophysj.105.070490.Peer-Reviewed Original ResearchConceptsMechanical theoryRigorous analytical theoryStatistical mechanical theoryMechanics of DNARigorous theoryAnalytical theoryGeometric propertiesAccount protein flexibilityTopological constraintsTheoryDNA cyclizationTerms of amplitudeLoop topologyStrong couplingProtein geometryMultiple classesTheoretical similaritiesDependenceMechanicsLoop closureGeometryTopologyDNA length dependenceWritheLoop
2003
Statistical Mechanics of Sequence-Dependent Circular DNA and Its Application For DNA Cyclization
Zhang Y, Crothers DM. Statistical Mechanics of Sequence-Dependent Circular DNA and Its Application For DNA Cyclization. Biophysical Journal 2003, 84: 136-153. PMID: 12524271, PMCID: PMC1302599, DOI: 10.1016/s0006-3495(03)74838-3.Peer-Reviewed Original ResearchConceptsStatistical mechanicsAccurate analytic expressionsInhomogeneous DNAMonte Carlo simulationsAnalytic expressionsPartition functionHarmonic approximationEffect of curvatureCarlo simulationsEquilibrium configurationsLinear formThermal fluctuationsThermodynamic quantitiesSequence-dependent DNA bendingDNA cyclizationMinimum energy configurationIterative searchNew theoryMechanicsJ factorEnergy configurationTheoryCurvatureSimulationsApproximation