2000
Design of single-layer β-sheets without a hydrophobic core
Koide S, Huang X, Link K, Koide A, Bu Z, Engelman D. Design of single-layer β-sheets without a hydrophobic core. Nature 2000, 403: 456-460. PMID: 10667801, DOI: 10.1038/35000255.Peer-Reviewed Original ResearchConceptsSingle-layer β-sheetΒ-sheetHydrophobic coreΒ-sheet segmentsProtein foldingHydrogen-deuterium exchangeOuter surface protein AΒ-sheet structureChemical denaturationSmall-angle X-rayProtein AFoldingMain thermodynamic driving forceSurface protein ABorrelia burgdorferiNuclear magnetic resonanceThermodynamic driving forceMisfoldingNonpolar moietiesHydrophobic effectSolvent resultsProteinAdjacent unitsDenaturationVariants
1999
Multistep Denaturation of Borrelia burgdorferi OspA, a Protein Containing a Single-Layer β-Sheet †
Koide S, Bu Z, Risal D, Pham T, Nakagawa T, Tamura A, Engelman D. Multistep Denaturation of Borrelia burgdorferi OspA, a Protein Containing a Single-Layer β-Sheet †. Biochemistry 1999, 38: 4757-4767. PMID: 10200164, DOI: 10.1021/bi982443+.Peer-Reviewed Original ResearchConceptsSolution small-angle X-ray scatteringChemical shift differencesSingle-layer β-sheetSignificant kinetic barrierSmall-angle X-ray scatteringHeteronuclear NMR spectroscopyDifferential scanning calorimetryNMR spectroscopyRadius of gyrationX-ray scatteringDenaturation reactionNMR measurementsShift differencesKinetic barrierRigid moleculesScanning calorimetrySAXS measurementsΒ-sheetCooperative transitionReactionLys residuesBorrelia burgdorferi OspANative proteinBeta-sheet segmentThermal denaturation reaction
1996
Surface point mutations that significantly alter the structure and stability of a protein's denatured state
Smith C, Bu Z, Engelman D, Regan L, Anderson K, Sturtevant J. Surface point mutations that significantly alter the structure and stability of a protein's denatured state. Protein Science 1996, 5: 2009-2019. PMID: 8897601, PMCID: PMC2143264, DOI: 10.1002/pro.5560051007.Peer-Reviewed Original ResearchConceptsPoint mutationsDenatured stateStopped-flow fluorescenceDenaturant concentrationSolvent-exposed sitesStreptococcal protein GMutantsG mutantTertiary structureGuHCl denaturationEquilibrium intermediatesPosition 53B1 domainProteinCircular dichroismMutationsProtein GGuanidine hydrochlorideSmall-angle X-ray scatteringStructural implicationsX-ray scatteringFluorescenceThrRadius of gyrationDenaturants
1993
Mutations can cause large changes in the conformation of a denatured protein.
Flanagan J, Kataoka M, Fujisawa T, Engelman D. Mutations can cause large changes in the conformation of a denatured protein. Biochemistry 1993, 32: 10359-70. PMID: 8399179, DOI: 10.1021/bi00090a011.Peer-Reviewed Original ResearchConceptsAmino acid substitutionsPolypeptide chainSecondary structureCoil-like polymerAcid substitutionsCircular dichroism spectroscopySmall-angle X-ray scatteringSingle amino acid substitutionCarboxyl-terminal deletionsPersistent secondary structureResidual secondary structureX-ray scatteringUseful model systemDelta polypeptideSolvent conditionsDichroism spectroscopyConformational distributionCarboxyl terminusNative nucleaseRandom polymersAmino acidsSingle substitutionPolymersStaphylococcal nucleaseGlobular proteins
1992
Truncated staphylococcal nuclease is compact but disordered.
Flanagan J, Kataoka M, Shortle D, Engelman D. Truncated staphylococcal nuclease is compact but disordered. Proceedings Of The National Academy Of Sciences Of The United States Of America 1992, 89: 748-752. PMID: 1731350, PMCID: PMC48316, DOI: 10.1073/pnas.89.2.748.Peer-Reviewed Original ResearchConceptsComplete folding pathwayWild-type levelsCarboxyl-terminal deletionsSecondary structural featuresNative-like conformationPersistent secondary structureProtein foldsCarboxyl terminusFolding pathwaysPolypeptide chainSecondary structureAmino acidsStaphylococcal nucleaseSmall-angle X-rayNuclear magnetic resonanceCircular dichroismPhysiological conditionsNucleasePotent inhibitorDeletionSolvent exclusionMolecules resultsStructural featuresPresence of calciumRibosomes
1991
Structure-function studies of bacteriorhodopsin XV. Effects of deletions in loops B-C and E-F on bacteriorhodopsin chromophore and structure
Gilles-Gonzalez M, Engelman D, Khorana H. Structure-function studies of bacteriorhodopsin XV. Effects of deletions in loops B-C and E-F on bacteriorhodopsin chromophore and structure. Journal Of Biological Chemistry 1991, 266: 8545-8550. PMID: 2022666, DOI: 10.1016/s0021-9258(18)93009-7.Peer-Reviewed Original Research
1987
Refolding of bacteriorhodopsin in lipid bilayers A thermodynamically controlled two-stage process
Popot J, Gerchman S, Engelman D. Refolding of bacteriorhodopsin in lipid bilayers A thermodynamically controlled two-stage process. Journal Of Molecular Biology 1987, 198: 655-676. PMID: 3430624, DOI: 10.1016/0022-2836(87)90208-7.Peer-Reviewed Original ResearchConceptsLipid vesiclesAbsence of retinalAlpha-helical structureStable transmembrane helixPurple membrane latticeTransmembrane helicesSmall lipid vesiclesCircular dichroism spectraMembrane proteinsMixture of monomersFree energy minimumDodecyl sulfate solutionVesicle fusionRenatured moleculesSame absorption spectrumCorrect refoldingMajor rearrangementsStructure of bacteriorhodopsinTertiary structureMembrane latticeAbsorption spectroscopyNeutron crystallographyFolding mechanismPartial dehydration processLipid bilayers
1986
Localization of two chymotryptic fragments in the structure of renatured bacteriorhodopsin by neutron diffraction.
Trewhella J, Popot J, Zaccaï G, Engelman D. Localization of two chymotryptic fragments in the structure of renatured bacteriorhodopsin by neutron diffraction. The EMBO Journal 1986, 5: 3045-3049. PMID: 3792306, PMCID: PMC1167259, DOI: 10.1002/j.1460-2075.1986.tb04604.x.Peer-Reviewed Original Research