2001
Specificity in transmembrane helix–helix interactions can define a hierarchy of stability for sequence variants
Fleming K, Engelman D. Specificity in transmembrane helix–helix interactions can define a hierarchy of stability for sequence variants. Proceedings Of The National Academy Of Sciences Of The United States Of America 2001, 98: 14340-14344. PMID: 11724930, PMCID: PMC64683, DOI: 10.1073/pnas.251367498.Peer-Reviewed Original ResearchMeSH KeywordsBinding SitesDimerizationDrug StabilityElectrophoresis, Polyacrylamide GelGenetic VariationGlycophorinsHumansIn Vitro TechniquesMagnetic Resonance SpectroscopyMembrane ProteinsMutagenesis, Site-DirectedPoint MutationProtein FoldingProtein Structure, SecondaryRecombinant Fusion ProteinsThermodynamicsUltracentrifugationConceptsHelix-helix interactionsMembrane proteinsTransmembrane helix-helix interactionsSequence variantsHelical membrane proteinsTransmembrane helix dimerizationProtein-protein interactionsDifferent hydrophobic environmentsAlanine-scanning mutagenesisSedimentation equilibrium analytical ultracentrifugationEquilibrium analytical ultracentrifugationTransmembrane helicesHelix dimerizationGxxxG motifDimer interfaceNMR structureDimer stabilityAnalytical ultracentrifugationHydrophobic environmentProteinMutationsSequence dependenceEnergetic principlesHierarchy of stabilityMutagenesis
2000
Modulation of glycophorin A transmembrane helix interactions by lipid bilayers: molecular dynamics calculations11Edited by G. Von Heijne
Petrache H, Grossfield A, MacKenzie K, Engelman D, Woolf T. Modulation of glycophorin A transmembrane helix interactions by lipid bilayers: molecular dynamics calculations11Edited by G. Von Heijne. Journal Of Molecular Biology 2000, 302: 727-746. PMID: 10986130, DOI: 10.1006/jmbi.2000.4072.Peer-Reviewed Original ResearchMeSH Keywords1,2-DipalmitoylphosphatidylcholineAlgorithmsAmino Acid MotifsAmino Acid SequenceBinding SitesComputer SimulationDimerizationDimyristoylphosphatidylcholineGlycophorinsLipid BilayersModels, MolecularMolecular Sequence DataNuclear Magnetic Resonance, BiomolecularPeptide FragmentsPhosphatidylcholinesProtein BindingProtein Structure, SecondaryProtein Structure, TertiaryThermodynamicsConceptsMonomer formLipid bilayersLipid chain lengthUnfavorable electrostatic repulsionLipid typeMolecular dynamics simulationsExplicit lipid bilayerElectrostatic repulsionMonomeric helicesLipid-lipid interactionsInteraction enthalpiesChain lengthDimer structureEnergetic propertiesCHARMM potentialInteraction energyAccessible volumeDynamics simulationsLipid propertiesUnsaturated lipidsEnthalpy calculationsLipid environmentBilayer thicknessAcyl chainsThermodynamic treatmentStatistical analysis of amino acid patterns in transmembrane helices: the GxxxG motif occurs frequently and in association with β-branched residues at neighboring positions11Edited by G. von Heijne
Senes A, Gerstein M, Engelman D. Statistical analysis of amino acid patterns in transmembrane helices: the GxxxG motif occurs frequently and in association with β-branched residues at neighboring positions11Edited by G. von Heijne. Journal Of Molecular Biology 2000, 296: 921-936. PMID: 10677292, DOI: 10.1006/jmbi.1999.3488.Peer-Reviewed Original ResearchAmino Acid MotifsAmino Acid SubstitutionAmino Acids, Branched-ChainBiasBinding SitesCell MembraneDatabases, FactualDimerizationGlycineGlycophorinsIsoleucineMathematicsMembrane ProteinsModels, MolecularMolecular WeightOdds RatioPliabilityProtein FoldingProtein Structure, SecondaryThermodynamicsValineThe GxxxG motif: A framework for transmembrane helix-helix association11Edited by G. von Heijne
Russ W, Engelman D. The GxxxG motif: A framework for transmembrane helix-helix association11Edited by G. von Heijne. Journal Of Molecular Biology 2000, 296: 911-919. PMID: 10677291, DOI: 10.1006/jmbi.1999.3489.Peer-Reviewed Original ResearchAmino Acid MotifsAmino Acid SequenceAmino Acid SubstitutionBacterial ProteinsBinding SitesChloramphenicol ResistanceCloning, MolecularConsensus SequenceDatabases, FactualDimerizationDNA-Binding ProteinsEscherichia coliGlycophorinsIntracellular MembranesMembrane ProteinsModels, MolecularPeptide LibraryProtein Structure, SecondaryProtein Structure, TertiaryThermodynamicsTranscription Factors
1999
Detergents modulate dimerization, but not helicity, of the glycophorin A transmembrane domain 11Edited by G. von Heijne
Fisher L, Engelman D, Sturgis J. Detergents modulate dimerization, but not helicity, of the glycophorin A transmembrane domain 11Edited by G. von Heijne. Journal Of Molecular Biology 1999, 293: 639-651. PMID: 10543956, DOI: 10.1006/jmbi.1999.3126.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceButyratesCircular DichroismDetergentsDimerizationEnergy TransferFluorescent DyesGlycophorinsHumansKineticsMicellesMolecular Sequence DataPeptide FragmentsPhosphorylcholineProtein Structure, SecondaryQuaternary Ammonium CompoundsSodium Dodecyl SulfateSolventsSpectrometry, FluorescenceThermodynamicsConceptsSpecific chemical interactionsFörster resonance energy transferResonance energy transferSodium dodecyl sulfateComplex solventChemical interactionFar-UV circular dichroismCircular dichroismDodecyl sulfateTransmembrane helix associationDetergent micellesHelix associationEnergy transferThermodynamic measurementsHelix formationObserved KdZwitterionic detergentSecondary structureDimerizationG. von HeijneHelix dimerizationOrders of magnitudeDetergentsTransmembrane helicesTransmembrane domain
1997
A Biophysical Study of Integral Membrane Protein Folding †
Hunt J, Earnest T, Bousché O, Kalghatgi K, Reilly K, Horváth C, Rothschild K, Engelman D. A Biophysical Study of Integral Membrane Protein Folding †. Biochemistry 1997, 36: 15156-15176. PMID: 9398244, DOI: 10.1021/bi970146j.Peer-Reviewed Original ResearchConceptsAlpha-helical integral membrane proteinsIntegral membrane proteinsMembrane proteinsIntegral membrane protein foldingMembrane protein foldingNon-native conformationsStable secondary structureCellular chaperonesBiophysical dissectionBeta-sheet structureProtein foldingIndividual polypeptidesBiophysical studiesStructure of bacteriorhodopsinTertiary structureSecondary structureReconstitution protocolsG helicesPolypeptideF helixProteinPhospholipid vesiclesHelixFoldingBacteriorhodopsinSpontaneous, pH-Dependent Membrane Insertion of a Transbilayer α-Helix †
Hunt J, Rath P, Rothschild K, Engelman D. Spontaneous, pH-Dependent Membrane Insertion of a Transbilayer α-Helix †. Biochemistry 1997, 36: 15177-15192. PMID: 9398245, DOI: 10.1021/bi970147b.Peer-Reviewed Original ResearchConceptsLipid bilayersIntegral membrane protein bacteriorhodopsinMembrane-spanning regionIntegral membrane proteinsPH-dependent membrane insertionAspartic acid residuesMembrane protein bacteriorhodopsinInsertion reactionMembrane insertionMembrane proteinsAqueous solutionHydrophobic sequenceAqueous bufferPoor solubilityAlpha-helixAcid residuesSignificant solubilityC-helixSpectroscopic assaysΑ-helixSecondary structureProtein bacteriorhodopsinNeutral pHPeptide associatesBilayersThe effect of point mutations on the free energy of transmembrane α-helix dimerization11Edited by M. F. Moody
Fleming K, Ackerman A, Engelman D. The effect of point mutations on the free energy of transmembrane α-helix dimerization11Edited by M. F. Moody. Journal Of Molecular Biology 1997, 272: 266-275. PMID: 9299353, DOI: 10.1006/jmbi.1997.1236.Peer-Reviewed Original ResearchConceptsSodium dodecylsulfateVan der Waals interactionsAnalytical ultracentrifugationDer Waals interactionsFree energyMolecular association eventsEnergy of dimerizationOctyl etherWaals interactionsMolecular modelingRelative energy scaleDetergent environmentReversible associationEnergy differenceSedimentation equilibriumMonomersTransmembrane α-helicesNon-denaturing detergent solutionsDimer formationΑ-helixDimer stateAssociation eventsDetergent solutionDissociationHelix
1994
Specificity and promiscuity in membrane helix interactions
Lemmon M, Engelman D. Specificity and promiscuity in membrane helix interactions. Quarterly Reviews Of Biophysics 1994, 27: 157-218. PMID: 7984776, DOI: 10.1017/s0033583500004522.Peer-Reviewed Original ResearchConceptsIntegral membrane proteinsTransmembrane α-helicesMembrane proteinsΑ-helixMembrane protein foldingMembrane-spanning portionTransmembrane helix associationHelix-helix interactionsParticular helicesProtein foldingHelix associationHelix interactionsProsthetic groupLipid bilayersCharge-charge interactionsStereochemical fitFoldingProteinAccessible statesSpecificityOligomerizationInteractionPromiscuityHelixAssembly
1992
Thermodynamic measurements of the contributions of helix-connecting loops and of retinal to the stability of bacteriorhodopsin.
Kahn T, Sturtevant J, Engelman D. Thermodynamic measurements of the contributions of helix-connecting loops and of retinal to the stability of bacteriorhodopsin. Biochemistry 1992, 31: 8829-39. PMID: 1390670, DOI: 10.1021/bi00152a020.Peer-Reviewed Original Research
1989
Limitations of the lipid state hypothesis for atherosclerosis are revealed by X-ray diffraction measurements
Burks C, Hong S, Ho M, Engelman D. Limitations of the lipid state hypothesis for atherosclerosis are revealed by X-ray diffraction measurements. Atherosclerosis 1989, 77: 43-51. PMID: 2719761, DOI: 10.1016/0021-9150(89)90008-7.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
Identifying Nonpolar Transbilayer Helices in Amino Acid Sequences of Membrane Proteins
Engelman D, Steitz T, Goldman A. Identifying Nonpolar Transbilayer Helices in Amino Acid Sequences of Membrane Proteins. Annual Review Of Biophysics 1986, 15: 321-353. PMID: 3521657, DOI: 10.1146/annurev.bb.15.060186.001541.Peer-Reviewed Original Research
1983
Pair distribution functions of bacteriorhodopsin and rhodopsin in model bilayers
Pearson L, Chan S, Lewis B, Engelman D. Pair distribution functions of bacteriorhodopsin and rhodopsin in model bilayers. Biophysical Journal 1983, 43: 167-174. PMID: 6616005, PMCID: PMC1329246, DOI: 10.1016/s0006-3495(83)84337-9.Peer-Reviewed Original Research
1981
The spontaneous insertion of proteins into and across membranes: The helical hairpin hypothesis
Engelman D, Steitz T. The spontaneous insertion of proteins into and across membranes: The helical hairpin hypothesis. Cell 1981, 23: 411-422. PMID: 7471207, DOI: 10.1016/0092-8674(81)90136-7.Peer-Reviewed Original ResearchConceptsMembrane proteinsSecreted proteinsIntegral membrane proteinsHydrophobic leader peptideSecretion of proteinsHelical hairpinSpecific membrane receptorsPolypeptide sequenceSecond helixLeader peptideTransport proteinsLipid environmentTerminal helixN-terminusSpontaneous insertionMembrane receptorsHairpin structurePolypeptide structureProteinHelixHairpinHydrophobic interiorOnly alphaNonpolar sequencesHydrophobic portion