2014
Overproduction and biophysical characterization of human HSP70 proteins
Boswell-Casteel R, Johnson J, Duggan K, Tsutsui Y, Hays F. Overproduction and biophysical characterization of human HSP70 proteins. Protein Expression And Purification 2014, 106: 57-65. PMID: 25266791, PMCID: PMC4248018, DOI: 10.1016/j.pep.2014.09.013.Peer-Reviewed Original ResearchConceptsHuman HSP70 proteinHeat shock proteinsResponse pathwaysHSP70 proteinBiophysical characterizationFacilitate protein foldingVital cellular functionsInitial biophysical characterizationProtein-protein interactionsFuture biochemical studiesHeterologous overexpressionHSP functionCellular functionsProtein functionProtein foldingHSP70 familyFunctional characterizationConformational rearrangementsShock proteinsChemical stressorsHuman Hsp70HSP proteinsDownstream investigationsBiochemical studiesEscherichia coli
2012
Folding mechanism of the metastable serpin α1-antitrypsin
Tsutsui Y, Dela Cruz R, Wintrode P. Folding mechanism of the metastable serpin α1-antitrypsin. Proceedings Of The National Academy Of Sciences Of The United States Of America 2012, 109: 4467-4472. PMID: 22392975, PMCID: PMC3311335, DOI: 10.1073/pnas.1109125109.Peer-Reviewed Original Research
2009
Local and Global Effects of a Cavity Filling Mutation in a Metastable Serpin
Sengupta T, Tsutsui Y, Wintrode P. Local and Global Effects of a Cavity Filling Mutation in a Metastable Serpin. Biochemistry 2009, 48: 8233-8240. PMID: 19624115, PMCID: PMC2746415, DOI: 10.1021/bi900342d.Peer-Reviewed Original Research
2007
Cooperative Unfolding of a Metastable Serpin to a Molten Globule Suggests a Link Between Functional and Folding Energy Landscapes
Tsutsui Y, Wintrode P. Cooperative Unfolding of a Metastable Serpin to a Molten Globule Suggests a Link Between Functional and Folding Energy Landscapes. Journal Of Molecular Biology 2007, 371: 245-255. PMID: 17568610, DOI: 10.1016/j.jmb.2007.05.039.Peer-Reviewed Original ResearchConceptsMutagenesis studiesEquilibrium unfoldingMolten globuleCooperative structural unitDramatic conformational changeMultiple structural domainsNumerous mutagenesis studiesExchange mass spectrometryStable native stateNon-cooperative transitionPrevious mutagenesis studiesMolten globule formHydrogen-deuterium exchangeEquilibrium molten globuleFunctional intermediatesProtease-serpin complexesStructural domainsTarget proteasesConformational changesMetastable SerpinNative stateEquilibrium intermediatesCooperative unfoldingUnfolded stateGlobule form