Molecular dynamics of proteins interacting with substrate or ligand: mitochondrial processing peptidase and FixL oxygen sensor

Abstract

I I Ovenvrew I I I II I I I I I I I I I The presenteddoctoralthesis includesfive publishedscientificarticlesand one manuscriptpreparedfor submission.All describestudieson threeproteinmodels.The four papersnumbered(1)- (4)inthelistofpublications,sharea commonobjectivee.i.observingand describingfunctionalproteindynamicsandconformationchangeinducedby ligandor substrate binding,andrepresentthemainresultofmyPhDwork. Thepapers(1)and(4)offerresultsof a projectfrommyhomelaboratoryattheInstitute ofMicrobiologyAS CR, LaboratoryforBiologyofSecondaryMetabolism,underthesupervisionof JiřÍ Janata, PhD. The projectis focusedon the protein-proteindynamicsinteractionof mitochondrialprocessingpeptidase(MPP) fromSaccharomycescerevisiaewithits preproteins substrates. The papers(2)and(3)describeresultsof a project,inwhichI haveparticipatedduring myMarieCuriefellowshipattheEcolePolytechnique(PalaiseauCedex,France),Laboratoryfor OpticsandBiosciences,in2004.Theprojectconcernsresearchon proteinstructuraldynamicsof theheme-basedoxygensensorFixLfromBradyrhizobiumjaponicum,inwhichoxygenbindingto the heme sensor domain inducesconformationchange,which regulatesthe activityof neighboringkinasedomain. ln bothprojects,analogyin methodicalapproach,i.e.seriesof molecularbiologyand...

I I Ovenvrew I I I II I I I I I I I I I The presenteddoctoralthesis includesfive publishedscientificarticlesand one manuscriptpreparedfor submission.All describestudieson threeproteinmodels.The four papersnumbered(1)- (4)inthelistofpublications,sharea commonobjectivee.i.observingand describingfunctionalproteindynamicsandconformationchangeinducedby ligandor substrate binding,andrepresentthemainresultofmyPhDwork. Thepapers(1)and(4)offerresultsof a projectfrommyhomelaboratoryattheInstitute ofMicrobiologyAS CR, LaboratoryforBiologyofSecondaryMetabolism,underthesupervisionof JiřÍ Janata, PhD. The projectis focusedon the protein-proteindynamicsinteractionof mitochondrialprocessingpeptidase(MPP) fromSaccharomycescerevisiaewithits preproteins substrates. The papers(2)and(3)describeresultsof a project,inwhichI haveparticipatedduring myMarieCuriefellowshipattheEcolePolytechnique(PalaiseauCedex,France),Laboratoryfor OpticsandBiosciences,in2004.Theprojectconcernsresearchon proteinstructuraldynamicsof theheme-basedoxygensensorFixLfromBradyrhizobiumjaponicum,inwhichoxygenbindingto the heme sensor domain inducesconformationchange,which regulatesthe activityof neighboringkinasedomain. ln bothprojects,analogyin methodicalapproach,i.e.seriesof molecularbiologyand...