32Molecular simulationDatabase analysisNew knowledge ofstructure-activity relationship Laboratory of FunctionalMolecular DesignKojiUMEZAWAAssistantProfessor,Ph.D.Bioinformatics,Biophysics, Molecular Dynamics Simulation, Molecular Modeling, Computational Structural BiologyMoleculehasalotofpossibleconformationsatroomtemperature.Thereshouldbeabiologicallyactiveconformation.Theactiveconformationisinterestingandprovidesakeytointerpretthebiologicalfunction.However,itisdifficulttocharacterizethatconformation.Then,wehaveusedmoleculardynamicssimulationanddatabaseanalysistofigureouttherelationshipofmolecularconformationanddynamicswiththebiologicalactivitysuchasproteinfolding,ligandrecognition,post-translationalmodificationeffects,andligand-association/dissociationcontrol.Ourcurrenttopicsdescribedbelowhavebeenstudied.Free energy calculation and sampling conformational ensemble for protein folding and protein-ligand bindingCDRelationship between structural information and function has been explored computationally.We have developed molecular modeling and programing to study ligand-binding mechanism.Biotechnology DivisionSearching new ligand-binding site from database based on similarity of local 3D structureDeveloping coarse-grained model of biomolecule to study effects of post-translational modification (e.g. phosphorylation) on intermolecular interactionMoleculeActivityBComputationalBiologyStructural•theoretical models•dynamics, flexibility•solvation•binding partner•active conformation•affinity, kinetics …ーFunction ーーStructure ーUnderstandingligand-binding mechanismBindingprocess・Molecular modeling・ProgramingIn silico studymodification?signaling?Laboratory of Molecular BiotechnologyTasuku OGITAAssistant Professor, Ph.D.Keywords・Food immunology・Functional food science・Intestinal microbiota・Probiotics・Fermented foodItisthoughtthatexchangeofintestinalmicrobiotaactsasakeyfactorinhealthmaintenanceandpromotion.Theintestinalmicrobiotawasthoughttobeakeyfactorrelatedtothebioregulatoryfunctionoffood.Hence,wefocusedonidentifyingfoodcontributingtohealthmaintenanceandpromotionbystudyingthechangeinintestinalmicrobiotaviaintakeoffood.Effect of functional food on intestinal microbiotaABCDABCEvaluationofthebioregulatoryfunctionoffoodtoelucidatethemechanismunderlyingthisfunction.Hypoxia cell culture system (A)Analysis of intestinal microbiota by DGGE (B)Biotechnology DivisionImmunomodulatory function of probiotics(A)(B)Analysis of immune cellAnalysis of intestinal microbiota Immunohistological analysisAdipose tissueIntestinal tissueTo elucidate the mechanism underlying the bioregulatory function of foodEvaluation of bioregulatory function in in vitro and in vivo
元のページ ../index.html#36