2021
Pharmacological inhibition of PI5P4Kα/β disrupts cell energy metabolism and selectively kills p53-null tumor cells
Chen S, Tjin C, Gao X, Xue Y, Jiao H, Zhang R, Wu M, He Z, Ellman J, Ha Y. Pharmacological inhibition of PI5P4Kα/β disrupts cell energy metabolism and selectively kills p53-null tumor cells. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2002486118. PMID: 34001596, PMCID: PMC8166193, DOI: 10.1073/pnas.2002486118.Peer-Reviewed Original ResearchMeSH KeywordsAMP-Activated Protein Kinase KinasesAnimalsEnergy MetabolismHumansInsulinInsulin Receptor Substrate ProteinsMechanistic Target of Rapamycin Complex 1MiceMuscle Fibers, SkeletalNeoplasmsPhosphorylationPhosphotransferases (Alcohol Group Acceptor)Ribosomal Protein S6 Kinases, 70-kDaSignal TransductionSmall Molecule LibrariesTumor Suppressor Protein p53ConceptsP53-null tumor cellsMost human cancer cellsCell energy homeostasisCell energy metabolismTumor suppressor genePI5P4KHuman cancer cellsGenetic experimentsDifferentiated myotubesAMPK activationStructural basisKinase activityEnergy stressMetabolic regulationSuppressor geneFunction mutationsLate-onset tumorsSubstrate loopP53 tumor suppressor geneChemical probesPI3KCell typesExquisite specificityEnergy metabolismTumor cells
2016
Mechanism of substrate specificity of phosphatidylinositol phosphate kinases
Muftuoglu Y, Xue Y, Gao X, Wu D, Ha Y. Mechanism of substrate specificity of phosphatidylinositol phosphate kinases. Proceedings Of The National Academy Of Sciences Of The United States Of America 2016, 113: 8711-8716. PMID: 27439870, PMCID: PMC4978281, DOI: 10.1073/pnas.1522112113.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesCrystallography, X-RayModels, MolecularPhosphatidylinositol PhosphatesPhosphatidylinositolsPhosphorylationPhosphotransferases (Alcohol Group Acceptor)Protein BindingProtein DomainsSubstrate SpecificityZebrafish ProteinsConceptsPhosphatidylinositol phosphate kinaseKinase familySubstrate specificityPhosphate kinasePhosphatidylinositol phosphate kinase (PIPK) familyZebrafish type IMembrane trafficking processesExquisite substrate specificityType III kinaseEukaryotic cellsInositol ringPhosphorylation resultsSubstrate recognitionTrafficking processesSpecificity loopPhosphatidylinositol derivativesBiological functionsPhosphatidylinositol 4PhosphatidylinositolKinaseStructural motifsType IBisphosphateLoop functionsComplex patterns
2015
Resolution of structure of PIP5K1A reveals molecular mechanism for its regulation by dimerization and dishevelled
Hu J, Yuan Q, Kang X, Qin Y, Li L, Ha Y, Wu D. Resolution of structure of PIP5K1A reveals molecular mechanism for its regulation by dimerization and dishevelled. Nature Communications 2015, 6: 8205. PMID: 26365782, PMCID: PMC4570271, DOI: 10.1038/ncomms9205.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAnimalsBinding SitesCalorimetryCatalytic DomainCircular DichroismCrystallizationCrystallography, X-RayDimerizationDishevelled ProteinsHEK293 CellsHumansPhosphatidylinositol 4,5-DiphosphatePhosphatidylinositol PhosphatesPhosphoproteinsPhosphorylationPhosphotransferases (Alcohol Group Acceptor)Protein Structure, TertiaryZebrafishConceptsSubstrate-binding siteLipid kinasesDIX domainCellular functionsCatalytic domainPhosphate kinaseÅ resolutionMutagenesis studiesRegulatory mechanismsMolecular mechanismsCatalytic activityPIP5K1AHead groupsCrystal structureSide dimerKinaseWntStructural informationRegulationDimerizationMoleculesResolution of structuresImportant rolePhosphatidylinositolType I