2022
DARPP-32/protein phosphatase 1 regulates Rasgrp2 as a novel component of dopamine D1 receptor signaling in striatum
Kuroiwa M, Shuto T, Nagai T, Amano M, Kaibuchi K, Nairn A, Nishi A. DARPP-32/protein phosphatase 1 regulates Rasgrp2 as a novel component of dopamine D1 receptor signaling in striatum. Neurochemistry International 2022, 162: 105438. PMID: 36351540, DOI: 10.1016/j.neuint.2022.105438.Peer-Reviewed Original ResearchConceptsProtein phosphatase 1Phosphatase 1DARPP-32Receptor-induced phosphorylationPKA-dependent phosphorylationPKA/DARPPPP1 inhibitorPP1 substratesPP1 inhibitionPKA sitesRap1 activationOkadaic acidRASGRP2Novel componentRap1GAPPhosphorylationDARPP-32 knockout micePhospho-Thr34 DARPP-32Receptor activationPKAKnockout miceReceptor stimulationPP2A.Ser499Rap1Myosin light chain phosphatase catalytic subunit dephosphorylates cardiac myosin via mechanisms dependent and independent of the MYPT regulatory subunits
Lee E, Liu Z, Nguyen N, Nairn A, Chang AN. Myosin light chain phosphatase catalytic subunit dephosphorylates cardiac myosin via mechanisms dependent and independent of the MYPT regulatory subunits. Journal Of Biological Chemistry 2022, 298: 102296. PMID: 35872014, PMCID: PMC9418503, DOI: 10.1016/j.jbc.2022.102296.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCardiac MyosinsMiceMice, KnockoutMyosin-Light-Chain PhosphatasePhosphatesPhosphorylationProtein Phosphatase 1ConceptsMyosin light chain phosphataseRegulatory light chainRegulatory subunitCatalytic subunitPhosphatase catalytic subunitMain catalytic subunitSmooth muscle myosin light chain phosphataseNon-muscle cellsMuscle myosin light chain phosphataseMyosin regulatory light chainMyosin light chain kinaseLight chain kinasePP1cβTrimeric proteinConditional knockout miceLight chain phosphatasePhosphatase activitySubunitsPhosphate/Chain kinaseMuscle pathogenesisPhysiological regulationKnockout animalsMain isoformsProtein
2001
TARPP, a novel protein that accompanies TCR gene rearrangement and thymocyte education
Kisielow J, Nairn A, Karjalainen K. TARPP, a novel protein that accompanies TCR gene rearrangement and thymocyte education. European Journal Of Immunology 2001, 31: 1141-1149. PMID: 11298339, DOI: 10.1002/1521-4141(200104)31:4<1141::aid-immu1141>3.0.co;2-r.Peer-Reviewed Original ResearchAgingAmino Acid SequenceAnimalsAntibodiesBase SequenceCD3 ComplexCell DifferentiationCell LineageCells, CulturedCloning, MolecularDown-RegulationFlow CytometryGene Expression ProfilingGene Expression Regulation, DevelopmentalGene Rearrangement, T-LymphocyteMiceMice, Inbred C57BLMolecular Sequence DataMolecular WeightPhosphoproteinsProtein Phosphatase 1Receptors, Antigen, T-CellRNA, MessengerSignal TransductionThymus GlandProtein phosphatase 1 regulation by inhibitors and targeting subunits
Watanabe T, Huang H, Horiuchi A, da Cruze Silva E, Hsieh-Wilson L, Allen P, Shenolikar S, Greengard P, Nairn A. Protein phosphatase 1 regulation by inhibitors and targeting subunits. Proceedings Of The National Academy Of Sciences Of The United States Of America 2001, 98: 3080-3085. PMID: 11248035, PMCID: PMC30610, DOI: 10.1073/pnas.051003898.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsCell LineChromosomal Proteins, Non-HistoneDNA-Binding ProteinsDopamine and cAMP-Regulated Phosphoprotein 32Enzyme InhibitorsGene ExpressionHistone ChaperonesMicrofilament ProteinsMolecular Sequence DataMyelin Basic ProteinNerve Tissue ProteinsPhosphoprotein PhosphatasesPhosphoproteinsProtein Phosphatase 1ProteinsRabbitsRecombinant Fusion ProteinsSpodopteraSubstrate SpecificityTranscription FactorsConceptsProtein phosphatase 1Native protein phosphatase-1PP1 nuclear targeting subunitPhosphotyrosine-containing substratesInhibitor 2Protein phosphatase 1 regulationRecombinant protein phosphatase 1Sf9 insect cellsC-terminal sequencesLoss of interactionTargeting subunitPP1/Phosphatase 1Insect cellsResidues 274Inhibitor proteinRecombinant proteinsProtein inhibitorSubunitsEscherichia coliY272Corresponding regionPhosphorylase a.MutationsRegulationPhosphorylation of Protein Phosphatase Inhibitor-1 by Cdk5*
Bibb J, Nishi A, O'Callaghan J, Ule J, Lan M, Snyder G, Horiuchi A, Saito T, Hisanaga S, Czernik A, Nairn A, Greengard P. Phosphorylation of Protein Phosphatase Inhibitor-1 by Cdk5*. Journal Of Biological Chemistry 2001, 276: 14490-14497. PMID: 11278334, DOI: 10.1074/jbc.m007197200.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesBrainCalcineurinCarrier ProteinsCDC2 Protein KinaseCyclic AMPCyclic AMP-Dependent Protein KinasesCyclin-Dependent Kinase 5Cyclin-Dependent KinasesGlutamic AcidIntracellular Signaling Peptides and ProteinsKineticsMiceMice, Inbred C57BLMutagenesis, Site-DirectedN-MethylaspartatePhosphoprotein PhosphatasesPhosphorylationProlineProtein Phosphatase 1RabbitsRatsRecombinant ProteinsRNA-Binding ProteinsSerineTime FactorsConceptsProtein phosphatase inhibitor-1Protein phosphatase 1Phosphatase inhibitor-1Ser-67Protein kinasePhosphatase 1CAMP-dependent protein kinase resultsSelective protein kinase inhibitorsCAMP-dependent protein kinaseProtein phosphatase 2AProline-directed kinasesMitogen-activated protein kinaseInhibitor-1Protein kinase resultsSignal transduction eventsPhosphorylation state-specific antibodiesCAMP-dependent protein kinase activationState of phosphorylationProtein kinase inhibitorsProtein kinase activationPhosphatase 2AThr-35Protein phosphatasePhosphorylation sitesGlutamate-dependent regulation
2000
Letter to the Editor: Backbone 1H, 15N, and 13C resonance assignments of inhibitor-2 – a protein inhibitor of protein phosphatase-1
Huang H, Chen Y, Tsai L, Wang H, Lin F, Horiuchi A, Greengard P, Nairn A, Shiao M, Lin T. Letter to the Editor: Backbone 1H, 15N, and 13C resonance assignments of inhibitor-2 – a protein inhibitor of protein phosphatase-1. Journal Of Biomolecular NMR 2000, 17: 359-360. PMID: 11014604, DOI: 10.1023/a:1008355428294.Peer-Reviewed Original ResearchRegulation of Phosphorylation of the GluR1 AMPA Receptor in the Neostriatum by Dopamine and Psychostimulants In Vivo
Snyder G, Allen P, Fienberg A, Valle C, Huganir R, Nairn A, Greengard P. Regulation of Phosphorylation of the GluR1 AMPA Receptor in the Neostriatum by Dopamine and Psychostimulants In Vivo. Journal Of Neuroscience 2000, 20: 4480-4488. PMID: 10844017, PMCID: PMC6772453, DOI: 10.1523/jneurosci.20-12-04480.2000.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBenzazepinesCentral Nervous System StimulantsDopamineDopamine and cAMP-Regulated Phosphoprotein 32In Vitro TechniquesMaleMethamphetamineMiceMice, Inbred C57BLMice, KnockoutMicrowavesNeostriatumNerve Tissue ProteinsOkadaic AcidPhosphoprotein PhosphatasesPhosphoproteinsPhosphorylationProtein Phosphatase 1Protein Phosphatase 2Receptors, AMPAReceptors, Dopamine D1Receptors, Dopamine D2Recombinant Fusion ProteinsSerineConceptsCAMP-dependent protein kinaseProtein phosphatase 2A.AMPA-type glutamate receptorsCalmodulin-dependent kinase IICalcium/calmodulin-dependent kinase IIRegulation of phosphorylationProtein kinase CPhosphatase 2A.Protein kinaseKinase IIPhosphorylation of GluR1Kinase CGluR1 AMPA receptorsPhosphorylationCellular effectorsGlutamate receptorsDARPP-32Physiological activityAMPA receptorsPsychostimulant cocaineChannel conductanceReceptorsD1-type dopamine receptorsActivationVivoCellular Mechanisms Regulating Protein Phosphatase-1 A KEY FUNCTIONAL INTERACTION BETWEEN INHIBITOR-2 AND THE TYPE 1 PROTEIN PHOSPHATASE CATALYTIC SUBUNIT*
Frederick D, Huang H, Yang J, Helps N, Cohen P, Nairn A, DePaoli-Roach A, Tatchell K, Connor J, Shenolikar S. Cellular Mechanisms Regulating Protein Phosphatase-1 A KEY FUNCTIONAL INTERACTION BETWEEN INHIBITOR-2 AND THE TYPE 1 PROTEIN PHOSPHATASE CATALYTIC SUBUNIT*. Journal Of Biological Chemistry 2000, 275: 18670-18675. PMID: 10748125, DOI: 10.1074/jbc.m909312199.Peer-Reviewed Original ResearchConceptsPP1 catalytic subunitCatalytic subunitType 1 protein phosphatase catalytic subunitAmino acidsProtein phosphatase catalytic subunitN-terminusProtein serine/threonineN-terminal 35 amino acidsInhibitor 2Phosphatase catalytic subunitTwo-hybrid analysisNovel regulatory interactionsProtein phosphatase 1Serine/threoninePull-down assaysSite-directed mutagenesisN-terminal sequencePP1 mutantsKey functional interactionsPP1 inhibitorPP1 enzymesPP1 inhibitionPhosphatase 1Regulatory interactionsSaccharomyces cerevisiaeRegulation of protein phosphatase-1
Aggen J, Nairn A, Chamberlin R. Regulation of protein phosphatase-1. Cell Chemical Biology 2000, 7: r13-r23. PMID: 10662690, DOI: 10.1016/s1074-5521(00)00069-7.Peer-Reviewed Original Research
1999
Regulation of Neurabin I Interaction with Protein Phosphatase 1 by Phosphorylation †
McAvoy T, Allen P, Obaishi H, Nakanishi H, Takai Y, Greengard P, Nairn A, Hemmings H. Regulation of Neurabin I Interaction with Protein Phosphatase 1 by Phosphorylation †. Biochemistry 1999, 38: 12943-12949. PMID: 10504266, DOI: 10.1021/bi991227d.Peer-Reviewed Original ResearchConceptsProtein phosphatase 1Neurabin IPP1 activityPhosphatase 1Two-hybrid interaction analysisActin-binding proteinsCo-immunoprecipitation experimentsMimic phosphorylationSerine 461Phosphorylated residuesGlutathione S-transferaseOverlay assaysFusion proteinSignaling mechanismGamma isoformsCAMP pathwayPhosphorylationS-transferaseProteinTryptic digestPKARegulationHPLC-MS analysisInteraction analysisS461Beyond the Dopamine Receptor the DARPP-32/Protein Phosphatase-1 Cascade
Greengard P, Allen P, Nairn A. Beyond the Dopamine Receptor the DARPP-32/Protein Phosphatase-1 Cascade. Neuron 1999, 23: 435-447. PMID: 10433257, DOI: 10.1016/s0896-6273(00)80798-9.Peer-Reviewed Original ResearchRole of Calcineurin and Protein Phosphatase‐2A in the Regulation of DARPP‐32 Dephosphorylation in Neostriatal Neurons
Nishi A, Snyder G, Nairn A, Greengard P. Role of Calcineurin and Protein Phosphatase‐2A in the Regulation of DARPP‐32 Dephosphorylation in Neostriatal Neurons. Journal Of Neurochemistry 1999, 72: 2015-2021. PMID: 10217279, DOI: 10.1046/j.1471-4159.1999.0722015.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCalcineurinCalcineurin InhibitorsCyclosporineDopamine and cAMP-Regulated Phosphoprotein 32Drug CombinationsDrug SynergismEnzyme InhibitorsIn Vitro TechniquesMaleMarine ToxinsMiceMice, Inbred C57BLNeostriatumNerve Tissue ProteinsNeuronsOkadaic AcidOxazolesPhosphoprotein PhosphatasesPhosphoproteinsPhosphorylationProtein Phosphatase 1Protein Phosphatase 2ConceptsProtein phosphatase 1Protein phosphatase 2AOkadaic acidPhosphorylated DARPP-32DARPP-32 phosphorylationPhosphatase 2APP-2ADARPP-32Cyclic AMP-dependent protein kinaseAMP-dependent protein kinasePP-2A activityRole of calcineurinPhosphatase 1Calyculin AMouse neostriatal slicesProtein kinaseAction of cyclosporinDependent activationCalcineurinPresence of cyclosporinPhosphorylationDephosphorylationSynergistic increaseThr34Potent inhibitorCharacterization of the Neuronal Targeting Protein Spinophilin and Its Interactions with Protein Phosphatase-1 †
Hsieh-Wilson L, Allen P, Watanabe T, Nairn A, Greengard P. Characterization of the Neuronal Targeting Protein Spinophilin and Its Interactions with Protein Phosphatase-1 †. Biochemistry 1999, 38: 4365-4373. PMID: 10194355, DOI: 10.1021/bi982900m.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesCell LineDopamine and cAMP-Regulated Phosphoprotein 32HumansMicrofilament ProteinsNerve Tissue ProteinsNeuronsPeptide FragmentsPeptidesPhosphoprotein PhosphatasesPhosphoproteinsProtein Phosphatase 1Protein Structure, TertiaryProteinsRabbitsSequence Homology, Amino AcidConceptsProtein phosphatase 1Ability of spinophilinPhosphatase 1PP1 regulatory subunitClass of proteinsAmino acids 447Cell cycle progressionPP1 activityPentapeptide motifRegulatory subunitCellular processesDeletion analysisDistinct subdomainsSubstrate specificityBinding domainsPhysiological substratesMutational analysisNeuronal proteinsProtein spinophilinCompetition binding assaysHigh-affinity binding domainsDARPP-32SpinophilinPostsynaptic densityBinding assaysCharacterization of the Inhibition of Protein Phosphatase-1 by DARPP-32 and Inhibitor-2*
Huang H, Horiuchi A, Watanabe T, Shih S, Tsay H, Li H, Greengard P, Nairn A. Characterization of the Inhibition of Protein Phosphatase-1 by DARPP-32 and Inhibitor-2*. Journal Of Biological Chemistry 1999, 274: 7870-7878. PMID: 10075680, DOI: 10.1074/jbc.274.12.7870.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAmino Acid SubstitutionAnimalsCatalytic DomainDopamine and cAMP-Regulated Phosphoprotein 32Enzyme InhibitorsHumansMolecular Sequence DataMolecular WeightMuscle ProteinsMutagenesis, Site-DirectedNerve Tissue ProteinsPhosphoprotein PhosphatasesPhosphoproteinsPhosphorylationProtein Phosphatase 1ProteinsRabbitsSerineThreonineThe design, synthesis, and biological evaluation of analogues of the serine-threonine protein phosphatase 1 and 2A selective inhibitor microcystin LA: rational modifications imparting PP1 selectivity
Aggen J, Humphrey J, Gauss C, Huang H, Nairn A, Chamberlin A. The design, synthesis, and biological evaluation of analogues of the serine-threonine protein phosphatase 1 and 2A selective inhibitor microcystin LA: rational modifications imparting PP1 selectivity. Bioorganic & Medicinal Chemistry 1999, 7: 543-564. PMID: 10220039, DOI: 10.1016/s0968-0896(98)00254-5.Peer-Reviewed Original ResearchConceptsPP1 selectivityProtein phosphatase 1Serine-threonine proteinMicrocystin-LAFirst-generation analogsSmall molecule inhibitorsPhosphatase 1Observed selectivityBiological evaluationMolecular modeling analysisMolecule inhibitorsRational modificationSelectivityStructural modificationsSynthesisAnaloguesInhibition assaysPP1MicrocystinsProteinLaModificationAssaysInhibitorsProtein phosphatase 1 modulation of neostriatal AMPA channels: regulation by DARPP–32 and spinophilin
Yan Z, Hsieh–Wilson L, Feng J, Tomizawa K, Allen P, Fienberg A, Nairn A, Greengard P. Protein phosphatase 1 modulation of neostriatal AMPA channels: regulation by DARPP–32 and spinophilin. Nature Neuroscience 1999, 2: 13-17. PMID: 10195174, DOI: 10.1038/4516.Peer-Reviewed Original ResearchConceptsPP-1Protein phosphatase 1DARPP-32Distinct molecular mechanismsPhosphatase 1Molecular mechanismsAMPA receptor-mediated synaptic transmissionPostsynaptic densityAMPA channelsRegulationSynaptic plasticitySpinophilinNeostriatal neuronsPlasticityPhysiological evidenceGlutamate channelsSynaptic transmissionAMPA receptorsPhosphoproteinProteinMechanismBindingActivityModulationCatalytic activity
1998
The DARPP-32/protein phosphatase-1 cascade: a model for signal integration1Published on the World Wide Web on 22 January 1998.1
Greengard P, Nairn A, Girault J, Ouimet C, Snyder G, Fisone G, Allen P, Fienberg A, Nishi A. The DARPP-32/protein phosphatase-1 cascade: a model for signal integration1Published on the World Wide Web on 22 January 1998.1. Brain Research Reviews 1998, 26: 274-284. PMID: 9651542, DOI: 10.1016/s0165-0173(97)00057-x.Peer-Reviewed Original ResearchIsolation and Characterization of PNUTS, a Putative Protein Phosphatase 1 Nuclear Targeting Subunit*
Allen P, Kwon Y, Nairn A, Greengard P. Isolation and Characterization of PNUTS, a Putative Protein Phosphatase 1 Nuclear Targeting Subunit*. Journal Of Biological Chemistry 1998, 273: 4089-4095. PMID: 9461602, DOI: 10.1074/jbc.273.7.4089.Peer-Reviewed Original ResearchConceptsPhosphatase 1 nuclear targeting subunitProtein phosphatase 1Targeting subunitPP1 catalytic activityMammalian cell lysatesTwo-hybrid assayPP1 functionsNuclear functionsNuclear compartmentalizationNovel proteinPhosphatase 1Subcellular localizationCell physiologyCell lysatesCell nucleiSubunitsExogenous substratesInitial characterizationProteinStable complexesPotent modulationChromatinCloningMitosisCompartmentalization
1997
The Regulation of Glycogen Synthase by Protein Phosphatase 1 in 3T3-L1 Adipocytes EVIDENCE FOR A POTENTIAL ROLE FOR DARPP-32 IN INSULIN ACTION*
Brady M, Nairn A, Saltiel A. The Regulation of Glycogen Synthase by Protein Phosphatase 1 in 3T3-L1 Adipocytes EVIDENCE FOR A POTENTIAL ROLE FOR DARPP-32 IN INSULIN ACTION*. Journal Of Biological Chemistry 1997, 272: 29698-29703. PMID: 9368038, DOI: 10.1074/jbc.272.47.29698.Peer-Reviewed Original ResearchConceptsProtein phosphatase 1PP1 activityGlycogen synthasePhosphatase 1DARPP-32Glycogen synthesisPrimary rat adipocytesPP1 proteinProtein DARPP-32Glycogen synthase activityKinetic lagSynthase activityGlycogen accumulationDifferentiationRat adipocytesAdipocytesFibroblast extractsAdipocyte cellsTotal glycogen synthase activitySynthaseInsulin actionPotential roleSpecific activityParticulate fractionInsulin pretreatmentSite-directed mutagenesis of amino acid residues of protein phosphatase 1 involved in catalysis and inhibitor binding
Huang H, Horiuchi A, Goldberg J, Greengard P, Nairn A. Site-directed mutagenesis of amino acid residues of protein phosphatase 1 involved in catalysis and inhibitor binding. Proceedings Of The National Academy Of Sciences Of The United States Of America 1997, 94: 3530-3535. PMID: 9108010, PMCID: PMC20473, DOI: 10.1073/pnas.94.8.3530.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesEnzyme InhibitorsMutagenesis, Site-DirectedMutationPhosphoprotein PhosphatasesProtein BindingProtein Phosphatase 1RabbitsConceptsProtein phosphatase 1Site-directed mutagenesisActive site residuesOkadaic acidPhosphatase 1Calyculin AMammalian protein phosphatase 1PP-1Site residuesEnzyme activityMutation of residuesAmino acid residuesMechanism of catalysisActive siteInhibitor bindingAcid residuesInhibitory proteinMutationsResiduesMutagenesisDivalent cationsToxinY272Large lossesR221