2011
Inhibition of Insulin Signaling in Endothelial Cells by Protein Kinase C-induced Phosphorylation of p85 Subunit of Phosphatidylinositol 3-Kinase (PI3K)*
Maeno Y, Li Q, Park K, Rask-Madsen C, Gao B, Matsumoto M, Liu Y, Wu I, White M, Feener E, King G. Inhibition of Insulin Signaling in Endothelial Cells by Protein Kinase C-induced Phosphorylation of p85 Subunit of Phosphatidylinositol 3-Kinase (PI3K)*. Journal Of Biological Chemistry 2011, 287: 4518-4530. PMID: 22158866, PMCID: PMC3281670, DOI: 10.1074/jbc.m111.286591.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCattleCells, CulturedClass Ia Phosphatidylinositol 3-KinaseEndothelial CellsEnzyme ActivationInsulinInsulin Receptor Substrate ProteinsMetabolic DiseasesNitric Oxide Synthase Type IIIPhosphorylationProtein Kinase CProto-Oncogene Proteins c-aktSignal TransductionVascular Endothelial Growth Factor AConceptsP85/PI3KPI3KPKC activationInsulin receptor substrateProtein kinase C activationEndothelial nitric oxide synthaseProtein kinase CAkt/endothelial nitric oxide synthaseKinase C activationPI3K/Akt pathwayP85 subunitDeletion mutantsGeneral activatorTyrosine phosphorylationReceptor substrateEndothelial cellsInsulin signalingInsulin activationKinase CAkt pathwayPhosphorylationC activationThr-86SignalingIRS1
2000
Tyrosine Dephosphorylation and Deactivation of Insulin Receptor Substrate-1 by Protein-tyrosine Phosphatase 1B POSSIBLE FACILITATION BY THE FORMATION OF A TERNARY COMPLEX WITH THE GRB2 ADAPTOR PROTEIN*
Goldstein B, Bittner-Kowalczyk A, White M, Harbeck M. Tyrosine Dephosphorylation and Deactivation of Insulin Receptor Substrate-1 by Protein-tyrosine Phosphatase 1B POSSIBLE FACILITATION BY THE FORMATION OF A TERNARY COMPLEX WITH THE GRB2 ADAPTOR PROTEIN*. Journal Of Biological Chemistry 2000, 275: 4283-4289. PMID: 10660596, DOI: 10.1074/jbc.275.6.4283.Peer-Reviewed Original ResearchConceptsInsulin receptor substrate-1Receptor substrate-1Tyrosine dephosphorylationAdaptor proteinSubstrate-1Tyrosine-phosphorylated IRS-1Src homology 2 domainSteady-state tyrosine phosphorylationAdaptor protein Grb2Grb2 adaptor proteinStable protein complexesProtein tyrosine phosphataseNovel molecular interactionInsulin signal transductionMolecular interactionsProtein Grb2Protein complexesP85 subunitSHP-2Overlay blotsP-nitrophenyl phosphateSignal transductionTyrosine phosphorylationPhosphorylation stateInactive PTP1B
1999
Endothelin-1 modulates insulin signaling through phosphatidylinositol 3-kinase pathway in vascular smooth muscle cells.
Jiang Z, Zhou Q, Chatterjee A, Feener E, Myers M, White M, King G. Endothelin-1 modulates insulin signaling through phosphatidylinositol 3-kinase pathway in vascular smooth muscle cells. Diabetes 1999, 48: 1120-1130. PMID: 10331419, DOI: 10.2337/diabetes.48.5.1120.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsEndothelin Receptor AntagonistsEndothelin-1Enzyme InhibitorsGTP-Binding ProteinsHumansInsulinInsulin Receptor Substrate ProteinsIntracellular Signaling Peptides and ProteinsMaleMuscle, Smooth, VascularPeptides, CyclicPertussis ToxinPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsPhosphoproteinsPhosphoserineProtein Kinase CRatsRats, ZuckerSignal TransductionTetradecanoylphorbol AcetateVirulence Factors, BordetellaConceptsInsulin-stimulated phosphatidylinositolProtein kinase CIRS-2P85 subunitSerine phosphorylationSmooth muscle cellsInsulin receptor beta subunitInsulin-induced phosphatidylinositolInsulin receptor substrateReceptor beta subunitMuscle cellsTreatment of cellsArterial smooth muscle cellsReceptor substratePretreatment of cellsVascular smooth muscle cellsBeta subunitKinase CPhosphatidylinositolIndependent pathwaysSpecific inhibitorET-1SubunitsPhosphorylationPathway
1997
The IRS-pathway operates distinctively from the Stat-pathway in hematopoietic cells and transduces common and distinct signals during engagement of the insulin or interferon-alpha receptors.
Uddin S, Fish E, Sher D, Gardziola C, Colamonici O, Kellum M, Pitha P, White M, Platanias L. The IRS-pathway operates distinctively from the Stat-pathway in hematopoietic cells and transduces common and distinct signals during engagement of the insulin or interferon-alpha receptors. Blood 1997, 90: 2574-82. PMID: 9326223.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBurkitt LymphomaDNA-Binding ProteinsHematopoietic Stem CellsHumansInsulinInsulin Receptor Substrate ProteinsInsulin-Like Growth Factor IInterferon-alphaIntracellular Signaling Peptides and ProteinsLeukemia, Myelomonocytic, AcuteLeukemia-Lymphoma, Adult T-CellMiceMultiple MyelomaNeoplasm ProteinsPhosphoproteinsReceptor, InsulinReceptor, Interferon alpha-betaReceptors, InterferonSignal TransductionSrc Homology DomainsSTAT1 Transcription FactorSTAT2 Transcription FactorSTAT3 Transcription FactorTrans-ActivatorsTumor Cells, CulturedConceptsSTAT pathwaySH2 domainHematopoietic cellsInsulin/insulin-like growth factorIRS pathwayDistinct downstream signalsTHP-1 cellsIRS-1 functionInsulin/IGFActivator of transcriptionInsulin receptor substrateDistinct signalsIFN-alphaHuman myelomonocytic cellsDocking proteinMouse myeloid cellsGrb-2P85 subunitInterferon alpha receptorSTAT-2Receptor substrateVesicular stomatitis virusSignal transducerIRS-2IRS-1Activation of the phosphatidylinositol 3-kinase serine kinase by IFN-alpha.
Uddin S, Fish E, Sher D, Gardziola C, White M, Platanias L. Activation of the phosphatidylinositol 3-kinase serine kinase by IFN-alpha. The Journal Of Immunology 1997, 158: 2390-7. PMID: 9036989, DOI: 10.4049/jimmunol.158.5.2390.Peer-Reviewed Original ResearchConceptsSerine kinaseTreatment of cellsIRS-1Kinase assaysSerine kinase activityDual-specificity enzymeP85 regulatory subunitReceptor-generated signalsIRS-1 proteinJak-1 kinasesIFN-alpha-induced activationProtein associatesP85 subunitPhosphoaminoacid analysisRegulatory subunitSerine residuesSerine phosphorylationTyrosine phosphorylationTyk-2STAT-2MAP kinaseKinase activityPretreatment of cellsInhibitor wortmanninPhosphatidylinositol
1993
Insulin-Stimulated Oocyte Maturation Requires Insulin Receptor Substrate 1 and Interaction with the SH2 Domains of Phosphatidylinositol 3-Kinase
Chuang L, Myers M, Backer J, Shoelson S, White M, Birnbaum M, Kahin C. Insulin-Stimulated Oocyte Maturation Requires Insulin Receptor Substrate 1 and Interaction with the SH2 Domains of Phosphatidylinositol 3-Kinase. Molecular And Cellular Biology 1993, 13: 6653-6660. DOI: 10.1128/mcb.13.11.6653-6660.1993.Peer-Reviewed Original ResearchSrc homology 2 domainSrc homology 2PtdIns 3-kinaseSrc homology 2 domains of p85Glutathione S-transferase fusion proteinS-transferase fusion proteinDomains of p85IRS-1Ras-GAPP85 subunit of PtdIns 3-kinaseFusion proteinActivation of PtdIns 3-kinasePtdIns 3-kinase activitySubstrate 1Phosphorylation of IRS-1IRS-1 associationInsulin receptor substrate 1Insulin-stimulated phosphatidylinositolIRS-1 proteinPhosphorylated IRS-1Progesterone-induced oocyte maturationP85 subunitOocyte maturationInsulin signalingResponse to hormonal stimulation