2012
Regulation of insulin sensitivity by serine/threonine phosphorylation of insulin receptor substrate proteins IRS1 and IRS2
Copps K, White M. Regulation of insulin sensitivity by serine/threonine phosphorylation of insulin receptor substrate proteins IRS1 and IRS2. Diabetologia 2012, 55: 2565-2582. PMID: 22869320, PMCID: PMC4011499, DOI: 10.1007/s00125-012-2644-8.Peer-Reviewed Original ResearchConceptsInsulin receptor substrateT phosphorylationReceptor substrateSerine/threonine residuesSerine/threonine phosphorylationInsulin receptor tyrosine kinaseInsulin-stimulated kinasesReceptor tyrosine kinasesThreonine phosphorylationThreonine residuesNegative regulationTyrosine kinasePhosphorylationCultured cellsKinaseMetabolic diseasesIRS2IRS1Hormonal controlKey targetAltered patternTail regionComplex mechanismsRegulationDysregulation
2007
Phosphorylation of Irs1 at SER-522 Inhibits Insulin Signaling
Giraud J, Haas M, Feener E, Copps K, Dong X, Dunn S, White M. Phosphorylation of Irs1 at SER-522 Inhibits Insulin Signaling. Endocrinology 2007, 21: 2294-2302. PMID: 17579213, DOI: 10.1210/me.2007-0159.Peer-Reviewed Original ResearchConceptsTyrosine phosphorylationInsulin-stimulated tyrosine phosphorylationInsulin-stimulated IRS1 tyrosine phosphorylationIRS1 tyrosine phosphorylationInsulin-stimulated phosphorylationPhosphorylation of IRS1Threonine residuesMultisite phosphorylationPhosphorylation sitesPhosphoserine antibodyInhibits InsulinL6 myoblastsPhosphorylationCultured cellsIRS1Akt expressionPhosphatidylinositolFunctional effectsMass spectrometryPD98059WortmanninMyoblastsMyotubesRNASerine
2004
Disruption of the SH2-B Gene Causes Age-Dependent Insulin Resistance and Glucose Intolerance
Duan C, Yang H, White M, Rui L. Disruption of the SH2-B Gene Causes Age-Dependent Insulin Resistance and Glucose Intolerance. Molecular And Cellular Biology 2004, 24: 7435-7443. PMID: 15314154, PMCID: PMC506995, DOI: 10.1128/mcb.24.17.7435-7443.2004.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAdipose TissueAgingAnimalsBlood GlucoseCarrier ProteinsCell LineDietary FatsGlucose IntoleranceHomeostasisHumansInsulinInsulin Receptor Substrate ProteinsInsulin ResistanceIntracellular Signaling Peptides and ProteinsIslets of LangerhansLiverMaleMiceMice, Inbred StrainsMice, KnockoutMitogen-Activated Protein KinasesMuscle, SkeletalPhosphatidylinositol 3-KinasesPhosphoproteinsProtein Serine-Threonine KinasesProto-Oncogene ProteinsProto-Oncogene Proteins c-aktReceptor, InsulinSignal TransductionConceptsSrc homology 2Insulin receptor substrate-1Insulin receptor activationInsulin receptorTyrosine phosphorylationSH2 domain-dependent mannerPleckstrin homology domain-containing adaptor proteinDomain-containing adaptor proteinDomain-dependent mannerReceptor substrate-1Skeletal muscleSH2 domainHomology 2Adaptor proteinReceptor activationSubstrate-1Physiological roleCultured cellsGlucose homeostasisERK1/2 pathwayDependent insulin resistancePhysiological enhancerSystemic deletionPhosphorylationIRS2
2001
Insulin/IGF-1 and TNF-α stimulate phosphorylation of IRS-1 at inhibitory Ser307 via distinct pathways
Rui L, Aguirre V, Kim J, Shulman G, Lee A, Corbould A, Dunaif A, White M. Insulin/IGF-1 and TNF-α stimulate phosphorylation of IRS-1 at inhibitory Ser307 via distinct pathways. Journal Of Clinical Investigation 2001, 107: 181-189. PMID: 11160134, PMCID: PMC199174, DOI: 10.1172/jci10934.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnisomycinCHO CellsCricetinaeInsulinInsulin AntagonistsInsulin ResistanceInsulin-Like Growth Factor IMAP Kinase Kinase 1Mitogen-Activated Protein Kinase KinasesPhosphatidylinositol 3-KinasesPhosphorylationProtein Serine-Threonine KinasesReceptor, InsulinSerineSignal TransductionTumor Necrosis Factor-alphaTyrosineConceptsPhosphorylation of Ser307IRS-1Serine/threonine phosphorylationTNF-alpha-stimulated phosphorylationInsulin-stimulated tyrosine phosphorylationRelevant phosphorylation sitesDistinct kinase pathwaysInsulin/IGFInsulin-stimulated phosphorylationThreonine phosphorylationStimulates PhosphorylationPhosphorylation sitesJun kinaseTyrosine phosphorylationKinase pathwaySer307PhosphorylationCultured cellsDistinct pathwaysHeterologous inhibitionPolyclonal antibodiesPreadipocytesPathwayAdipocytesCells