Regulation of rat Na+-K+-ATPase activity by PKC is modulated by state of phosphorylation of Ser-943 by PKA
Cheng X, Höög J, Nairn A, Greengard P, Aperia A. Regulation of rat Na+-K+-ATPase activity by PKC is modulated by state of phosphorylation of Ser-943 by PKA. American Journal Of Physiology 1997, 273: c1981-c1986. PMID: 9435504, DOI: 10.1152/ajpcell.1997.273.6.c1981.Peer-Reviewed Original ResearchMeSH KeywordsAlanineAmino Acid SubstitutionAnimalsColforsinCOS CellsCyclic AMPCyclic AMP-Dependent Protein KinasesCytosolDichlororibofuranosylbenzimidazoleEnzyme ActivationHomeostasisIsoenzymesKineticsMutagenesis, Site-DirectedPhorbol 12,13-DibutyratePhosphorylationProtein Kinase CRatsRecombinant ProteinsSerineSodium-Potassium-Exchanging ATPaseThionucleotidesTransfectionConceptsProtein kinase AProtein kinase CATPase alpha 1State of phosphorylationEffect of PKCWild-type enzymeSpecific PKA activatorActivity of PKCEnzyme activityAlpha 1Direct phosphorylationCOS cellsATPase alphaKinase ASer-23Kinase CPKA activatorPhosphorylationPKA systemPhorbol esterATPase activityMutantsEffect of PDBuCellsInhibitionMutation of the Protein Kinase C Phosphorylation Site on Rat α1 Na+,K+-ATPase Alters Regulation of Intracellular Na+ and pH and Influences Cell Shape and Adhesiveness*
Belusa R, Wang Z, Matsubara T, Sahlgren B, Dulubova I, Nairn A, Ruoslahti E, Greengard P, Aperia A. Mutation of the Protein Kinase C Phosphorylation Site on Rat α1 Na+,K+-ATPase Alters Regulation of Intracellular Na+ and pH and Influences Cell Shape and Adhesiveness*. Journal Of Biological Chemistry 1997, 272: 20179-20184. PMID: 9242694, DOI: 10.1074/jbc.272.32.20179.Peer-Reviewed Original ResearchConceptsProtein kinase CProtein kinase APhosphorylation sitesProtein kinase C phosphorylation sitesKinase C phosphorylation sitesC phosphorylation sitesSites of phosphorylationATPase alpha1Influences cell shapePKC phosphorylation sitesEukaryotic cellsATP hydrolysisPKC phosphorylationRat α1COS cellsCell shapeKinase AWild typeSer-23Kinase CCell adhesionFunctional roleAlters regulationUntransfected cellsPhosphorylation