2023
Phosphatases maintain low catalytic activity of SGK1: DNA damage resets the balance in favor of phosphorylation
Gu W, Zheng H, Canessa C. Phosphatases maintain low catalytic activity of SGK1: DNA damage resets the balance in favor of phosphorylation. Journal Of Biological Chemistry 2023, 299: 104941. PMID: 37343701, PMCID: PMC10372406, DOI: 10.1016/j.jbc.2023.104941.Peer-Reviewed Original ResearchConceptsDNA-dependent protein kinaseCell survivalHsp90 chaperone complexDNA damage responseGlucocorticoid-induced kinase 1Inhibitor of phosphatasesChaperone complexGenotoxic stressDamage responseCatalytic subunitProtein kinaseNovel cancer therapiesKinase 1Stress conditionsDNA damageMolecular pathwaysSGK1 activityPP2ASGK1Cancer cellsDephosphorylationEndogenous inhibitorKinasePP5Phosphorylation
1999
The Serum and Glucocorticoid Kinase sgk Increases the Abundance of Epithelial Sodium Channels in the Plasma Membrane of Xenopus Oocytes*
de la Rosa D, Zhang P, Náray-Fejes-Tóth A, Fejes-Tóth G, Canessa C. The Serum and Glucocorticoid Kinase sgk Increases the Abundance of Epithelial Sodium Channels in the Plasma Membrane of Xenopus Oocytes*. Journal Of Biological Chemistry 1999, 274: 37834-37839. PMID: 10608847, DOI: 10.1074/jbc.274.53.37834.Peer-Reviewed Original ResearchConceptsCarboxyl terminusPlasma membraneEpithelial sodium channelSerine/threonineXenopus oocytesNumber of ENaCsGlucocorticoid-induced kinaseRenal epithelial cellsThreonine kinaseSodium channelsMembrane abundanceTyrosine residuesGamma subunitsSGKAbundance of ENaCCell surfacePhosphorylationTerminusAmiloride-sensitive sodium transportAbundanceSodium transportKinaseENaC.Epithelial cellsSubunitssgk Is an Aldosterone-induced Kinase in the Renal Collecting Duct EFFECTS ON EPITHELIAL Na+ CHANNELS*
Náray-Fejes-Tóth A, Canessa C, Cleaveland E, Aldrich G, Fejes-Tóth G. sgk Is an Aldosterone-induced Kinase in the Renal Collecting Duct EFFECTS ON EPITHELIAL Na+ CHANNELS*. Journal Of Biological Chemistry 1999, 274: 16973-16978. PMID: 10358046, DOI: 10.1074/jbc.274.24.16973.Peer-Reviewed Original ResearchMeSH KeywordsAldosteroneAmilorideAmino Acid SequenceAndrostanolsAnimalsElectric ConductivityEnzyme InductionImmediate-Early ProteinsKidney Tubules, CollectingMolecular Sequence DataNuclear ProteinsProtein Serine-Threonine KinasesRabbitsReceptors, MineralocorticoidRecombinant ProteinsRNA, MessengerSequence Homology, Amino AcidConceptsAddition of aldosteroneTarget cellsAldosterone-induced geneAldosterone-induced kinaseApical sodium channelsEarly phaseMineralocorticoid target cellsSodium reabsorptionMineralocorticoid receptorNative target cellsImmediate early genesAldosteroneStimulatory effectDuct cellsSodium channelsMRNA levelsDe novo protein synthesisRenal epitheliumPolymerase chain reaction-based subtractive hybridizationNovo protein synthesisEarly genesCellsDifferential display techniqueProtein synthesisKinase
1998
In vivo phosphorylation of the epithelial sodium channel
Shimkets R, Lifton R, Canessa C. In vivo phosphorylation of the epithelial sodium channel. Proceedings Of The National Academy Of Sciences Of The United States Of America 1998, 95: 3301-3305. PMID: 9501257, PMCID: PMC19736, DOI: 10.1073/pnas.95.6.3301.Peer-Reviewed Original ResearchMeSH KeywordsAldosteroneAmilorideAmino Acid SequenceAnimalsColforsinCyclic AMP-Dependent Protein KinasesDogsEpithelial CellsEpithelial Sodium ChannelsInsulinMolecular Sequence DataNephronsPeptide MappingPhosphopeptidesPhosphorylationProtein Kinase CRatsSodium Channel AgonistsSodium ChannelsTransfectionConceptsCarboxyl terminusEpithelial sodium channelAlpha subunitGamma subunitsDe novo phosphorylationSubunit of ENaC.Stable cotransfectionVivo phosphorylationProtein kinaseEpithelial cell lineSodium channelsMolecular mechanismsActivity of ENaCPhosphorylationSubunitsCell linesTerminusProteinBetaKinaseCotransfectionBasal stateSerineThreonineENaC.