SerineAdenosinePhosphorylationPhosphoenolpyruvate CarboxylaseAmino Acid SequenceMolecular Sequence DataThreonineAntibodies, Phospho-SpecificProtein KinasesMutagenesis, Site-DirectedBinding SitesProtein-Serine-Threonine KinasesPhosphopeptidesReceptor, Adenosine A2APeptide MappingReceptor, Adenosine A1Enzyme ActivationKineticsCell LineRecombinant ProteinsCalcium-Calmodulin-Dependent Protein KinasesMutationProtein Processing, Post-TranslationalPhosphoserineAdenosine DeaminaseReceptor, Adenosine A3Signal TransductionAdenosine KinaseReceptor, Adenosine A2BTyrosinePhosphoproteinsProtein BindingReceptors, Adenosine A2Adenosine A2 Receptor AgonistsSerine EndopeptidasesAdenosine A2 Receptor AntagonistsProtein Structure, TertiaryReceptors, Purinergic P1Protein Kinase CAdenosine A1 Receptor AntagonistsBase SequenceSubstrate SpecificityCells, CulturedSequence Homology, Amino AcidCyclic AMP-Dependent Protein KinasesAdenosine A1 Receptor AgonistsModels, MolecularTransfectionCasein Kinase IIOxidative PhosphorylationAmino Acid SubstitutionProtein-Tyrosine KinasesEnzyme InhibitorsPeptide FragmentsAdenosine MonophosphateProtein ConformationElectrophoresis, Polyacrylamide GelCyclic AMPStructure-Activity RelationshipPurinergic P1 Receptor AntagonistsBlotting, WesternRecombinant Fusion ProteinsPurinergic P1 Receptor AgonistsCOS CellsXanthinesPhosphotyrosinePhosphothreonineCloning, MolecularAmino AcidsPhosphoprotein PhosphatasesMolecular WeightDNA-Binding ProteinsHeLa CellsCalciumProto-Oncogene Proteins c-aktSequence AlignmentProteinsEscherichia coliCattlePrecipitin TestsAmino Acid MotifsMitogen-Activated Protein KinasesCell MembranePhosphoamino AcidsPeptidesSerine ProteasesAdenosine-5'-(N-ethylcarboxamide)Serine Proteinase InhibitorsCysteineTrypsinProto-Oncogene ProteinsCarrier ProteinsAlanineMembrane ProteinsCasein KinasesImmunoblottingIntracellular Signaling Peptides and ProteinsCricetinaeTime FactorsImmunoprecipitation