Maleic AnhydridesPhosphoproteinsRibosomal ProteinsRibosomesDopamine and cAMP-Regulated Phosphoprotein 32PhosphorylationPhosphoprotein PhosphatasesMolecular Sequence DataAmino Acid SequenceMolecular WeightProtein KinasesMicrofilament ProteinsSynapsinsStathminViral ProteinsPhosphopeptidesPhosphorus RadioisotopesElectrophoresis, Polyacrylamide GelPhosphoserinePhosphothreonineCell LinePhosvitinElectrophoresis, Gel, Two-Dimensional