Checkpoint Kinase 2BiopsyProtein-Serine-Threonine KinasesProtein KinasesCell Cycle ProteinsDNA DamageAtaxia Telangiectasia Mutated ProteinsGenes, cdcG2 PhaseCell CycleMitosisM Phase Cell Cycle CheckpointsPhosphorylationS PhaseCell Cycle CheckpointsProtein Kinase InhibitorsPhosphatidylinositol 3-Kinasescdc25 PhosphatasesBiopsy, NeedleDNA ReplicationMutationHydroxyureaMAP Kinase Signaling SystemSaccharomyces cerevisiae ProteinsCDC2 Protein KinaseSpindle ApparatusSchizosaccharomyces pombe ProteinsDNA-Binding ProteinsG2 Phase Cell Cycle CheckpointsNuclear ProteinsSchizosaccharomycesTumor Suppressor ProteinsIntracellular Signaling Peptides and ProteinsCell Line, TumorS Phase Cell Cycle CheckpointsKinetochoresDNA RepairSignal TransductionSaccharomyces cerevisiaeTumor Suppressor Protein p53Calcium-Calmodulin-Dependent Protein KinasesRNA, Small InterferingApoptosisProtein-Tyrosine Kinasessrc-Family KinasesHeLa CellsProtein BindingRadiation, IonizingEnzyme ActivationNocodazoleCyclin-Dependent KinasesModels, BiologicalMolecular Sequence DataBlotting, WesternCell LineCell Divisionp38 Mitogen-Activated Protein KinasesCdc20 ProteinsG1 PhaseProtein Kinase CRNA InterferenceMethyl MethanesulfonateAurora KinasesDNA Breaks, Double-StrandedCell SurvivalGenomic InstabilityUltraviolet RaysEarly Detection of CancerAntineoplastic AgentsNeoplasmsHistonesBreast NeoplasmsAmino Acid SequenceMitogen-Activated Protein Kinase 1Cyclic AMP-Dependent Protein KinasesCyclin BFungal ProteinsTransfectionChromosome SegregationDNA, FungalProtein Structure, TertiaryMitogen-Activated Protein Kinase KinasesJNK Mitogen-Activated Protein Kinasesp21-Activated KinasesRNA, MessengerProstatic NeoplasmsMitogen-Activated Protein Kinase 3Cell ProliferationColonic NeoplasmsGamma RaysCell NucleusBase SequenceHCT116 CellsTumor Cells, CulturedSerineEnzyme InhibitorsImmunoblottingProto-Oncogene ProteinsStaurosporineLung Neoplasms