Cell CycleCell Cycle ProteinsCell DivisionGenes, cdcMitosisG2 PhaseDNA DamageCheckpoint Kinase 2Cyclin D1Protein-Serine-Threonine KinasesCyclin ACell Cycle CheckpointsS PhasePhosphatidylethanolaminesCyclin BProtein KinasesCyclin B1DNA ReplicationG1 PhaseCyclin Ecdc25 PhosphatasesSpindle ApparatusAtaxia Telangiectasia Mutated ProteinsCyclinsCDC2 Protein KinaseMutationHydroxyureaSchizosaccharomycesSaccharomyces cerevisiaeDNA-Binding ProteinsNuclear ProteinsDNA RepairSaccharomyces cerevisiae ProteinsFungal ProteinsG2 Phase Cell Cycle CheckpointsSchizosaccharomyces pombe ProteinsM Phase Cell Cycle CheckpointsPhosphorylationCyclin-Dependent KinasesTumor Suppressor ProteinsMolecular Sequence DataTumor Suppressor Protein p53Genes, FungalGamma RaysCyclin-Dependent Kinase 2Mad2 ProteinsCyclin D3Cyclin D2Models, BiologicalCyclin-Dependent Kinase Inhibitor p21Cyclin A1Retinoblastoma ProteinHeLa CellsApoptosisChromosomal InstabilityCell NucleusX-Ray DiffractionBase SequenceAtaxia TelangiectasiaCyclin DRadiation, IonizingSignal TransductionCell LineUltraviolet RaysDNA, FungalCell Line, TumorAmino Acid SequenceCDC2-CDC28 KinasesCyclin A2Cell ProliferationPhenotypeFlow CytometryCyclin B2Intracellular Signaling Peptides and ProteinsCentrosomeCyclin-Dependent Kinase 4FibroblastsProtein BindingDNAG1 Phase Cell Cycle CheckpointsUbiquitin-Protein Ligase ComplexesGenomic InstabilityCdc20 ProteinsRadiation ToleranceCyclin-Dependent Kinase Inhibitor p27InterphaseHistonesTime FactorsCells, CulturedNocodazoleCell Nucleus DivisionAnaphase-Promoting Complex-CyclosomeChromosome SegregationGene DeletionCaulobacter crescentusTumor Cells, CulturedS Phase Cell Cycle CheckpointsRepressor ProteinsRNA, Small InterferingAsymmetric Cell Division