Cell CycleG2 PhaseG1 PhaseGene Products, vprMitosisCell Cycle ProteinsS PhaseCell DivisionMeiosisDisease ProgressionPhosphorylationCell Line, TumorCDC2 Protein KinaseCyclin BCyclinsSaccharomyces cerevisiaeStarfishCell Cycle CheckpointsSpindle ApparatusSchizosaccharomyces pombe ProteinsGenes, FungalProtein-Serine-Threonine KinasesSchizosaccharomycesDNA ReplicationSaccharomyces cerevisiae ProteinsMutationFungal ProteinsMolecular Sequence DataInterphaseCell NucleusOocytesUbiquitin-Protein Ligase ComplexesAnaphase-Promoting Complex-CyclosomeGene Expression Regulation, FungalTime FactorsNuclear ProteinsXenopus ProteinsDNA-Binding ProteinsProtein KinasesFertilizationZygoteSignal TransductionAmino Acid SequenceSpores, FungalTranscription FactorsCell ProliferationTranscription, GeneticCyclin-Dependent KinasesRNA, MessengerOogenesisApoptosisBase SequenceHeLa CellsXenopusPhenotypeModels, BiologicalNocodazolePost and Core TechniqueCell LineCyclin-Dependent Kinase Inhibitor p27G2 Phase Cell Cycle CheckpointsRetinoblastoma ProteinOvumDNA, FungalCentrosomeMenstrual CycleTelophaseCyclin-Dependent Kinase Inhibitor p21Germ CellsTumor Suppressor Protein p53Cyclin B1DNA DamageG0 PhaseFlow CytometryCyclin-Dependent Kinase 2Cells, CulturedCyclin AGenes, cdcCyclin ETumor Suppressor ProteinsMicrotubulesSequence Homology, Amino AcidCyclin D1Tumor Cells, CulturedMetaphaseAnaphaseChromosomescdc25 PhosphatasesBlotting, WesternMicrotubule-Associated ProteinsG1 Phase Cell Cycle CheckpointsCloning, MolecularGene Expression RegulationArabidopsisDNACell DifferentiationGene Expression Regulation, NeoplasticCell SurvivalCyclin-Dependent Kinase 4Immunohistochemistry