Cell CycleMolecular BiologyCell Cycle ProteinsHumic SubstancesMolecular Sequence DataPolymerase Chain ReactionBase SequenceRNA, MessengerCell Cycle CheckpointsAmino Acid SequenceReverse Transcriptase Polymerase Chain ReactionModels, BiologicalMutationDNA PrimersSignal TransductionGene ExpressionG1 PhaseSequence Analysis, DNAPhylogenyImmunohistochemistryCloning, MolecularCell LineGene Expression ProfilingGene Expression RegulationDNAMitosisS PhaseCells, CulturedCell DivisionCyclinsPhenotypeTime FactorsOligonucleotide Array Sequence AnalysisRNA, Ribosomal, 16SCell DifferentiationTranscription, GeneticComputational BiologyMenstrual CycleG2 PhaseDNA, BacterialApoptosisCell ProliferationDNA, RibosomalBacteriaPolymorphism, Restriction Fragment LengthSoil MicrobiologySensitivity and SpecificityCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Sequence AlignmentRetinoblastoma ProteinG2 Phase Cell Cycle CheckpointsCell Line, TumorRecombinant ProteinsTumor Markers, BiologicalTumor Suppressor Protein p53Microscopy, ElectronPhosphorylationG0 PhaseCDC2 Protein KinaseProtein-Serine-Threonine KinasesG1 Phase Cell Cycle CheckpointsCyclin-Dependent Kinase 2Cyclin D1DNA-Binding ProteinsDNA ReplicationBrainDNA DamageCyclin EFlow CytometryDisease Models, AnimalGenes, cdcNuclear ProteinsInterphaseCyclin ATranscription FactorsCyclin BTumor Cells, CulturedCyclin-Dependent Kinase 4Tumor Suppressor ProteinsCell NucleusHeLa CellsSaccharomyces cerevisiaeCDC2-CDC28 KinasesProtein Bindingcdc25 PhosphatasesEstrous CycleCell SurvivalE2F Transcription FactorsBlotting, WesternCyclin B1Biological ProductsSaccharomyces cerevisiae ProteinsAntineoplastic AgentsTransfectionCyclin DCitric Acid CycleBromodeoxyuridineFibroblastsE2F1 Transcription Factor