Cell CycleCell ProliferationBacteriaCell Cycle ProteinsCell Cycle CheckpointsGram-Negative BacteriaGram-Positive BacteriaMolecular Sequence DataG1 PhaseBacteria, AnaerobicMitosisS PhaseCell DivisionCyclinsBacterial ProteinsRNA, Ribosomal, 16SMenstrual CycleG2 PhaseDNA, BacterialPhylogenyBacteria, AerobicApoptosisEscherichia coliCyclin-Dependent Kinase Inhibitor p21Amino Acid SequenceCyclin-Dependent Kinase Inhibitor p27Time FactorsBase SequenceRetinoblastoma ProteinG2 Phase Cell Cycle CheckpointsMutationDNA, RibosomalSequence Analysis, DNACell LineCell Line, TumorModels, BiologicalG0 PhaseCDC2 Protein KinasePhosphorylationDNA ReplicationTumor Suppressor Protein p53G1 Phase Cell Cycle CheckpointsProtein-Serine-Threonine KinasesCyclin-Dependent Kinase 2DNA-Binding ProteinsSignal TransductionFlow CytometryWater MicrobiologyCyclin D1DNA DamageCyclin ECells, CulturedGenes, cdcCulture MediaInterphaseCyclin ABacterial Physiological PhenomenaCyclin BAnti-Bacterial AgentsTranscription FactorsTranscription, GeneticNuclear ProteinsCyclin-Dependent Kinase 4Gram-Negative Aerobic BacteriaRNA, MessengerGene Expression Regulation, BacterialGram-Negative Anaerobic BacteriaTumor Suppressor ProteinsHeLa CellsSoil MicrobiologyCell NucleusGenes, BacterialCDC2-CDC28 KinasesGene Expression RegulationProtein BindingTumor Cells, CulturedKineticsEstrous CycleSaccharomyces cerevisiaeRNA, BacterialDNAPhenotypecdc25 PhosphatasesSeawaterColony Count, MicrobialSulfur-Reducing BacteriaE2F Transcription FactorsSpecies SpecificityBlotting, WesternSequence Homology, Amino AcidCell SurvivalCitric Acid CycleTemperatureCloning, MolecularCyclin B1Cell DifferentiationGene Expression ProfilingSymbiosisAnaerobiosisGenome, Bacterial