Intercellular JunctionsAdherens JunctionsCell CycleCarcinoma, Basal CellCadherinsCell Cycle ProteinsGap JunctionsTight JunctionsBasal Cell Nevus SyndromeSkin NeoplasmsCell Cycle CheckpointsNeuromuscular JunctionG1 PhaseNeoplasms, Basal CellCell DivisionMitosisS PhaseCyclinsCell ProliferationMenstrual CycleG2 PhaseMolecular Sequence DataApoptosisEpithelial CellsEyelid NeoplasmsConnexinsCell LineCells, CulturedImmunohistochemistryCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Connexin 43Retinoblastoma ProteinG2 Phase Cell Cycle CheckpointsSignal TransductionCell Line, TumorTumor Suppressor Protein p53Base SequenceMutationPhosphorylationFacial NeoplasmsCell DifferentiationDNA-Binding ProteinsRNA, MessengerMohs SurgeryTime FactorsMembrane ProteinsEpitheliumProtein-Serine-Threonine KinasesCDC2 Protein KinaseG0 PhaseKeratinsKeratin-14Transcription FactorsCyclin D1DNA ReplicationG1 Phase Cell Cycle CheckpointsZonula Occludens-1 ProteinModels, BiologicalDNA DamageCyclin-Dependent Kinase 2Flow CytometryTumor Suppressor ProteinsAmino Acid SequenceEsophagogastric JunctionSkinNuclear ProteinsOccludinKeratinocytesCyclin EBlotting, WesternCell NucleusDNAGenes, cdcGene Expression RegulationTumor Cells, CulturedCyclin AMicroscopy, ElectronInterphaseEpidermisCyclin BHeLa CellsCyclin-Dependent Kinase 4Transcription, GeneticBromodeoxyuridineCarcinoma, Squamous CellTight Junction ProteinsHolliday Junction ResolvasesProtein BindingCDC2-CDC28 KinasesMicroscopy, FluorescenceEstrous CycleTransfectionFreeze Fracturingcdc25 PhosphatasesCell SurvivalFluorescent Antibody TechniqueSaccharomyces cerevisiaeE2F Transcription FactorsReverse Transcriptase Polymerase Chain Reaction