Thymidylate SynthaseFluorodeoxyuridylateDeoxyuracil NucleotidesThymidine MonophosphateFolic Acid AntagonistsFloxuridineAntimetabolites, AntineoplasticDihydrouracil Dehydrogenase (NADP)ThiophenesTetrahydrofolatesFluorouracilQuinazolinesNucleoside-Phosphate KinaseIsoindolesDeoxyuridineTrimetrexateFolic AcidTetrahydrofolate DehydrogenaseLactobacillus caseiPteroylpolyglutamic AcidsLeukemia L1210MethyltransferasesPolyglutamic AcidThymidineRNA, MessengerMolecular Sequence DataKineticsThymine NucleotidesBase SequenceMethotrexateThymidine PhosphorylaseEscherichia coliEnzyme InhibitorsLeucovorinHydroxymethyl and Formyl TransferasesProtein BiosynthesisGlutamatesGlycine HydroxymethyltransferaseColonic NeoplasmsOrotate PhosphoribosyltransferaseCitrate (si)-SynthaseColorectal NeoplasmsMutationTumor Cells, CulturedAmino Acid SequenceMolecular StructureReduced Folate Carrier ProteinGuanineThymidine KinaseCell LineDNALentinanUracil5-Methyltetrahydrofolate-Homocysteine S-MethyltransferasePhosphoribosylaminoimidazolecarboxamide FormyltransferaseGlycogen SynthaseMethylenetetrahydrofolate Reductase (NADPH2)Cloning, MolecularCell DivisionGlycogen Synthase Kinase 3Drug Resistance, NeoplasmPhosphoribosylglycinamide FormyltransferaseModels, MolecularNitric Oxide Synthase Type ICatalysisBinding SitesPolymorphism, GeneticDrug ResistancePeptide SynthasesAntineoplastic AgentsCell CycleStructure-Activity RelationshipDose-Response Relationship, DrugTandem Repeat SequencesFlavinsCells, CulturedTime FactorsTritiumGene Expression Regulation, EnzymologicTranscription, GeneticCrystallography, X-RayFolate Receptors, GPI-AnchoredDCMP DeaminaseDrug DesignNitric OxideThymineArginineIdoxuridineFolate Receptor 1PlasmidsSubstrate SpecificityDrug Screening Assays, AntitumorDNA, NeoplasmDNA ReplicationDrug SynergismRecombinant ProteinsProtein BindingPyrimidinesAdenocarcinomaDeoxyribonucleotides