PolyribosomesRibosomesCentrifugation, Density GradientProtein BiosynthesisPuromycinPeptide BiosynthesisCell FractionationPoly ALeucineCell-Free SystemRNA, MessengerCarbon IsotopesRibonucleasesRNA, RibosomalMembranesCytoplasmReticulocytesTritiumRNAFragile X Mental Retardation ProteinPulvinusPactamycinRibonucleoproteinsUridineMicroscopy, ElectronPeptide Chain Elongation, TranslationalLumicolchicinesAmino AcidsLiverPhenylalanineCycloheximideDactinomycinDicarbethoxydihydrocollidineCarbon RadioisotopesRibosomal ProteinsPotassium ChlorideRNA-Binding ProteinsElectrophoresis, Polyacrylamide GelCentrifugation, ZonalRNA, ViralRNA, TransferEndoplasmic ReticulumPeptide Chain Initiation, TranslationalUltracentrifugationNucleic Acid HybridizationFragile X SyndromeAurintricarboxylic AcidTrichoderminL Cells (Cell Line)CentrifugationPhosphorus IsotopesMethodsHeLa CellsMolecular WeightOrotic AcidDendritesPoly UEdetic AcidChromatography, PaperDeoxyadenosinesElectrophoresisStarvationElectrophoresis, DiscOrganoidsCell LinePlacental LactogenPeptide Initiation FactorsSubcellular FractionsChromatography, GelMagnesiumRauscher VirusNerve Tissue ProteinsCell NucleusNucleoproteinsPoly(A)-Binding ProteinsPeptide Elongation FactorsPeptide Elongation Factor 2Chemical PrecipitationRabbitsViral ProteinsDeoxycholic AcidSpheroplastsCell MembraneKineticsUracil NucleotidesBase SequenceElectrophoresis, PaperOncogenic VirusesSucroseCarcinoma, Ehrlich TumorNeoplasms, ExperimentalChloramphenicolGlobinsRats, Inbred StrainsPolynucleotidesPeptidesEscherichia coliRNA, Bacterial