title: The initial phase in the polyuridylic acid-directed polymerization of phenylalanine.
mesh_terms: D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D004926:Escherichia coli / Q000378:metabolism*; D046911:Macromolecular Substances / Q000378:metabolism; D010452:Peptide Biosynthesis; D010649:Phenylalanine; D012329:RNA, Bacterial; D012343:RNA, Transfer; D012270:Ribosomes / Q000378:metabolism*; D014500:Uracil Nucleotides
chemical_list: D002247:Carbon Isotopes; D046911:Macromolecular Substances; D012329:RNA, Bacterial; D014500:Uracil Nucleotides; D010649:Phenylalanine; D012343:RNA, Transfer