Structural analyses of mammalian ribosomal ribonucleic acid and its precursors. The distribution of polypyrimidine sequences in ribosomal 18-S RNA.

Animals Base Sequence Carcinoma, Hepatocellular/enzymology Cells, Cultured Centrifugation, Density Gradient Chromatography, Ion Exchange Electrophoresis Liver Neoplasms/enzymology Male Neoplasms, Experimental/enzymology Oligonucleotides/analysis,isolation & purification Phosphates/metabolism Phosphorus Isotopes Polynucleotides/analysis Pyrimidine Nucleotides/analysis,isolation & purification RNA, Neoplasm/analysis,biosynthesis RNA, Ribosomal/analysis,biosynthesis Rats Ribonucleases Ribonucleotides/analysis

Oligonucleotides Phosphates Phosphorus Isotopes Polynucleotides Pyrimidine Nucleotides RNA, Neoplasm RNA, Ribosomal Ribonucleotides Ribonucleases