title: Structural analyses of mammalian ribosomal ribonucleic acid and its precursors. The distribution of polypyrimidine sequences in ribosomal 18-S RNA.
mesh_terms: D000818:Animals; D001483:Base Sequence; D006528:Carcinoma, Hepatocellular / Q000201:enzymology*; D002478:Cells, Cultured; D002499:Centrifugation, Density Gradient; D002852:Chromatography, Ion Exchange; D004586:Electrophoresis; D008113:Liver Neoplasms / Q000201:enzymology*; D008297:Male; D009374:Neoplasms, Experimental / Q000201:enzymology; D009841:Oligonucleotides / Q000032:analysis / Q000302:isolation & purification; D010710:Phosphates / Q000378:metabolism; D010759:Phosphorus Isotopes; D011119:Polynucleotides / Q000032:analysis; D011742:Pyrimidine Nucleotides / Q000032:analysis / Q000302:isolation & purification; D012334:RNA, Neoplasm / Q000032:analysis* / Q000096:biosynthesis; D012335:RNA, Ribosomal / Q000032:analysis* / Q000096:biosynthesis; D051381:Rats; D012260:Ribonucleases; D012265:Ribonucleotides / Q000032:analysis*
chemical_list: D009841:Oligonucleotides; D010710:Phosphates; D010759:Phosphorus Isotopes; D011119:Polynucleotides; D011742:Pyrimidine Nucleotides; D012334:RNA, Neoplasm; D012335:RNA, Ribosomal; D012265:Ribonucleotides; D012260:Ribonucleases