title: Structural analysis of nucleolar precursors of ribosomal ribonucleic acid. Polypurine sequences in nucleolar 28 S ribonucleic acid of Novikoff hepatoma ascites cells.
mesh_terms: D000818:Animals; D001202:Ascitic Fluid / Q000473:pathology; D001345:Autoradiography; D001483:Base Sequence; D006528:Carcinoma, Hepatocellular / Q000378:metabolism*; D002466:Cell Nucleolus / Q000378:metabolism*; D002499:Centrifugation, Density Gradient; D002848:Chromatography, DEAE-Cellulose; D002852:Chromatography, Ion Exchange; D003597:Cytosine Nucleotides / Q000032:analysis; D004586:Electrophoresis; D006863:Hydrogen-Ion Concentration; D008113:Liver Neoplasms; D008297:Male; D009374:Neoplasms, Experimental / Q000378:metabolism*; D010179:Pancreas / Q000201:enzymology; D010209:Paper; D010710:Phosphates; D010744:Phosphoric Monoester Hydrolases; D010759:Phosphorus Isotopes; D011119:Polynucleotides / Q000032:analysis; D012334:RNA, Neoplasm / Q000032:analysis*; D012335:RNA, Ribosomal / Q000096:biosynthesis; D051381:Rats; D012260:Ribonucleases; D013154:Spleen / Q000201:enzymology; D014500:Uracil Nucleotides / Q000032:analysis
chemical_list: D003597:Cytosine Nucleotides; D010710:Phosphates; D010759:Phosphorus Isotopes; D011119:Polynucleotides; D012334:RNA, Neoplasm; D012335:RNA, Ribosomal; D014500:Uracil Nucleotides; D012260:Ribonucleases; D010744:Phosphoric Monoester Hydrolases