title: The protein composition of HeLa ribosomal subunits and nucleolar precursor particles.
mesh_terms: D002466:Cell Nucleolus / Q000032:analysis*; D004591:Electrophoresis, Polyacrylamide Gel; D006367:HeLa Cells; D009363:Neoplasm Proteins / Q000032:analysis*; D012269:Ribosomal Proteins / Q000032:analysis*; D012270:Ribosomes / Q000032:analysis*
chemical_list: D009363:Neoplasm Proteins; D012269:Ribosomal Proteins