title: Isolation of preribosomes from HeLa cells and their characterization by electrophoresis on uniform and exponential-gradient-polyacrylamide gels.
mesh_terms: D000178:Acrylamides; D000818:Animals; D002458:Cell Fractionation; D002466:Cell Nucleolus; D004589:Electrophoresis, Disc; D006367:HeLa Cells / Q000166:cytology*; D008722:Methods; D008970:Molecular Weight; D009698:Nucleoproteins / Q000032:analysis; D012334:RNA, Neoplasm / Q000302:isolation & purification; D012270:Ribosomes; D013053:Spectrophotometry; D014466:Ultraviolet Rays
chemical_list: D000178:Acrylamides; D009698:Nucleoproteins; D012334:RNA, Neoplasm