title: Sedimentation properties of ribonucleic acid from Rhodopseudomonas spheroides.
mesh_terms: D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D004926:Escherichia coli / Q000032:analysis; D005615:Freezing; D008274:Magnesium / Q000494:pharmacology; D010636:Phenols / Q000494:pharmacology; D012313:RNA / Q000302:isolation & purification*; D012241:Rhodopseudomonas / Q000032:analysis*; D012270:Ribosomes; D013395:Sucrose; D014316:Tritium; D014498:Uracil / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D010636:Phenols; D014316:Tritium; D014498:Uracil; D013395:Sucrose; D012313:RNA; D008274:Magnesium