title: Centrifugation of nuclear ribonucleoprotein particles of sea urchin embryos in cesium sulfate.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002467:Cell Nucleus / Q000378:metabolism*; D002499:Centrifugation, Density Gradient; D002843:Chromatin / Q000302:isolation & purification; D004247:DNA / Q000096:biosynthesis / Q000378:metabolism; D004625:Embryo, Nonmammalian / Q000378:metabolism*; D005260:Female; D009698:Nucleoproteins / Q000096:biosynthesis / Q000302:isolation & purification* / Q000378:metabolism; D009994:Osmolar Concentration; D011485:Protein Binding; D012313:RNA / Q000096:biosynthesis / Q000378:metabolism; D012270:Ribosomes / Q000378:metabolism; D012617:Sea Urchins / Q000196:embryology; D013045:Species Specificity; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014529:Uridine / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D002843:Chromatin; D009698:Nucleoproteins; D014316:Tritium; D012313:RNA; D004247:DNA; D013936:Thymidine; D014529:Uridine