title: Towards a total analysis of polyribosome-associated ribonucleoprotein particles of sea urchin embryos.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002458:Cell Fractionation; D002499:Centrifugation, Density Gradient; D004625:Embryo, Nonmammalian / Q000032:analysis* / Q000166:cytology / Q000378:metabolism; D005314:Embryonic and Fetal Development; D007930:Leucine / Q000378:metabolism; D009698:Nucleoproteins / Q000032:analysis*; D011485:Protein Binding; D014176:Protein Biosynthesis; D011506:Proteins / Q000032:analysis; D012333:RNA, Messenger / Q000032:analysis* / Q000096:biosynthesis; D012270:Ribosomes / Q000032:analysis; D012617:Sea Urchins / Q000032:analysis* / Q000166:cytology / Q000378:metabolism; D014316:Tritium; D014529:Uridine / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D009698:Nucleoproteins; D011506:Proteins; D012333:RNA, Messenger; D014316:Tritium; D007930:Leucine; D014529:Uridine