title: Properties of glycoprotein particles and their changes during development of sea urchin eggs and embryos.
mesh_terms: D000818:Animals; D002458:Cell Fractionation; D002467:Cell Nucleus / Q000032:analysis; D002499:Centrifugation, Density Gradient; D004247:DNA / Q000032:analysis; D004589:Electrophoresis, Disc; D004625:Embryo, Nonmammalian / Q000032:analysis*; D005260:Female; D006023:Glycoproteins / Q000032:analysis* / Q000302:isolation & purification; D006595:Hexosamines / Q000032:analysis; D006601:Hexoses / Q000032:analysis; D007814:Larva / Q000032:analysis; D008722:Methods; D008861:Microsomes / Q000032:analysis; D008928:Mitochondria / Q000032:analysis; D009438:Neuraminic Acids / Q000032:analysis; D010063:Ovum / Q000032:analysis*; D011506:Proteins / Q000032:analysis; D012313:RNA / Q000032:analysis; D012617:Sea Urchins; D014461:Ultracentrifugation
chemical_list: D006023:Glycoproteins; D006595:Hexosamines; D006601:Hexoses; D009438:Neuraminic Acids; D011506:Proteins; D012313:RNA; D004247:DNA