title: A trypsin-like proteinase localized in cortical granules isolated from unfertilized sea urchin eggs by zonal centrifugation. Role of the enzyme in fertilization.
mesh_terms: D000135:Acid Phosphatase / Q000032:analysis; D000818:Animals; D002501:Centrifugation, Zonal; D003594:Cytoplasmic Granules / Q000201:enzymology; D004527:Egg Proteins / Q000032:analysis; D010450:Endopeptidases / Q000032:analysis* / Q000502:physiology; D004950:Esterases / Q000032:analysis; D005260:Female; D005306:Fertilization; D066298:In Vitro Techniques; D008297:Male; D010063:Ovum / Q000166:cytology / Q000187:drug effects / Q000201:enzymology*; D012617:Sea Urchins / Q000196:embryology*; D014105:Tosyl Compounds / Q000494:pharmacology; D014361:Trypsin Inhibitors / Q000494:pharmacology
chemical_list: D004527:Egg Proteins; D014105:Tosyl Compounds; D014361:Trypsin Inhibitors; D004950:Esterases; D000135:Acid Phosphatase; D010450:Endopeptidases