title: Tryptic disruption of sperm-binding site of sea urchin egg surface.
mesh_terms: D000818:Animals; D000937:Antigen-Antibody Reactions; D001665:Binding Sites / Q000187:drug effects*; D002452:Cell Count; D003260:Contact Inhibition / Q000187:drug effects; D005260:Female; D005306:Fertilization / Q000187:drug effects*; D007106:Immune Sera; D008297:Male; D008722:Methods; D008854:Microscopy, Electron; D010063:Ovum / Q000187:drug effects* / Q000276:immunology; D012617:Sea Urchins; D012623:Seawater; D013094:Spermatozoa / Q000187:drug effects*; D013997:Time Factors; D014357:Trypsin / Q000494:pharmacology*; D014817:Vitelline Membrane / Q000187:drug effects
chemical_list: D007106:Immune Sera; D014357:Trypsin