title: Acrosomal proteolytic activity of amphibian sperm. A direct demonstration.
mesh_terms: D000588:Amines / Q000494:pharmacology; D000818:Animals; D001001:Anura; D002118:Calcium; D004492:Edetic Acid / Q000494:pharmacology; D005780:Gelatin / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D007659:Ketones / Q000494:pharmacology; D008297:Male; D008722:Methods; D008858:Microscopy, Phase-Contrast; D010447:Peptide Hydrolases / Q000032:analysis*; D011480:Protease Inhibitors; D011894:Rana pipiens; D013094:Spermatozoa / Q000187:drug effects / Q000201:enzymology* / Q000378:metabolism; D014105:Tosyl Compounds / Q000494:pharmacology; D014361:Trypsin Inhibitors / Q000494:pharmacology
chemical_list: D000588:Amines; D007659:Ketones; D011480:Protease Inhibitors; D014105:Tosyl Compounds; D014361:Trypsin Inhibitors; D005780:Gelatin; D004492:Edetic Acid; D010447:Peptide Hydrolases; D002118:Calcium