title: The location of acrosin and proacrosin in ram spermatozoa.
mesh_terms: D000176:Acrosin / Q000032:analysis*; D000818:Animals; D010450:Endopeptidases / Q000032:analysis*; D004789:Enzyme Activation; D004792:Enzyme Precursors / Q000032:analysis*; D005455:Fluorescent Antibody Technique; D008297:Male; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D012756:Sheep; D013077:Sperm Head / Q000201:enzymology / Q000648:ultrastructure; D013094:Spermatozoa / Q000201:enzymology* / Q000648:ultrastructure
chemical_list: D004792:Enzyme Precursors; D010450:Endopeptidases; C022438:proacrosin; D000176:Acrosin