title: Demonstration of proacrosin and quantitation of acrosin in ejaculated human spermatozoa.
abstract: Proacrosin has been isolated from human ejaculated spermatozoa and constitutes at least 90% of the total acrosin present. The total amount of acrosin in milli-international units per million spermatozoa was between 4.4 and 8.9, with a mean of 6.5. This is the first report of the demonstration of proacrosin and the quantitation of total acrosin in human spermatozoa.
mesh_terms: D000176:Acrosin / Q000378:metabolism*; D004542:Ejaculation; D010450:Endopeptidases / Q000378:metabolism*; D004792:Enzyme Precursors / Q000378:metabolism*; D006801:Humans; D008297:Male; D013094:Spermatozoa / Q000378:metabolism*
chemical_list: D004792:Enzyme Precursors; D010450:Endopeptidases; C022438:proacrosin; D000176:Acrosin