Proacrosin/acrosin activity during spermiohistogenesis of the bull |
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| Authors: | Ahmed Mansouri Loc Phi-van Hans-Peter Geithe Wolfgang Engel |
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| Affiliation: | Institut für Humangenetik der Universität, Nikolausberger Weg 5a, D-3400 Göttingen, Federal Republic of Germany |
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| Abstract: | Abstract. Acrosin and its zymogen form, proacrosin, were extracted from early and late spermatids, from ejaculated and epididymal spermatozoa ( caput, corpus , and cauda ) of the bull. Activity of proacrosin/acrosin and the time course of proacrosin activation were studied. It turned out that proacrosin/acrosin activity is first demonstrable in haploid spermatids, increases during spermiohistogenesis in the testis, and remains nearly constant in epididymal and ejaculated spermatozoa. |
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