December 13, 2018Open Access

The serine protease testisin is present on the surface of capacitated stallion spermatozoa and interacts with key zona pellucida binding proteins

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Abstract

Testisin appears to form part of the zona pellucida-binding complex in stallion spermatozoa and may be involved in the proteolytic cascade that prepares the sperm surface for interaction with the oocyte.

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Swegen et al. (Thu,) studied this question.

synapsesocial.com/papers/69d9c31600ab073a27837471 https://doi.org/https://doi.org/10.1111/andr.12569

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1<i>p</i>-Aminobenzamidine-sensitive acrosomal protease(s) other than acrosin serve the sperm penetration of the egg zona pellucida in mouse1998 · 44 citations
2Sperm from mice carrying a targeted mutation of the acrosin gene can penetrate the oocyte zona pellucida and effect fertilization.1994 · 369 citations
3Conventional in-vitro fertilisation versus intracytoplasmic sperm injection for the treatment of non-male-factor infertility: a randomised controlled trial2001 · 323 citations
4Testisin, a new human serine proteinase expressed by premeiotic testicular germ cells and lost in testicular germ cell tumors.1999 · 26 citations
5<i>p</i> -Aminobenzamidine, an acrosin inhibitor, inhibits mouse sperm penetration of the zona pellucida but not the acrosome reaction1982 · 92 citations

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