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Involvement of a sperm aminopeptidase in fertilization of the sea urchin

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Summary

Inhibitory efficiencies of bestatin methyl ester and its nine analogs for sea urchin sperm aminopeptidase activity were similar to the efficiency of the same compounds as inhibitors either of sperm respiration or of fertilization. This suggests that a sperm aminopeptidase plays a role in fertilization in the sea urchin, possibly through its involvement in sperm respiration.

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Author notes

  1. T. Yasuhara

    Present address: Meiji Institute of Health Science, 250, Odawara, Japan

Authors and Affiliations

  1. Department of Biochemistry, Faculty of Pharmaceutical Sciences, Hokkaido University, 060, Sapporo

    T. Yasuhara, H. Yokosawa & S. Ishii

  2. Department of Life Science, Faculty of Science, Tokyo Institute of Technology, 152, Tokyo, Japan

    M. Hoshi

Authors
  1. T. Yasuhara
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  2. H. Yokosawa
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  3. M. Hoshi
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  4. S. Ishii
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Additional information

Acknowledgment. We are grateful to Dr Wataru Tanaka of Nippon kayaku co. for his gifts of bestatin and its analogs. We are also indebted to Mrs Akiko Tsuchida-Watanabe for her technical assitance, and to the staff of Asamushi Marine Biological Station, Tohoku University, where part of this work was carried out. This work was supported in part by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture of Japan.

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Yasuhara, T., Yokosawa, H., Hoshi, M. et al. Involvement of a sperm aminopeptidase in fertilization of the sea urchin. Experientia 47, 100–103 (1991). https://doi.org/10.1007/BF02041267

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  • DOI: https://doi.org/10.1007/BF02041267

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