Abstract
Fertilization is initiated by sperm binding to the vitelline coat, a glycoprotein coat, of the eggs. After the sperm binding, sperm undergoes the acrosome reaction, an exocytosis of the acrosome. By this acrosome reaction, sperm proteases or lytic agents in the acrosome which allows sperm to penetrate through the vitelline coat are exposed and released. Subsequently, the sperm-egg membrane fusion occurs, which triggers a transient increase in intracellular calcium ions, leading to the exocytosis and the resumption of the meiotic division cycle, i.e., egg activation.
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© 1996 Plenum Press, New York
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Sawada, H., Kawahara, H., Saitoh, Y., Yokosawa, H. (1996). Physiological Functions of Proteasomes in Ascidian Fertilization and Embryonic Cell Cycle. In: Suzuki, K., Bond, J.S. (eds) Intracellular Protein Catabolism. Advances in Experimental Medicine and Biology, vol 389. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0335-0_28
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DOI: https://doi.org/10.1007/978-1-4613-0335-0_28
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